Quadriceps femoris muscle resistance to fatigue using an electrically elicited fatigue test following intense endurance exercise training.
Phys Ther
; 74(10): 930-9; discussion 939-42, 1994 Oct.
Article
em En
| MEDLINE
| ID: mdl-8090844
ABSTRACT
BACKGROUND AND PURPOSE:
Electrical stimulation has been used to assess skeletal muscle resistance to fatigue. The purpose of this study was to test the hypothesis that 12 weeks of intense endurance exercise training on a bicycle ergometer would reduce the percentage of decline in quadriceps femoris muscle torque during an electrically elicited fatigue test. SUBJECTS ANDMETHODS:
Eleven nondisabled subjects performed 12 weeks of high-intensity endurance exercise training, and 6 subjects served as controls and did not exercise. Two electrically elicited fatigue tests, one with and one without prior voluntary fatiguing exercise, were administered to each subject before and after the 12-week training period.RESULTS:
The percentage of decline in peak torque of the quadriceps femoris muscle over 50 electrically elicited muscle contractions did not change as a result of endurance exercise training, despite significant improvements in maximal oxygen consumption and quadriceps femoris muscle endurance. The recovery of maximal isometric torque immediately after exhausting voluntary exercise followed by electrical stimulation was significantly greater after 12 weeks of intense exercise training. CONCLUSION ANDDISCUSSION:
The percentage of decline in peak torque during an electrically elicited fatigue test does not detect improvements in quadriceps femoris muscle endurance induced by endurance exercise training. The percentage of initial torque recovered immediately after fatiguing exercise, however, is improved by endurance training. [Sinacore Dr, Jacobson RB, Delitto A. Quadriceps femoris muscle resistance to fatigue using an electrically elicited fatigue test following intense endurance exercise training.
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Base de dados:
MEDLINE
Assunto principal:
Educação Física e Treinamento
/
Resistência Física
/
Estimulação Elétrica
/
Músculos
Tipo de estudo:
Clinical_trials
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Phys Ther
Ano de publicação:
1994
Tipo de documento:
Article