[{"date_updated":"2025-03-06T18:57:03Z","publisher":"Springer Science and Business Media LLC","author":[{"first_name":"Tim","full_name":"Lehmann, Tim","id":"41584","last_name":"Lehmann"},{"first_name":"Anton Samuel","last_name":"Visser","full_name":"Visser, Anton Samuel","id":"52012"},{"last_name":"Havers","full_name":"Havers, Tim","first_name":"Tim"},{"last_name":"Büchel","id":"41088","full_name":"Büchel, Daniel","first_name":"Daniel"},{"first_name":"Jochen","full_name":"Baumeister, Jochen","id":"46","orcid":"0000-0003-2683-5826","last_name":"Baumeister"}],"date_created":"2025-03-06T18:56:34Z","volume":243,"title":"Dynamic modulations of effective brain connectivity associated with postural instability during multi-joint compound movement on compliant surface","doi":"10.1007/s00221-025-07039-2","publication_status":"published","publication_identifier":{"issn":["0014-4819","1432-1106"]},"issue":"4","year":"2025","citation":{"ieee":"T. Lehmann, A. S. Visser, T. Havers, D. Büchel, and J. Baumeister, “Dynamic modulations of effective brain connectivity associated with postural instability during multi-joint compound movement on compliant surface,” <i>Experimental Brain Research</i>, vol. 243, no. 4, Art. no. 80, 2025, doi: <a href=\"https://doi.org/10.1007/s00221-025-07039-2\">10.1007/s00221-025-07039-2</a>.","chicago":"Lehmann, Tim, Anton Samuel Visser, Tim Havers, Daniel Büchel, and Jochen Baumeister. “Dynamic Modulations of Effective Brain Connectivity Associated with Postural Instability during Multi-Joint Compound Movement on Compliant Surface.” <i>Experimental Brain Research</i> 243, no. 4 (2025). <a href=\"https://doi.org/10.1007/s00221-025-07039-2\">https://doi.org/10.1007/s00221-025-07039-2</a>.","ama":"Lehmann T, Visser AS, Havers T, Büchel D, Baumeister J. Dynamic modulations of effective brain connectivity associated with postural instability during multi-joint compound movement on compliant surface. <i>Experimental Brain Research</i>. 2025;243(4). doi:<a href=\"https://doi.org/10.1007/s00221-025-07039-2\">10.1007/s00221-025-07039-2</a>","bibtex":"@article{Lehmann_Visser_Havers_Büchel_Baumeister_2025, title={Dynamic modulations of effective brain connectivity associated with postural instability during multi-joint compound movement on compliant surface}, volume={243}, DOI={<a href=\"https://doi.org/10.1007/s00221-025-07039-2\">10.1007/s00221-025-07039-2</a>}, number={480}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Lehmann, Tim and Visser, Anton Samuel and Havers, Tim and Büchel, Daniel and Baumeister, Jochen}, year={2025} }","mla":"Lehmann, Tim, et al. “Dynamic Modulations of Effective Brain Connectivity Associated with Postural Instability during Multi-Joint Compound Movement on Compliant Surface.” <i>Experimental Brain Research</i>, vol. 243, no. 4, 80, Springer Science and Business Media LLC, 2025, doi:<a href=\"https://doi.org/10.1007/s00221-025-07039-2\">10.1007/s00221-025-07039-2</a>.","short":"T. Lehmann, A.S. Visser, T. Havers, D. Büchel, J. Baumeister, Experimental Brain Research 243 (2025).","apa":"Lehmann, T., Visser, A. S., Havers, T., Büchel, D., &#38; Baumeister, J. (2025). Dynamic modulations of effective brain connectivity associated with postural instability during multi-joint compound movement on compliant surface. <i>Experimental Brain Research</i>, <i>243</i>(4), Article 80. <a href=\"https://doi.org/10.1007/s00221-025-07039-2\">https://doi.org/10.1007/s00221-025-07039-2</a>"},"intvolume":"       243","_id":"58925","user_id":"46","department":[{"_id":"172"}],"article_number":"80","language":[{"iso":"eng"}],"type":"journal_article","publication":"Experimental Brain Research","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n          <jats:p>Random fluctuations in somatosensory signals affect the ability of effectively coordinating multimodal information pertaining to the postural state during movement. Therefore, this study aimed to investigate the impact of a compliant surface on cortico-cortical causal information flow during multi-joint compound movements. Fifteen healthy adults (7 female / 8 male, 25.9 ± 4.0 years) performed 5 × 20 repetitions of bodyweight squats on firm and compliant surface. Motor behavior was quantified by center of pressure (CoP) displacements, hip movement and the root mean square of the rectus femoris activity. Using source space analysis, renormalized partial directed coherence (rPDC) computed subject-level multivariate effective brain connectivity of sensorimotor nodes. Bootstrap statistics revealed significantly decreased medio-lateral CoP displacement (<jats:italic>p</jats:italic> &lt; 0.001), significantly increased velocity of medio-lateral hip motion (<jats:italic>p</jats:italic> &lt; 0.001) as well as significantly lower rectus femoris activity (<jats:italic>p</jats:italic> &lt; 0.01) in the compliant surface condition. On the cortical level, rPDC showed significantly modulated information flow in theta and beta frequencies for fronto-parietal edges (<jats:italic>p</jats:italic> &lt; 0.01) only during the concentric phase of the movement. The compliant surface led to increased difficulties controlling hip but not center of pressure motion in the medio-lateral plane. Moreover, a decreased activation of the prime movers accompanied by modulations of effective brain connectivity among fronto-central nodes may point to altered demands on sensorimotor information processing in presence of sensory noise when performing bodyweight squats on compliant surface. Further studies are needed to evaluate a potential benefit for athletic and clinical populations.