Intermuscular Coordination in the Power Clean Exercise: Comparison between Olympic Weightlifters and Untrained Individuals—A Preliminary Study
| Autor: | João R Vaz, Paulo F. Correia, Pedro Pezarat-Correia, Maria J. Valamatos, António Veloso, Paulo D. G. Santos |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
medicine.medical_specialty
electromyography Strength training Sports science Electromyography lcsh:Chemical technology Biochemistry Article Analytical Chemistry 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation muscle coordination muscle synergies medicine strength training Humans lcsh:TP1-1185 Lack of knowledge Electrical and Electronic Engineering Muscle Skeletal Muscle synergy Exercise Instrumentation neural adaptations biology medicine.diagnostic_test Athletes 030229 sport sciences biology.organism_classification Adaptation Physiological Atomic and Molecular Physics and Optics Motor coordination Initial phase Psychology 030217 neurology & neurosurgery Sports |
| Zdroj: | Sensors Volume 21 Issue 5 Sensors, Vol 21, Iss 1904, p 1904 (2021) Sensors (Basel, Switzerland) |
| ISSN: | 1424-8220 |
| DOI: | 10.3390/s21051904 |
| Popis: | Muscle coordination in human movement has been assessed through muscle synergy analysis. In sports science, this procedure has been mainly applied to the comparison between highly trained and unexperienced participants. However, the lack of knowledge regarding strength training exercises led us to study the differences in neural strategies to perform the power clean between weightlifters and untrained individuals. Synergies were extracted from electromyograms of 16 muscles of ten unexperienced participants and seven weightlifters. To evaluate differences, we determined the pairwise correlations for the synergy components and electromyographic profiles. While the shape of activation patterns presented strong correlations across participants of each group, the weightings of each muscle were more variable. The three extracted synergies were shifted in time with the unexperienced group anticipating synergy #1 (−2.46 ± 18.7% p < 0.001) and #2 (−4.60 ± 5.71% 0.001) and delaying synergy #3 (1.86 ± 17.39% p = 0.01). Moreover, muscle vectors presented more inter-group variability, changing the composition of synergy #1 and #3. These results may indicate an adaptation in intermuscular coordination with training, and athletes in an initial phase of training should attempt to delay the hip extension (synergy #1), as well as the upper-limb flexion (synergy #2). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |