Motor cortex fatigue in sports measured by transcranial magnetic double stimulation

Article Abstract:

This study uses transcranial magnetic double stimulation to investigate fatigue in the motor cortex after intense anaerobic strain in male subjects. Results indicate that intracortical facilitation is significantly reduced in the active muscles and that interneuronal circuits in the motor cortex exhibit decreased excitability after exhaustive exercise.

Germany, Muscles, Fatigue, Motor cortex, Neuromuscular transmission, GABA

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Longitudinal changes in young people's short-term output

Article Abstract:

This study examines the effect of changes in age, sexual maturation, body size, and skin-fold thickness on the short-term power output of adolescent boys and girls. Despite significant gender differences in longitudinal growth, thickness of skin folds and body mass were the best anthropometric predictors of power output.

United Kingdom, Teenagers, Youth, Growth, Human growth, Human development, Sex differences

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Left ventricular contractility and function at peak aerobic and anaerobic exercises

Article Abstract:

Most people should be very careful when exercising anaerobically. In a study of 22 healthy volunteers, all-out anaerobic exercise did not increase left ventricular volume, ejection fraction, stroke volume, and cardiac output as expected.

Heart

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