</jats:p>"}],"status":"public"},{"language":[{"iso":"eng"}],"_id":"61002","user_id":"33213","department":[{"_id":"35"},{"_id":"176"},{"_id":"17"}],"abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>Ictal and interictal activity within the autonomic nervous system is characterized by a sympathetic overshoot in people with epilepsy. This autonomic dysfunction is assumed to be driven by alterations in the central autonomic network. In this study, exercise-induced changes of the interrelation of central and peripheral autonomic activity in patients with epilepsy was assessed. 21 patients with epilepsy (16 seizure-free), and 21 healthy matched controls performed an exhaustive bicycle ergometer test. Immediately before and after the exercise test, resting state electroencephalography measurements (Brain Products GmbH, 128-channel actiCHamp) of 5 min were carried out to investigate functional connectivity assessed by phase locking value in source space for whole brain, central autonomic network and visual network. Additionally, 1-lead ECG (Brain products GmbH) was performed to analyze parasympathetic (root mean square of successive differences (RMSSD) of the heart rate variability) and sympathetic activity (electrodermal activity (meanEDA)). MeanEDA increased (<jats:italic>p</jats:italic> &lt; 0.001) and RMSSD decreased (<jats:italic>p</jats:italic> &lt; 0.001) from pre to post-exercise in both groups. Correlation coefficients of meanEDA and central autonomic network functional connectivity differed significantly between the groups (<jats:italic>p</jats:italic> = 0.004) after exercise. Both patients with epilepsy and normal control subjects revealed the expected physiological peripheral autonomic responses to acute exhaustive exercise, but alterations of the correlation between central autonomic and peripheral sympathetic activity may indicate a different sympathetic reactivity after exercise in patients with epilepsy. The clinical relevance of this finding and its modulators (seizures, anti-seizure medication, etc.) still needs to be elucidated.</jats:p>","lang":"eng"}],"status":"public","type":"journal_article","publication":"Experimental Brain Research","title":"Exercise-induced central and peripheral sympathetic activity in a community-based group of epilepsy patients differ from healthy controls","doi":"10.1007/s00221-024-06792-0","date_updated":"2025-08-25T15:47:52Z","publisher":"Springer Science and Business Media LLC","date_created":"2025-08-25T15:44:18Z","author":[{"full_name":"van den Bongard, Franziska","last_name":"van den Bongard","first_name":"Franziska"},{"first_name":"Julia Kristin","full_name":"Gowik, Julia Kristin","last_name":"Gowik"},{"first_name":"Jessica","last_name":"Coenen","full_name":"Coenen, Jessica"},{"last_name":"Jakobsmeyer","full_name":"Jakobsmeyer, Rasmus","first_name":"Rasmus"},{"first_name":"Claus","last_name":"Reinsberger","full_name":"Reinsberger, Claus"}],"volume":242,"year":"2024","citation":{"ama":"van den Bongard F, Gowik JK, Coenen J, Jakobsmeyer R, Reinsberger C. Exercise-induced central and peripheral sympathetic activity in a community-based group of epilepsy patients differ from healthy controls. <i>Experimental Brain Research</i>. 2024;242(6):1301-1310. doi:<a href=\"https://doi.org/10.1007/s00221-024-06792-0\">10.1007/s00221-024-06792-0</a>","chicago":"Bongard, Franziska van den, Julia Kristin Gowik, Jessica Coenen, Rasmus Jakobsmeyer, and Claus Reinsberger. “Exercise-Induced Central and Peripheral Sympathetic Activity in a Community-Based Group of Epilepsy Patients Differ from Healthy Controls.” <i>Experimental Brain Research</i> 242, no. 6 (2024): 1301–10. <a href=\"https://doi.org/10.1007/s00221-024-06792-0\">https://doi.org/10.1007/s00221-024-06792-0</a>.","ieee":"F. van den Bongard, J. K. Gowik, J. Coenen, R. Jakobsmeyer, and C. Reinsberger, “Exercise-induced central and peripheral sympathetic activity in a community-based group of epilepsy patients differ from healthy controls,” <i>Experimental Brain Research</i>, vol. 242, no. 6, pp. 1301–1310, 2024, doi: <a href=\"https://doi.org/10.1007/s00221-024-06792-0\">10.1007/s00221-024-06792-0</a>.","short":"F. van den Bongard, J.K. Gowik, J. Coenen, R. Jakobsmeyer, C. Reinsberger, Experimental Brain Research 242 (2024) 1301–1310.","bibtex":"@article{van den Bongard_Gowik_Coenen_Jakobsmeyer_Reinsberger_2024, title={Exercise-induced central and peripheral sympathetic activity in a community-based group of epilepsy patients differ from healthy controls}, volume={242}, DOI={<a href=\"https://doi.org/10.1007/s00221-024-06792-0\">10.1007/s00221-024-06792-0</a>}, number={6}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={van den Bongard, Franziska and Gowik, Julia Kristin and Coenen, Jessica and Jakobsmeyer, Rasmus and Reinsberger, Claus}, year={2024}, pages={1301–1310} }","mla":"van den Bongard, Franziska, et al. “Exercise-Induced Central and Peripheral Sympathetic Activity in a Community-Based Group of Epilepsy Patients Differ from Healthy Controls.” <i>Experimental Brain Research</i>, vol. 242, no. 6, Springer Science and Business Media LLC, 2024, pp. 1301–10, doi:<a href=\"https://doi.org/10.1007/s00221-024-06792-0\">10.1007/s00221-024-06792-0</a>.","apa":"van den Bongard, F., Gowik, J. K., Coenen, J., Jakobsmeyer, R., &#38; Reinsberger, C. (2024). Exercise-induced central and peripheral sympathetic activity in a community-based group of epilepsy patients differ from healthy controls. <i>Experimental Brain Research</i>, <i>242</i>(6), 1301–1310. <a href=\"https://doi.org/10.1007/s00221-024-06792-0\">https://doi.org/10.1007/s00221-024-06792-0</a>"},"intvolume":"       242","page":"1301-1310","publication_status":"published","publication_identifier":{"issn":["0014-4819","1432-1106"]},"issue":"6"},{"date_created":"2022-05-09T11:26:17Z","author":[{"id":"52012","full_name":"Visser, Anton","last_name":"Visser","first_name":"Anton"},{"last_name":"Büchel","id":"41088","full_name":"Büchel, Daniel","first_name":"Daniel"},{"id":"41584","full_name":"Lehmann, Tim","last_name":"Lehmann","first_name":"Tim"},{"last_name":"Baumeister","orcid":"0000-0003-2683-5826","full_name":"Baumeister, Jochen","id":"46","first_name":"Jochen"}],"publisher":"Springer