Muscle coordination during archery shooting: A comparison of archers with different skill levels
| Autor: | Dongmei Luo, Baifa Zhang, Xinglong Zhou |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Motor module
medicine.medical_specialty Motor primitives medicine.diagnostic_test Skill level Physical Therapy Sports Therapy and Rehabilitation General Medicine Electromyography Motor coordination Physical medicine and rehabilitation medicine Orthopedics and Sports Medicine Muscle synergy Psychology |
| Zdroj: | European Journal of Sport Science. 23:54-61 |
| ISSN: | 1536-7290 1746-1391 |
| DOI: | 10.1080/17461391.2021.2014573 |
| Popis: | 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 factorization. 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 optimizing the temporal coordination of the follow-through phase. |
| Databáze: | OpenAIRE |
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