The effects of high-intensity functional training on muscle damage and recovery capacity in trained individuals

  • Amanda Ehmke School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
  • Paula Machado Binhardi School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
  • Arthur Zecchin Ribeirão Preto Medical School, Department of Physical Therapy, University of São Paulo, Ribeirão Preto, Brazil
  • Rodrigo Aquino LabSport, Department of Sports, Center of Physical Education and Sports, Federal University of Espírito Santo, Vitoria, Brazil
  • Enrico Fuini Puggina School of Physical Education and Sport of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
DOI: https://doi.org/10.33155/j.ramd.2023.05.001
Keywords: Fatiga; Condición física; Recuperación; Entrenamiento intermitente. Fatigue; Physical fitness; Recovery; Intermittent training. Fadiga; Aptidão física; Recuperação; Treinamento intermitente.

Abstract

Objective: High-Intensity Functional Training (HIFT) is nowadays widely used due to low time demand and efficiency to improve performance and health. The dynamics of recovery of muscle damage and physical fitness after a HIFT in individuals with different fitness status provide a practical information for coaches and practitioners. Therefore, the aim of this study was to verify the muscle damage and performance recovery responses after an acute HIFT session in healthy young men with different fitness status.
Method: Sixteen recreationally trained participants (age: 23.4 ± 2.4 y; body mass index: 24.6 ± 2.4 kg·m-2; 1RM back squat: 120.1 ± 19.9 kg) were divided into two groups according to their maximum strength (higher-trained [HT] and lower-trained group [LT]), and performed a single HIFT session. Muscle damage (creatine kinase [CK] and lactate dehydrogenase [LDH]) and physical fitness tests (strength, power, and oxygen consumption) were analyzed before, immediately after, 24h and 48h after the HIFT session. The internal training load for both groups was equalized using the Rating of Perceived Exertion method (RPE) and the percentage 1 repetition maximum (1RM).
Results: Biochemical markers and performance indicators showed that both groups suffered exercise-induced muscle damage. There was a trend towards faster muscle damage recovery in HT group.
Conclusions: HT group showed higher muscle damage recovery compared to the LT group. A longer recovery time to complete muscle recovery might be expected in the LT group.

Published
2023-08-22
Issue
Vol. 16 No. 1-2 (2023): August 2023
Section
Originals
Page/s
1-7
DOI
https://doi.org/10.33155/j.ramd.2023.05.001