Science and Business Media LLC","date_updated":"2023-03-13T15:04:36Z","doi":"10.1007/s00221-022-06366-y","title":"Continuous table tennis is associated with processing in frontal brain areas: an EEG approach","publication_identifier":{"issn":["0014-4819","1432-1106"]},"publication_status":"published","citation":{"bibtex":"@article{Visser_Büchel_Lehmann_Baumeister_2022, title={Continuous table tennis is associated with processing in frontal brain areas: an EEG approach}, DOI={<a href=\"https://doi.org/10.1007/s00221-022-06366-y\">10.1007/s00221-022-06366-y</a>}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Visser, Anton and Büchel, Daniel and Lehmann, Tim and Baumeister, Jochen}, year={2022} }","mla":"Visser, Anton, et al. “Continuous Table Tennis Is Associated with Processing in Frontal Brain Areas: An EEG Approach.” <i>Experimental Brain Research</i>, Springer Science and Business Media LLC, 2022, doi:<a href=\"https://doi.org/10.1007/s00221-022-06366-y\">10.1007/s00221-022-06366-y</a>.","short":"A. Visser, D. Büchel, T. Lehmann, J. Baumeister, Experimental Brain Research (2022).","apa":"Visser, A., Büchel, D., Lehmann, T., &#38; Baumeister, J. (2022). Continuous table tennis is associated with processing in frontal brain areas: an EEG approach. <i>Experimental Brain Research</i>. <a href=\"https://doi.org/10.1007/s00221-022-06366-y\">https://doi.org/10.1007/s00221-022-06366-y</a>","ama":"Visser A, Büchel D, Lehmann T, Baumeister J. Continuous table tennis is associated with processing in frontal brain areas: an EEG approach. <i>Experimental Brain Research</i>. Published online 2022. doi:<a href=\"https://doi.org/10.1007/s00221-022-06366-y\">10.1007/s00221-022-06366-y</a>","ieee":"A. Visser, D. Büchel, T. Lehmann, and J. Baumeister, “Continuous table tennis is associated with processing in frontal brain areas: an EEG approach,” <i>Experimental Brain Research</i>, 2022, doi: <a href=\"https://doi.org/10.1007/s00221-022-06366-y\">10.1007/s00221-022-06366-y</a>.","chicago":"Visser, Anton, Daniel Büchel, Tim Lehmann, and Jochen Baumeister. “Continuous Table Tennis Is Associated with Processing in Frontal Brain Areas: An EEG Approach.” <i>Experimental Brain Research</i>, 2022. <a href=\"https://doi.org/10.1007/s00221-022-06366-y\">https://doi.org/10.1007/s00221-022-06366-y</a>."},"year":"2022","department":[{"_id":"172"},{"_id":"17"}],"user_id":"46","_id":"31112","language":[{"iso":"eng"}],"keyword":["General Neuroscience"],"publication":"Experimental Brain Research","type":"journal_article","status":"public","abstract":[{"text":"<jats:title>Abstract</jats:title><jats:p>Coordinative challenging exercises in changing environments referred to as open-skill exercises seem to be beneficial on cognitive function. Although electroencephalographic research allows to investigate changes in cortical processing during movement, information about cortical dynamics during open-skill exercise is lacking. Therefore, the present study examines frontal brain activation during table tennis as an open-skill exercise compared to cycling exercise and a cognitive task. 21 healthy young adults conducted three blocks of table tennis, cycling and n-back task. Throughout the experiment, cortical activity was measured using 64-channel EEG system connected to a wireless amplifier. Cortical activity was analyzed calculating theta power (4–7.5 Hz) in frontocentral clusters revealed from independent component analysis. Repeated measures ANOVA was used to identify within subject differences between conditions (table tennis, cycling, n-back; <jats:italic>p</jats:italic> &lt; .05). ANOVA revealed main-effects of condition on theta power in frontal (<jats:italic>p</jats:italic> &lt; .01, <jats:italic>η</jats:italic><jats:sub>p</jats:sub><jats:sup>2</jats:sup> = 0.35) and frontocentral (<jats:italic>p</jats:italic> &lt; .01, <jats:italic>η</jats:italic><jats:sub>p</jats:sub><jats:sup>2</jats:sup> = 0.39) brain areas. Post-hoc tests revealed increased theta power in table tennis compared to cycling in frontal brain areas (<jats:italic>p</jats:italic> &lt; .05, <jats:italic>d</jats:italic> = 1.42). In frontocentral brain areas, theta power was significant higher in table tennis compared to cycling (<jats:italic>p</jats:italic> &lt; .01, <jats:italic>d</jats:italic> = 1.03) and table tennis compared to the cognitive task (<jats:italic>p</jats:italic> &lt; .01, <jats:italic>d</jats:italic> = 1.06). Increases in theta power during continuous table tennis may reflect the increased demands in perception and processing of environmental stimuli during open-skill exercise. This study provides important insights that support the beneficial effect of open-skill exercise on brain function and suggest that using open-skill exercise may serve as an intervention to induce activation of the frontal cortex.</jats:p>","lang":"eng"}]},{"year":"2021","citation":{"apa":"Büchel, D., Lehmann, T., Ullrich, S., Cockcroft, J., Louw, Q., &#38; Baumeister, J. (2021). Stance leg and surface stability modulate cortical activity during human single leg stance. <i>Experimental Brain Research</i>, 1193–1202. <a href=\"https://doi.org/10.1007/s00221-021-06035-6\">https://doi.org/10.1007/s00221-021-06035-6</a>","mla":"Büchel, Daniel, et al. “Stance Leg and Surface Stability Modulate Cortical Activity during Human Single Leg Stance.” <i>Experimental Brain Research</i>, 2021, pp. 1193–202, doi:<a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>.","bibtex":"@article{Büchel_Lehmann_Ullrich_Cockcroft_Louw_Baumeister_2021, title={Stance leg and surface stability modulate cortical activity during human single leg stance}, DOI={<a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>}, journal={Experimental Brain Research}, author={Büchel, Daniel and Lehmann, Tim and Ullrich, Sarah