| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 492.32 KB | Adobe PDF |
Orientador(es)
Resumo(s)
The purpose of this study was to compare relative adaptations between two set-termination strategies (momentary muscular failure vs. repetitions in reserve) using a unilateral within-participant design under ecologically realistic resistance-training conditions. Nineteen trained subjects (11 men, eight women; mean age: 22.3 6 3.9 years; body mass: 69.9 6 10.3 kg) completed an 8-week unilateral intervention. Each subject performed leg extensions, with one limb randomly assigned to the FAIL protocol and the contralateral limb to the repetitions-in-reserve (RIR) protocol. Muscle thickness (ultrasound) of the knee extensors and 1-repetition maximum strength were assessed pre- and postintervention and analyzed using Bayesian linear mixed-effect models. Estimated between-protocol differences for hypertrophy were negligible (knee extensors: 20.019 cm [20.094 to 0.054]), as were differences for 1-repetition maximum strength (knee extensors: 0.198 kg [21.87 to 2.6]). Secondary analyses using standardized mean differences also suggested no clear overall advantage for either protocol. These findings suggest that resistance training performed with a 1- to 3-RIR may produce adaptations comparable with training to momentary muscular failure in knee extensors under applied training conditions. Strength and conditioning professionals may therefore consider RIR-based strategies as a practical approach to manage fatigue while maintaining training effectiveness.
Descrição
Palavras-chave
repetitions-in-reserve muscular adaptations autoregulation set termination
Contexto Educativo
Citação
Vasconcelos, T., Ruivo, A.R., Refalo, M. C., Chaves Lucas, G., Vasconcelos, P. R., Brito, J. P., Vilaça-Alves, J., & Oliveira, R. (2026). Comparative Adaptations to Different Leg Extension Set-termination Strategies in Trained Men and Women: A Unilateral Within-Participant Study. Journal of strength and conditioning research, https://doi.org/10.1519/JSC.0000000000005494