Lynch T, Kinirons M T, O'Callaghan D, Ismail S, Brady H R, Horgan J H
Department of Cardiology, Beaumont Hospital, Dublin, Ireland.
Can J Sport Sci. 1992 Jun;17(2):110-3.
We have previously reported dramatic changes in heart rate and blood biochemistry in older men during and shortly after competitive squash. In this study we sought to determine whether these changes are attenuated or exaggerated during tournament matches played in rapid succession. Ten veteran (greater than 45 yrs) players were studied during three competitive matches played over a 36-hr period. Squash was associated with significant changes in heart rate and circulating concentrations of catecholamines, lactate, free fatty acids, and potassium. These changes were of equal magnitude and in some cases tended to be exaggerated during the second and third matches. These data confirm the acute changes in cardiac function and metabolism that occur during competitive squash and suggest that these responses are not down-regulated but may in fact be accentuated during sequential tournament matches.
我们之前曾报道过老年男性在竞争性壁球运动期间及运动刚结束后心率和血液生化指标发生的显著变化。在本研究中，我们试图确定在连续进行的锦标赛比赛中这些变化是会减弱还是会加剧。对10名资深（年龄大于45岁）运动员在36小时内进行的三场竞争性比赛期间进行了研究。壁球运动与心率以及儿茶酚胺、乳酸、游离脂肪酸和钾的循环浓度的显著变化有关。这些变化幅度相同，在某些情况下，在第二场和第三场比赛期间这些变化往往会加剧。这些数据证实了竞争性壁球运动期间心脏功能和代谢的急性变化，并表明这些反应并未下调，实际上在连续的锦标赛比赛期间可能会更加明显。
