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- Title
Evaluating the Asymmetry of Muscle Activation and Strength in Paralympic Powerlifting Athletes.
- Authors
Santos, Leonardo dos; Aidar, Felipe J.; Souza, Rafael Luiz Mesquita; de Matos, Dihogo Gama; Cataldi, Stefania; Greco, Gianpiero; Getirana-Mota, Márcio; Marçal, Anderson Carlos; Souza, Lucio Marques Vieira; Santos, Jymmys Lopes dos; Almeida-Neto, Paulo Francisco de; Cabral, Breno Guilherme de Araújo Tinoco; Badicu, Georgian; Nobari, Hadi; Souza, Raphael Frabrício de
- Abstract
Background: Strength training is a complex task, as it requires a combination of many variables. In paralympic powerlifting (PP) asymmetries for the evaluation of activation, and static force indicators have been increasingly studied. Objective: To investigate the asymmetries in the strength and muscle activation indicators, before and after a training session of PP athletes. Methodology: Twelve elite athletes from the PP participated in the study, and asymmetry was evaluated through surface electromyography (sEMG) and static strength indicators. Evaluations were made before and after a protocol of five series of five repetitions (5 × 5), with 80% of 1-Maximum Repetition (1RM). Results: In the pectoral muscles, there were differences in the non-dominant limbs between the before and after in the sEMG. There were differences in the pectoralis muscle in the non-dominant limb between moments before (110.75 ± 59.52%) and after (130.53 ± 98.48%, p < 0.001), and there was no difference in triceps activation. In the Maximum Isometric Strength (MIF), there was a difference in the non-dominant limb between before (710.36 ± 129.36) and after (620.27 ± 69.73; p < 0.030). There was a difference before in the dominant (626.89 ± 120.16; 95% CI 550.55–703.24) and non-dominant (710.36 ± 129.36; p = 0.011) limbs. There was no difference in time to MIF. Conclusion: PP athletes showed small levels of asymmetry before and after training, and adaptation to training tends to promote fewer asymmetries.
- Subjects
MUSCLE strength; ATHLETES with disabilities; PECTORALIS muscle; ELITE athletes; STRENGTH training; POWERLIFTING
- Publication
European Journal of Investigation in Health, Psychology & Education (EJIHPE), 2023, Vol 13, Issue 9, p1645
- ISSN
2174-8144
- Publication type
Article
- DOI
10.3390/ejihpe13090119