Eccentric strength and endurance in patients with unilateral intermittent claudication
Clinics
;
64(4): 319-322, 2009. tab
Artigo
em Inglês
| LILACS
| ID: lil-511933
ABSTRACT
OBJECTIVE:
To analyze concentric and eccentric strength and endurance in patients with unilateral intermittent claudication.INTRODUCTION:
Basic motor tasks are composed of concentric, isometric, and eccentric actions, which are related and contribute to physical performance. In previous studies of patients with intermittent claudication, the disease-related reduction in concentric and isometric muscular strength and endurance resulted in poorer walking performance. To date, no study has evaluated eccentric muscle action in patients with intermittent claudication.METHODS:
Eleven patients with unilateral intermittent claudication performed isokinetic concentric and eccentric actions at the ankle joints to assess peak torque and total work in both symptomatic and asymptomatic legs.RESULTS:
Concentric peak torque and total work were lower in the symptomatic than in the asymptomatic leg (80 ± 32 vs. 95 ± 41 N/m, P = 0.01; 1479 ± 667 vs. 1709 ± 879 J, P = 0.03, respectively). There were no differences in eccentric peak torque and total work between symptomatic and asymptomatic legs (96 ± 30 vs. 108 ± 48 N/m; 1852 ± 879 vs. 1891 ± 755 J, respectively).CONCLUSION:
Strength and endurance in the symptomatic leg were lower during concentric compared to eccentric action. Future studies are recommended to investigate the mechanisms underlying these responses and to analyze the effects of interventions to improve concentric strength and endurance on functional limitations in patients with intermittent claudication.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Resistência Física
/
Força Muscular
/
Claudicação Intermitente
/
Contração Muscular
Limite:
Humanos
/
Masculino
Idioma:
Inglês
Revista:
Clinics
Assunto da revista:
Medicina
Ano de publicação:
2009
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade de São Paulo/BR
/
University of Pernambuco/BR
/
University of São Paulo/BR
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