and Cockcroft, John and Louw, Quinette and Baumeister, Jochen}, year={2021}, pages={1193–1202} }","short":"D. Büchel, T. Lehmann, S. Ullrich, J. Cockcroft, Q. Louw, J. Baumeister, Experimental Brain Research (2021) 1193–1202.","ieee":"D. Büchel, T. Lehmann, S. Ullrich, J. Cockcroft, Q. Louw, and J. Baumeister, “Stance leg and surface stability modulate cortical activity during human single leg stance,” <i>Experimental Brain Research</i>, pp. 1193–1202, 2021, doi: <a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>.","chicago":"Büchel, Daniel, Tim Lehmann, Sarah Ullrich, John Cockcroft, Quinette Louw, and Jochen Baumeister. “Stance Leg and Surface Stability Modulate Cortical Activity during Human Single Leg Stance.” <i>Experimental Brain Research</i>, 2021, 1193–1202. <a href=\"https://doi.org/10.1007/s00221-021-06035-6\">https://doi.org/10.1007/s00221-021-06035-6</a>.","ama":"Büchel D, Lehmann T, Ullrich S, Cockcroft J, Louw Q, Baumeister J. Stance leg and surface stability modulate cortical activity during human single leg stance. <i>Experimental Brain Research</i>. Published online 2021:1193-1202. doi:<a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>"},"page":"1193-1202","publication_status":"published","publication_identifier":{"issn":["0014-4819","1432-1106"]},"title":"Stance leg and surface stability modulate cortical activity during human single leg stance","doi":"10.1007/s00221-021-06035-6","date_updated":"2022-01-06T06:57:15Z","author":[{"last_name":"Büchel","id":"41088","full_name":"Büchel, Daniel","first_name":"Daniel"},{"full_name":"Lehmann, Tim","last_name":"Lehmann","first_name":"Tim"},{"last_name":"Ullrich","full_name":"Ullrich, Sarah","first_name":"Sarah"},{"first_name":"John","last_name":"Cockcroft","full_name":"Cockcroft, John"},{"first_name":"Quinette","full_name":"Louw, Quinette","last_name":"Louw"},{"full_name":"Baumeister, Jochen","id":"46","orcid":"0000-0003-2683-5826","last_name":"Baumeister","first_name":"Jochen"}],"date_created":"2021-10-11T07:44:57Z","abstract":[{"text":"<jats:title>Abstract </jats:title><jats:p>Mobile Electroencephalography (EEG) provides insights into cortical contributions to postural control. Although changes in theta (4–8 Hz) and alpha frequency power (8–12 Hz) were shown to reflect attentional and sensorimotor processing during balance tasks, information about the effect of stance leg on cortical processing related to postural control is lacking. Therefore, the aim was to examine patterns of cortical activity during single-leg stance with varying surface stability. EEG and force plate data from 21 healthy males (22.43 ± 2.23 years) was recorded during unipedal stance (left/right) on a stable and unstable surface. Using source-space analysis, power spectral density was analyzed in the theta, alpha-1 (8–10 Hz) and alpha-2 (10–12 Hz) frequency bands. Repeated measures ANOVA with the factors leg and surface stability revealed significant interaction effects in the left (<jats:italic>p</jats:italic> = 0.045, <jats:italic>η</jats:italic><jats:sub><jats:italic>p</jats:italic></jats:sub><jats:sup>2</jats:sup> = 0.13) and right motor clusters (<jats:italic>F</jats:italic> = 16.156; <jats:italic>p</jats:italic> = 0.001, <jats:italic>η</jats:italic><jats:sub><jats:italic>p</jats:italic></jats:sub><jats:sup>2</jats:sup> = 0.41). Furthermore, significant main effects for surface stability were observed for the fronto-central cluster (theta), left and right motor (alpha-1), as well as for the right parieto-occipital cluster (alpha-1/alpha-2). Leg dependent changes in alpha-2 power may indicate lateralized patterns of cortical processing in motor areas during single-leg stance. Future studies may therefore consider lateralized patterns of cortical activity for the interpretation of postural deficiencies in unilateral lower limb injuries.</jats:p>","lang":"eng"}],"status":"public","type":"journal_article","publication":"Experimental Brain Research","language":[{"iso":"eng"}],"_id":"26013","user_id":"41088","department":[{"_id":"172"}]},{"doi":"10.1007/s00221-021-06260-z","date_updated":"2022-12-16T15:47:03Z","volume":240,"author":[{"first_name":"David A.","last_name":"Sherman","full_name":"Sherman, David A."},{"full_name":"Lehmann, Tim","last_name":"Lehmann","first_name":"Tim"},{"first_name":"Jochen","full_name":"Baumeister, Jochen","last_name":"Baumeister"},{"first_name":"Dustin R.","last_name":"Grooms","full_name":"Grooms, Dustin R."},{"first_name":"Grant E.","full_name":"Norte, Grant E.","last_name":"Norte"}],"intvolume":"       240","page":"407-420","citation":{"ama":"Sherman DA, Lehmann T, Baumeister J, Grooms DR, Norte GE. Somatosensory perturbations influence cortical activity associated with single-limb balance performance. <i>Experimental Brain Research</i>. 2021;240(2):407-420. doi:<a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>","chicago":"Sherman, David A., Tim Lehmann, Jochen Baumeister, Dustin R. Grooms, and Grant E. Norte. “Somatosensory Perturbations Influence Cortical Activity Associated with Single-Limb Balance Performance.” <i>Experimental Brain Research</i> 240, no. 2 (2021): 407–20. <a href=\"https://doi.org/10.1007/s00221-021-06260-z\">https://doi.org/10.1007/s00221-021-06260-z</a>.","ieee":"D. A. Sherman, T. Lehmann, J. Baumeister, D. R. Grooms, and G. E. Norte, “Somatosensory perturbations influence cortical activity associated with single-limb balance performance,” <i>Experimental Brain Research</i>, vol. 240, no. 2, pp. 407–420, 2021, doi: <a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>.","mla":"Sherman, David A., et al. “Somatosensory Perturbations Influence Cortical Activity Associated with Single-Limb Balance Performance.” <i>Experimental Brain Research</i>, vol. 240, no. 2, Springer Science and Business Media LLC, 2021, pp. 407–20, doi:<a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>.","bibtex":"@article{Sherman_Lehmann_Baumeister_Grooms_Norte_2021, title={Somatosensory perturbations influence cortical activity associated with single-limb balance performance}, volume={240}, DOI={<a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>}, number={2}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Sherman, David A. and Lehmann, Tim and Baumeister, Jochen and Grooms, Dustin R. and Norte, Grant E.