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Our goal is to study the effects of tennis practice in pre-pubescent boys on bone remodeling, by means of enzyme activity involved in balance of matrix remodeling (MMP2 and MMP9).Mineral bone density has been found higher in the dominant arm (P<0.0001) as well as MMP2 and MMP9 levels in plasma (P<0.05).Tennis practice in children increases bone remodeling, which can be assessed by MMP dosage,...
Comparer la capacité oxydative musculaire des enfants et des adultes à partir de la mesure non invasive de la vitesse de resynthèse de la phosphocréatine (PCr) après un protocole d’effort standardisé.Sept garçons et dix hommes ont effectué un exercice de flexion des doigts de trois minutes réalisé à une fréquence de 0,7Hz contre un poids ajusté à 15 % de la force maximale volontaire. La capacité oxydative...
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