Avaliação do índice de fadiga muscular de flexores e extensores de joelho em indivíduos ativos e sedentários

Raynara Fonsêca dos Santos William Monteiro de Freitas Júnior Rogério Olmedija de Araújo About the authors

ABSTRACT

Objective:

To evaluate the muscular fatigue of flexors and knee extensors in active and sedentary individuals.

Methodology:

The International Physical Activity Questionnaire (IPAQ), Physical Activity Alert Questionnaire (PAR-Q) and functional clinical examination were performed in order to guarantee safety during Isokinetic Dynamometry, performed in 3 sets of 5 repetitions of the knee flexion and extension movements, at speeds 120º/s, 180º/s and 240º/s.

Results:

Sedentary individuals had a higher fatigue index, being this difference significant in the left hamstrings.

Conclusion:

It is important to determine the fatigue index, since the fatigue of the muscles directly interferes with the muscular performance and the appearance of injuries.

Keywords:
Knee; Fatigue; Quadriceps muscle; Hamstring muscles

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