}, year={2021}, pages={407–420} }","short":"D.A. Sherman, T. Lehmann, J. Baumeister, D.R. Grooms, G.E. Norte, Experimental Brain Research 240 (2021) 407–420.","apa":"Sherman, D. A., Lehmann, T., Baumeister, J., Grooms, D. R., &#38; Norte, G. E. (2021). Somatosensory perturbations influence cortical activity associated with single-limb balance performance. <i>Experimental Brain Research</i>, <i>240</i>(2), 407–420. <a href=\"https://doi.org/10.1007/s00221-021-06260-z\">https://doi.org/10.1007/s00221-021-06260-z</a>"},"publication_identifier":{"issn":["0014-4819","1432-1106"]},"publication_status":"published","_id":"32450","department":[{"_id":"17"}],"user_id":"46","status":"public","type":"journal_article","title":"Somatosensory perturbations influence cortical activity associated with single-limb balance performance","publisher":"Springer Science and Business Media LLC","date_created":"2022-08-01T19:11:40Z","year":"2021","issue":"2","keyword":["General Neuroscience"],"language":[{"iso":"eng"}],"publication":"Experimental Brain Research"},{"_id":"32437","user_id":"46","department":[{"_id":"17"},{"_id":"172"}],"keyword":["General Neuroscience"],"language":[{"iso":"eng"}],"type":"journal_article","publication":"Experimental Brain Research","status":"public","publisher":"Springer Science and Business Media LLC","date_updated":"2023-03-13T15:18:55Z","date_created":"2022-07-27T07:49:07Z","author":[{"full_name":"Sherman, David A.","last_name":"Sherman","first_name":"David A."},{"last_name":"Lehmann","id":"41584","full_name":"Lehmann, Tim","first_name":"Tim"},{"full_name":"Baumeister, Jochen","id":"46","orcid":"0000-0003-2683-5826","last_name":"Baumeister","first_name":"Jochen"},{"last_name":"Grooms","full_name":"Grooms, Dustin R.","first_name":"Dustin R."},{"first_name":"Grant E.","last_name":"Norte","full_name":"Norte, Grant E."}],"volume":240,"title":"Somatosensory perturbations influence cortical activity associated with single-limb balance performance","doi":"10.1007/s00221-021-06260-z","publication_status":"published","publication_identifier":{"issn":["0014-4819","1432-1106"]},"issue":"2","year":"2021","citation":{"mla":"Sherman, David A., et al. “Somatosensory Perturbations Influence Cortical Activity Associated with Single-Limb Balance Performance.” <i>Experimental Brain Research</i>, vol. 240, no. 2, Springer Science and Business Media LLC, 2021, pp. 407–20, doi:<a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>.","bibtex":"@article{Sherman_Lehmann_Baumeister_Grooms_Norte_2021, title={Somatosensory perturbations influence cortical activity associated with single-limb balance performance}, volume={240}, DOI={<a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>}, number={2}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Sherman, David A. and Lehmann, Tim and Baumeister, Jochen and Grooms, Dustin R. and Norte, Grant E.}, year={2021}, pages={407–420} }","short":"D.A. Sherman, T. Lehmann, J. Baumeister, D.R. Grooms, G.E. Norte, Experimental Brain Research 240 (2021) 407–420.","apa":"Sherman, D. A., Lehmann, T., Baumeister, J., Grooms, D. R., &#38; Norte, G. E. (2021). Somatosensory perturbations influence cortical activity associated with single-limb balance performance. <i>Experimental Brain Research</i>, <i>240</i>(2), 407–420. <a href=\"https://doi.org/10.1007/s00221-021-06260-z\">https://doi.org/10.1007/s00221-021-06260-z</a>","ama":"Sherman DA, Lehmann T, Baumeister J, Grooms DR, Norte GE. Somatosensory perturbations influence cortical activity associated with single-limb balance performance. <i>Experimental Brain Research</i>. 2021;240(2):407-420. doi:<a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>","chicago":"Sherman, David A., Tim Lehmann, Jochen Baumeister, Dustin R. Grooms, and Grant E. Norte. “Somatosensory Perturbations Influence Cortical Activity Associated with Single-Limb Balance Performance.” <i>Experimental Brain Research</i> 240, no. 2 (2021): 407–20. <a href=\"https://doi.org/10.1007/s00221-021-06260-z\">https://doi.org/10.1007/s00221-021-06260-z</a>.","ieee":"D. A. Sherman, T. Lehmann, J. Baumeister, D. R. Grooms, and G. E. Norte, “Somatosensory perturbations influence cortical activity associated with single-limb balance performance,” <i>Experimental Brain Research</i>, vol. 240, no. 2, pp. 407–420, 2021, doi: <a href=\"https://doi.org/10.1007/s00221-021-06260-z\">10.1007/s00221-021-06260-z</a>."},"intvolume":"       240","page":"407-420"},{"_id":"32435","user_id":"46","department":[{"_id":"17"},{"_id":"172"}],"keyword":["General Neuroscience"],"language":[{"iso":"eng"}],"type":"journal_article","publication":"Experimental Brain Research","abstract":[{"text":"<jats:title>Abstract </jats:title><jats:p>Mobile Electroencephalography (EEG) provides insights into cortical contributions to postural control. Although changes in theta (4–8 Hz) and alpha frequency power (8–12 Hz) were shown to reflect attentional and sensorimotor processing during balance tasks, information about the effect of stance leg on cortical processing related to postural control is lacking. Therefore, the aim was to examine patterns of cortical activity during single-leg stance with varying surface stability. EEG and force plate data from 21 healthy males (22.43 ± 2.23 years) was recorded during unipedal stance (left/right) on a stable and unstable surface. Using source-space analysis, power spectral density was analyzed in the theta, alpha-1 (8–10 Hz) and alpha-2 (10–12 