$Plasticity of muscle synergies through fractionation and merging during development and training of human runners$

Medicine and Health

Plasticity of muscle synergies through fractionation and merging during development and training of human runners

V. C. K. Cheung, B. M. F. Cheung, et al.

This exciting research by Vincent C. K. Cheung, Ben M. F. Cheung, Janet H. Zhang, Zoe Y. S. Chan, Sophia C. W. Ha, Chao-Ying Chen, and Roy T. H. Cheung explores the evolution of locomotor synergies in running across different age groups and training levels. The study reveals how muscle coordination changes from childhood to elite marathoners, shedding light on the mechanisms of motor development and efficiency in running.

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Abstract

This research investigates how locomotor synergies change during development and training by studying running in preschoolers and diverse adults, from sedentary individuals to elite marathoners (63 subjects total). During development, synergies fractionate into units with fewer muscles. Adult training leads to synergy merging, with specific merging patterns correlating with enhanced or reduced running efficiency. Fractionation and merging are proposed as mechanisms for adapting early motor modules to changing limb biomechanics and sensorimotor training.

Publisher

Nature Communications

Published On

Aug 31, 2020

Authors

Vincent C. K. Cheung, Ben M. F. Cheung, Janet H. Zhang, Zoe Y. S. Chan, Sophia C. W. Ha, Chao-Ying Chen, Roy T. H. Cheung

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