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Whereas absolute slope values (|\u03b2|) of the linear fit to the power spectrum of the digitized movements (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001, \u03b7<jats:sup>2<\/jats:sup>\u2009=\u2009.676) were systematically smaller in treadmill walking than in repetitive punching, sample entropy measures (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001, \u03b7<jats:sup>2<\/jats:sup>\u2009=\u2009.570) were larger reflecting the former task being more automated but also less predictable than the latter task. In both tasks, increased speeds enhanced automatized control (<jats:italic>p<\/jats:italic>\u2009&lt;\u2009.001, \u03b7<jats:sup>2<\/jats:sup>\u2009=\u2009.475) but reduced movement predictability (<jats:italic>p<\/jats:italic>\u2009=\u2009.008, \u03b7<jats:sup>2<\/jats:sup>\u2009=\u2009.225). The latter findings are potentially relevant when evaluating effects of task demand changes in clinical contexts.<\/jats:p>","DOI":"10.1123\/mc.2021-0047","type":"journal-article","created":{"date-parts":[[2021,11,12]],"date-time":"2021-11-12T07:19:26Z","timestamp":1636701566000},"page":"15-35","source":"Crossref","is-referenced-by-count":2,"title":["Increased Speed Elicited More Automatized but Less Predictable Control in Cyclical Arm and Leg Movements"],"prefix":"10.1123","volume":"26","author":[{"given":"Werner A.F.","family":"van de Ven","sequence":"first","affiliation":[{"name":"FysioHolland Twente, Enschede, The Netherlands"},{"name":"Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jurjen","family":"Bosga","sequence":"additional","affiliation":[{"name":"Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wim","family":"Hullegie","sequence":"additional","affiliation":[{"name":"Physiotherapy Practice Hullegie and Richter MSC, Enschede, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wiebe C.","family":"Verra","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Medisch Spectrum Twente, Enschede, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruud G.J.","family":"Meulenbroek","sequence":"additional","affiliation":[{"name":"Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"key":"r1","series-title":"Journal of Biomechanics,","doi-asserted-by":"publisher","first-page":"181","DOI":"10.1016\/j.jbiomech.2018.05.006","article-title":"Associations between trunk postural control in walking and unstable sitting at various levels of task demand","volume":"75,","author":"Acasio, J.C.","year":"2018","unstructured":"Acasio, J.C., Butowicz, C.M., Golyski, P.R., Nussbaum, M.A., & Hendershot, B.D. 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