| Autor: |
Carolina Vila-Chã, Antonio Bovolini, Cristiana Francisco, Ana R. Costa-Brito, Cláudia Vaz, María Rua-Alonso, José Antonio de Paz, Taian Vieira, Goncalo V. Mendonca |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Frontiers in Sports and Active Living, Vol 5 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2624-9367 |
| DOI: |
10.3389/fspor.2023.1273152 |
| Popis: |
IntroductionEccentric exercise has often been reported to result in muscle damage, limiting the muscle potential to produce force. However, understanding whether these adverse consequences extend to a broader, functional level is of apparently less concern. In this study, we address this issue by investigating the acute and delayed effects of supramaximal isotonic eccentric exercise on neuromuscular function and motor performance of knee extensors during tasks involving a range of strength profiles, proprioception, and balance.MethodsFifteen healthy volunteers (23.2 ± 2.9 years old) performed a unilateral isotonic eccentric exercise of the knee extensors of their dominant lower limb (4 × 10 reps at 120% of one Repetition Maximum (1RM)). The maximum voluntary isometric contraction (MVC), rate of force development (RFD), force steadiness of the knee extensors, as well as knee joint position sense and mediolateral (MLI) and anteroposterior stability (API) of the dominant lower limb, were measured pre-, immediately, and 24 h after the eccentric exercise. The EMG amplitude of the vastus medialis (VM) and biceps femoris (BF) were concomitantly evaluated.ResultsMVC decreased by 17.9% immediately after exercise (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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