Learning complex upper-limb movements through practicing movement elements |
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| Affiliation: | 1. Centre for Cognitive and Brain Sciences, Indian Institute of Technology Gandhinagar, Palaj 382355, India;2. Department of Mechanical Engineering, Indian Institute of Technology Gandhinagar, Palaj 382355, India;1. Department of Human Movement Science, Nelson Mandela University, Port Elizabeth, South Africa;2. Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences and Institute Brain and Behavior Amsterdam (iBBA), The Netherlands;3. Faculty of Sports and Nutrition, Amsterdam University of Applied Sciences, Amsterdam, The Netherlands;1. Clinical sciences for health professionals, master Clinical Health Sciences, Faculty of Medicine Utrecht University, Utrecht, the Netherlands;2. Behavioural Science Institute (BSI), Radboud University, Nijmegen, the Netherlands;3. School of Behavioural and Health Sciences, Australian Catholic University, Melbourne, VIC, Australia;1. Department of Physical Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran;2. Physical Education Department, Humanities & Social Sciences Faculty, Ardakan University, Ardakan, Iran;1. RITMO Centre for Interdisciplinary Studies in Rhythm, Time and Motion, University of Oslo, P.O. Box 1133, Blindern, Oslo 0318, Norway;2. Department of Psychology, University of Oslo, P.O. Box 1094, Blindern, Oslo 0317, Norway;3. Department of Psychology, Oslo New University College, Lovisenberggata 13, Oslo 0456, Norway;4. Department of Musicology, University of Oslo, P.O. Box 1017, Blindern, Oslo 0315, Norway;1. Neuroplasticity, Imagery, and Motor Behaviour Laboratory, Department of Psychology, University of British Columbia, Okanagan Campus, Kelowna V1V1V7, British Columbia, Canada;2. Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver V6T1Z3, British Columbia, Canada;1. School of Biological Sciences, University of Utah, Salt Lake City, UT 84112, USA;2. Department of Mechanical Engineering, University of Utah, Salt Lake City, UT 84112, USA |
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| Abstract: | Upper-limb complex movements constitute a major part of our daily activities. Research shows complex movements are generated by sequences of movement elements represented by a unimodal bell-shaped velocity curve. We utilized this understanding in the field of motor skill acquisition and hypothesized that practicing a movement element of a complex movement trajectory will facilitate the performance on the respective complex movement trajectory. To test this, we designed an experiment where the control group learned a full complex trajectory, whereas the two elemental groups learned two different movement elements of the complex trajectory. The two main outcome measures explaining the performance were accuracy and speed. The elemental groups, after training on movement elements, significantly improved their speed and accuracy when tested on the full complex trajectory. The result illustrated that training on a movement element of a complex trajectory benefited the performance of the full complex trajectory. The two elemental groups showed similar improvements in the performance of the complex motor skill, despite obtaining training on different movement elements of the same complex movement. The findings show that complex movements can be learned by practicing their movement elements. |
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