Inter- and intrasubject similarity of muscle synergies during bench press with slow and fast velocity
| Autor: | Afshin Samani, Mathias Vedsø Kristiansen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Male
Adult Strength training Physical Therapy Sports Therapy and Rehabilitation Electromyography Bench press 03 medical and health sciences Young Adult 0302 clinical medicine Similarity (network science) Physiology (medical) medicine Journal Article Humans Muscle synergy Muscle Skeletal Simulation Neural control mechanism Mathematics Time under tension medicine.diagnostic_test Blood Flow Velocity/physiology Muscle coordination Tempo manipulation 030229 sport sciences Exercise Therapy/methods Exercise Therapy Muscle Skeletal/physiology Neurology (clinical) Biological system 030217 neurology & neurosurgery Blood Flow Velocity Movement velocity |
| Zdroj: | Samani, A & Kristiansen, M 2018, ' Inter-and intrasubject similarity of muscle synergies during bench press with slow and fast velocity ', Motor Control, vol. 22, no. 1, pp. 100-115 . https://doi.org/10.1123/mc.2016-0026 |
| DOI: | 10.1123/mc.2016-0026 |
| Popis: | We investigated the effect of low and high bar velocity on inter- and intrasubject similarity of muscle synergies during bench press. A total of 13 trained male subjects underwent two exercise conditions: a slow- and a fast-velocity bench press. Surface electromyography was recorded from 13 muscles, and muscle synergies were extracted using a nonnegative matrix factorization algorithm. The intrasubject similarity across conditions and intersubject similarity within conditions were computed for muscle synergy vectors and activation coefficients. Two muscle synergies were sufficient to describe the dataset variability. For the second synergy activation coefficient, the intersubject similarity within the fastvelocity condition was greater than the intrasubject similarity of the activation coefficient across the conditions. An opposite pattern was observed for the first muscle synergy vector. We concluded that the activation coefficients are robust within conditions, indicating a robust temporal pattern of muscular activity across individuals, but the muscle synergy vector seemed to be individually assigned. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|