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- Title
Muscle coordination during archery shooting: A comparison of archers with different skill levels.
- Authors
Baifa, Zhang; Xinglong, Zhou; Dongmei, Luo
- Abstract
This study aimed to compare the muscle coordination of different skill level archers by using the concept of muscle synergies. A total of 28 archers (8 elite, 12 mid-level, and 8 novices) were recruited to participate in this study. Electromyography (EMG) signals were recorded using a 13-channel (Trigno EMG sensor, Delsys Inc., USA) wireless surface EMG system. Fundamental synergies containing time-dependent activation coefficients (motor primitives) and time-invariant muscle weightings (motor modules) were extracted using non-negative matrix factorisation. We observed three fundamental synergies in all groups during archery shooting. The results showed that the centre of activity of the motor primitive of synergy-3 occurred earlier in novice archers than in elite and mid-level archers, which was followed by an increase in the averaged frequency of overlaps. The results also showed a slight difference in the relative muscle contribution of the motor module of synergy-2 and -3 within different groups. These findings revealed that the number of muscle synergies did not depend on the proficiency level; however, more expert archers improved timing management better than less experienced ones. Therefore, we suggest that coaches and athletes focus on optimising the temporal coordination of the follow-through phase.
- Subjects
SKELETAL muscle physiology; MUSCLE contraction; SHOOTING (Sports); AMATEUR athletes; ARCHERY; DESCRIPTIVE statistics; ELECTROMYOGRAPHY; BIOMECHANICS; TIME management; MOTOR ability
- Publication
European Journal of Sport Science, 2023, Vol 23, Issue 1, p54
- ISSN
1746-1391
- Publication type
Article
- DOI
10.1080/17461391.2021.2014573