Hz) frequency bands. Repeated measures ANOVA with the factors leg and surface stability revealed significant interaction effects in the left (<jats:italic>p</jats:italic> = 0.045, <jats:italic>η</jats:italic><jats:sub><jats:italic>p</jats:italic></jats:sub><jats:sup>2</jats:sup> = 0.13) and right motor clusters (<jats:italic>F</jats:italic> = 16.156; <jats:italic>p</jats:italic> = 0.001, <jats:italic>η</jats:italic><jats:sub><jats:italic>p</jats:italic></jats:sub><jats:sup>2</jats:sup> = 0.41). Furthermore, significant main effects for surface stability were observed for the fronto-central cluster (theta), left and right motor (alpha-1), as well as for the right parieto-occipital cluster (alpha-1/alpha-2). Leg dependent changes in alpha-2 power may indicate lateralized patterns of cortical processing in motor areas during single-leg stance. Future studies may therefore consider lateralized patterns of cortical activity for the interpretation of postural deficiencies in unilateral lower limb injuries.</jats:p>","lang":"eng"}],"status":"public","publisher":"Springer Science and Business Media LLC","date_updated":"2023-03-13T15:19:44Z","date_created":"2022-07-27T07:48:10Z","author":[{"full_name":"Büchel, Daniel","id":"41088","last_name":"Büchel","first_name":"Daniel"},{"last_name":"Lehmann","id":"41584","full_name":"Lehmann, Tim","first_name":"Tim"},{"full_name":"Ullrich, Sarah","last_name":"Ullrich","first_name":"Sarah"},{"last_name":"Cockcroft","full_name":"Cockcroft, John","first_name":"John"},{"first_name":"Quinette","last_name":"Louw","full_name":"Louw, Quinette"},{"last_name":"Baumeister","orcid":"0000-0003-2683-5826","full_name":"Baumeister, Jochen","id":"46","first_name":"Jochen"}],"volume":239,"title":"Stance leg and surface stability modulate cortical activity during human single leg stance","doi":"10.1007/s00221-021-06035-6","publication_status":"published","publication_identifier":{"issn":["0014-4819","1432-1106"]},"issue":"4","year":"2021","citation":{"ama":"Büchel D, Lehmann T, Ullrich S, Cockcroft J, Louw Q, Baumeister J. Stance leg and surface stability modulate cortical activity during human single leg stance. <i>Experimental Brain Research</i>. 2021;239(4):1193-1202. doi:<a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>","ieee":"D. Büchel, T. Lehmann, S. Ullrich, J. Cockcroft, Q. Louw, and J. Baumeister, “Stance leg and surface stability modulate cortical activity during human single leg stance,” <i>Experimental Brain Research</i>, vol. 239, no. 4, pp. 1193–1202, 2021, doi: <a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>.","chicago":"Büchel, Daniel, Tim Lehmann, Sarah Ullrich, John Cockcroft, Quinette Louw, and Jochen Baumeister. “Stance Leg and Surface Stability Modulate Cortical Activity during Human Single Leg Stance.” <i>Experimental Brain Research</i> 239, no. 4 (2021): 1193–1202. <a href=\"https://doi.org/10.1007/s00221-021-06035-6\">https://doi.org/10.1007/s00221-021-06035-6</a>.","short":"D. Büchel, T. Lehmann, S. Ullrich, J. Cockcroft, Q. Louw, J. Baumeister, Experimental Brain Research 239 (2021) 1193–1202.","bibtex":"@article{Büchel_Lehmann_Ullrich_Cockcroft_Louw_Baumeister_2021, title={Stance leg and surface stability modulate cortical activity during human single leg stance}, volume={239}, DOI={<a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>}, number={4}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Büchel, Daniel and Lehmann, Tim and Ullrich, Sarah and Cockcroft, John and Louw, Quinette and Baumeister, Jochen}, year={2021}, pages={1193–1202} }","mla":"Büchel, Daniel, et al. “Stance Leg and Surface Stability Modulate Cortical Activity during Human Single Leg Stance.” <i>Experimental Brain Research</i>, vol. 239, no. 4, Springer Science and Business Media LLC, 2021, pp. 1193–202, doi:<a href=\"https://doi.org/10.1007/s00221-021-06035-6\">10.1007/s00221-021-06035-6</a>.","apa":"Büchel, D., Lehmann, T., Ullrich, S., Cockcroft, J., Louw, Q., &#38; Baumeister, J. (2021). Stance leg and surface stability modulate cortical activity during human single leg stance. <i>Experimental Brain Research</i>, <i>239</i>(4), 1193–1202. <a href=\"https://doi.org/10.1007/s00221-021-06035-6\">https://doi.org/10.1007/s00221-021-06035-6</a>"},"intvolume":"       239","page":"1193-1202"},{"date_created":"2020-11-23T11:14:29Z","title":"Balance task difficulty affects postural sway and cortical activity in healthy adolescents.","issue":"5","year":"2020","external_id":{"pmid":["32328673"]},"language":[{"iso":"eng"}],"publication":"Exp Brain Res","date_updated":"2022-01-06T06:54:27Z","author":[{"first_name":"A","last_name":"Gebel","full_name":"Gebel, A"},{"full_name":"Lehmann, T","last_name":"Lehmann","first_name":"T"},{"first_name":"U","last_name":"Granacher","full_name":"Granacher, U"}],"volume":238,"doi":"10.1007/s00221-020-05810-1","publication_identifier":{"issn":["0014-4819","1432-1106"]},"pmid":"1","citation":{"ieee":"A. Gebel, T. Lehmann, and U. Granacher, “Balance task difficulty affects postural sway and cortical activity in healthy adolescents.,” <i>Exp Brain Res</i>, vol. 238, no. 5, pp. 1323–1333, 2020.","chicago":"Gebel, A, T Lehmann, and U Granacher. “Balance Task Difficulty Affects Postural Sway and Cortical Activity in Healthy Adolescents.” <i>Exp Brain Res</i> 238, no. 5 (2020): 1323–33. <a href=\"https://doi.org/10.1007/s00221-020-05810-1\">https://doi.org/10.1007/s00221-020-05810-1</a>.","ama":"Gebel A, Lehmann T, Granacher U. Balance task difficulty affects postural sway and cortical activity in healthy adolescents. <i>Exp Brain Res</i>. 2020;238(5):1323-1333. doi:<a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>","short":"A. Gebel, T. Lehmann, U. Granacher, Exp Brain Res 238 (2020) 1323–1333.","mla":"Gebel, A., et al. “Balance Task Difficulty Affects Postural Sway and Cortical Activity in Healthy Adolescents.” <i>Exp Brain Res</i>, vol. 238, no. 5, 2020, pp. 1323–33, doi:<a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>.","bibtex":"@article{Gebel_Lehmann_Granacher_2020, title={Balance task difficulty affects postural sway and cortical activity in healthy adolescents.}, volume={238}, DOI={<a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>}, number={5}, journal={Exp Brain Res}, author={Gebel, A and Lehmann, T and Granacher, U}, year={2020}, pages={1323–1333} }","apa":"Gebel, A., Lehmann, T., &#38; Granacher, U. (2020). Balance task difficulty affects postural sway and cortical activity in healthy adolescents. <i>Exp Brain Res</i>, <i>238</i>(5), 1323–1333. <a href=\"https://doi.org/10.1007/s00221-020-05810-1\">https://doi.org/10.1007/s00221-020-05810-1</a>"},"intvolume":"       238","page":"1323-1333","_id":"20457","user_id":"46","department":[{"_id":"17"},{"_id":"172"}],"type":"journal_article","status":"public"},{"year":"2020","issue":"5","title":"Balance task difficulty affects postural sway and cortical activity in healthy adolescents","publisher":"Springer Science and Business Media LLC","date_created":"2022-07-27T07:50:38Z","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Electroencephalographic (EEG) research indicates changes in adults’ low frequency bands of frontoparietal brain areas executing different balance tasks with increasing postural demands. However, this issue is unsolved for adolescents when performing the same balance task with increasing difficulty. Therefore, we examined the effects of a progressively increasing balance task difficulty on balance performance and brain activity in adolescents. Thirteen healthy adolescents aged 16–17 year performed tests in bipedal upright stance on a balance board with six progressively increasing levels of task difficulty. Postural sway and cortical activity were recorded simultaneously using a pressure sensitive measuring system and EEG. The power spectrum was analyzed for theta (4–7 Hz) and alpha-2 (10–12 Hz) frequency bands in pre-defined frontal, central, and parietal clusters of electrocortical sources. Repeated measures analysis of variance (rmANOVA) showed a significant main effect of task difficulty for postural sway (<jats:italic>p</jats:italic> &lt; 0.001; <jats:italic>d</jats:italic> = 6.36). Concomitantly, the power spectrum changed in frontal, bilateral central, and bilateral parietal clusters. RmANOVAs revealed significant main effects of task difficulty for theta band power in the frontal (<jats:italic>p</jats:italic> &lt; 0.001, <jats:italic>d</jats:italic> = 1.80) and both central clusters (left: <jats:italic>p</jats:italic> &lt; 0.001, <jats:italic>d</jats:italic> = 1.49; right: <jats:italic>p</jats:italic> &lt; 0.001, <jats:italic>d</jats:italic> = 1.42) as well as for alpha-2 band power in both parietal clusters (left: <jats:italic>p</jats:italic> &lt; 0.001, <jats:italic>d</jats:italic> = 1.39; right: <jats:italic>p</jats:italic> &lt; 0.001, <jats:italic>d</jats:italic> = 1.05) and in the central right cluster (<jats:italic>p</jats:italic> = 0.005, <jats:italic>d</jats:italic> = 0.92). Increases in theta band power (frontal, central) and decreases in alpha-2 power (central, parietal) with increasing balance task difficulty may reflect increased attentional processes and/or error monitoring as well as increased sensory information processing due to increasing postural demands. In general, our findings are mostly in agreement with studies conducted in adults. Similar to adult studies, our data with adolescents indicated the involvement of frontoparietal brain areas in the regulation of postural control. In addition, we detected that activity of selected brain areas (e.g., bilateral central) changed with increasing postural demands.</jats:p>"}],"publication":"Experimental Brain Research","keyword":["General Neuroscience"],"language":[{"iso":"eng"}],"page":"1323-1333","intvolume":"       238","citation":{"short":"A. Gebel, T. Lehmann, U. Granacher, Experimental Brain Research 238 (2020) 1323–1333.","bibtex":"@article{Gebel_Lehmann_Granacher_2020, title={Balance task difficulty affects postural sway and cortical activity in healthy adolescents}, volume={238}, DOI={<a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>}, number={5}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Gebel, Arnd and Lehmann, Tim and Granacher, Urs}, year={2020}, pages={1323–1333} }","mla":"Gebel, Arnd, et al. “Balance Task Difficulty Affects Postural Sway and Cortical Activity in Healthy Adolescents.” <i>Experimental Brain Research</i>, vol. 238, no. 5, Springer Science and Business Media LLC, 2020, pp. 1323–33, doi:<a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>.","apa":"Gebel, A., Lehmann, T., &#38; Granacher, U. (2020). Balance task difficulty affects postural sway and cortical activity in healthy adolescents. <i>Experimental Brain Research</i>, <i>238</i>(5), 1323–1333. <a href=\"https://doi.org/10.1007/s00221-020-05810-1\">https://doi.org/10.1007/s00221-020-05810-1</a>","chicago":"Gebel, Arnd, Tim Lehmann, and Urs Granacher. “Balance Task Difficulty Affects Postural Sway and Cortical Activity in Healthy Adolescents.” <i>Experimental Brain Research</i> 238, no. 5 (2020): 1323–33. <a href=\"https://doi.org/10.1007/s00221-020-05810-1\">https://doi.org/10.1007/s00221-020-05810-1</a>.","ieee":"A. Gebel, T. Lehmann, and U. Granacher, “Balance task difficulty affects postural sway and cortical activity in healthy adolescents,” <i>Experimental Brain Research</i>, vol. 238, no. 5, pp. 1323–1333, 2020, doi: <a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>.","ama":"Gebel A, Lehmann T, Granacher U. Balance task difficulty affects postural sway and cortical activity in healthy adolescents. <i>Experimental Brain Research</i>. 2020;238(5):1323-1333. doi:<a href=\"https://doi.org/10.1007/s00221-020-05810-1\">10.1007/s00221-020-05810-1</a>"},"publication_identifier":{"issn":["0014-4819","1432-1106"]},"publication_status":"published","doi":"10.1007/s00221-020-05810-1","date_updated":"2022-07-27T07:53:03Z","volume":238,"author":[{"first_name":"Arnd","full_name":"Gebel, Arnd","last_name":"Gebel"},{"first_name":"Tim","last_name":"Lehmann","full_name":"Lehmann, Tim"},{"last_name":"Granacher","full_name":"Granacher, Urs","first_name":"Urs"}],"status":"public","type":"journal_article","_id":"32442","user_id":"41584"},{"page":"2179-2188","intvolume":"       238","citation":{"apa":"Strote, C., Gölz, C. J., Stroehlein, J. K., Haase, F. K., Koester, D., Reinsberger, C., &#38; Vieluf, S. (2020). Effects of force level and task difficulty on force control performance in elderly people. <i>Experimental Brain Research</i>, <i>238</i>(10), 2179–2188. <a href=\"https://doi.org/10.1007/s00221-020-05864-1\">https://doi.org/10.1007/s00221-020-05864-1</a>","short":"C. Strote, C.J. Gölz, J.K. Stroehlein, F.K. Haase, D. Koester, C. Reinsberger, S. Vieluf, Experimental Brain Research 238 (2020) 2179–2188.","mla":"Strote, Caren, et al. “Effects of Force Level and Task Difficulty on Force Control Performance in Elderly People.” <i>Experimental Brain Research</i>, vol. 238, no. 10, Springer Science and Business Media LLC, 2020, pp. 2179–88, doi:<a href=\"https://doi.org/10.1007/s00221-020-05864-1\">10.1007/s00221-020-05864-1</a>.","bibtex":"@article{Strote_Gölz_Stroehlein_Haase_Koester_Reinsberger_Vieluf_2020, title={Effects of force level and task difficulty on force control performance in elderly people}, volume={238}, DOI={<a href=\"https://doi.org/10.1007/s00221-020-05864-1\">10.1007/s00221-020-05864-1</a>}, number={10}, journal={Experimental Brain Research}, publisher={Springer Science and Business Media LLC}, author={Strote, Caren and Gölz, Christian Johannes and Stroehlein, Julia Kristin and Haase, Franziska Katharina and Koester, Dirk and Reinsberger, Claus and Vieluf, Solveig}, year={2020}, pages={2179–2188} }","ama":"Strote C, Gölz CJ, Stroehlein JK, et al. Effects of force level and task difficulty on force control performance in elderly people. <i>Experimental Brain Research</i>. 2020;238(10):2179-2188. doi:<a href=\"https://doi.org/10.1007/s00221-020-05864-1\">10.1007/s00221-020-05864-1</a>","chicago":"Strote, Caren, Christian Johannes Gölz, Julia Kristin Stroehlein, Franziska Katharina Haase, Dirk Koester, Claus Reinsberger, and Solveig Vieluf. “Effects of Force Level and Task Difficulty on Force Control Performance in Elderly People.” <i>Experimental Brain Research</i> 238, no. 10 (2020): 2179–88. <a href=\"https://doi.org/10.1007/s00221-020-05864-1\">https://doi.org/10.1007/s00221-020-05864-1</a>.","ieee":"C. Strote <i>et al.</i>, “Effects of force level and task difficulty on force control performance in elderly people,” <i>Experimental Brain Research</i>, vol. 238, no. 10, pp. 2179–2188, 2020, doi: <a href=\"https://doi.org/10.1007/s00221-020-05864-1\">10.1007/s00221-020-05864-1</a>."},"publication_identifier":{"issn":["0014-4819","1432-1106"]},"publication_status":"published","doi":"10.1007/s00221-020-05864-1","date_updated":"2023-02-06T09:31:17Z","volume":238,"author":[{"full_name":"Strote, Caren","last_name":"Strote","first_name":"Caren"},{"last_name":"Gölz","orcid":"0000-0003-0536-1481","full_name":"Gölz, Christian Johannes","id":"33725","first_name":"Christian Johannes"},{"last_name":"Stroehlein","full_name":"Stroehlein, Julia Kristin","first_name":"Julia Kristin"},{"last_name":"Haase","full_name":"Haase, Franziska Katharina","first_name":"Franziska Katharina"},{"last_name":"Koester","full_name":"Koester, Dirk","first_name":"Dirk"},{"first_name":"Claus","id":"48978","full_name":"Reinsberger, Claus","last_name":"Reinsberger"},{"first_name":"Solveig","last_name":"Vieluf","full_name":"Vieluf, Solveig"}],"status":"public","type":"journal_article","_id":"30120","department":[{"_id":"35"},{"_id":"17"},{"_id":"176"}],"user_id":"33213","year":"2020","issue":"10","title":"Effects of force level and task difficulty on force control performance in elderly people","publisher":"Springer Science and Business Media LLC","date_created":"2022-02-25T12:03:03Z","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>As the proportion of people over 60 years of age rises continuously in westernized societies, it becomes increasingly important to better understand aging processes and how to maintain independence in old age. Fine motor tasks are essential in daily living and, therefore, necessary to maintain. This paper extends the existing literature on fine motor control by manipulating the difficulty of a force maintenance task to characterize performance optima for elderly. Thirty-seven elderly (<jats:italic>M</jats:italic> = 68.00, SD = 4.65) performed a force control task at dynamically varying force levels, i.e. randomly changing every 3 s between 10%, 20%, and 30% of the individual’s maximum voluntary contraction (MVC). This task was performed alone or with one or two additional tasks to increase task difficulty. The force control characteristics accuracy, variability, and complexity were analyzed. Lowest variability was observed at 20%. Accuracy and complexity increased with increasing force level. Overall, increased task difficulty had a negative impact on task performance. Results support the assumption, that attention control has a major impact on force control performance in elderly people. We assume different parameters to have their optimum at different force levels, which remain comparably stable when additional tasks are performed. The study contributes to a better understanding of how force control is affected in real-life situations when it is performed simultaneously to other cognitive and sensory active and passive tasks.</jats:p>"}],"publication":"Experimental Brain Research","keyword":["General Neuroscience"],"language":[{"iso":"eng"}]}]