Greater rate of decline in maximal aerobic capacity with age in endurance-trained than in sedentary men
Greater rate of decline in maximal aerobic capacity with age in endurance-trained than in sedentary men
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DOI：
10.1152/japplphysiol.00774.2002
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发表时间：
2003-06-01
影响因子：
3.3
通讯作者：
Gates, PE
中科院分区：
文献类型：
--
作者：
Pimentel, AE;Gentile, CL;Gates, PE
确定习惯性耐力运动状态与年龄相关的最大有氧能力下降之间的关系[即，最大O-2消耗量（（V）/点O-2 max）]，我们对153名年龄在20 - 75岁的健康男性进行了一项对照良好的横断面实验室研究：64名久坐者和89名耐力训练者。(V)过点O-2 max（ml . kg（-1）。min（-1））与年龄呈负相关，但在任何年龄段，运动训练组的运动员都高于运动训练组（r = -0.74）。（V）随年龄增长而下降的速率（ml . kg（-1）。min（-1））显著高于久坐组（P < 0.001）。尽管两组中（V）相对于点O-2 max的相对下降率（从年轻成年期基线水平每十年下降的百分比）相似，但（V）相对于点O-2 max的绝对下降率分别为-5.4和-3.9 ml。kg（-1）。min .十年（-1）在服从训练和久坐不动的人，分别。(V)在久坐的男性中，O2 max在整个年龄范围内呈线性下降，但在经过锻炼的男性中，O2 max一直保持到50岁左右。50岁以后，接受过有氧训练的男性的（V）过点O-2 max的加速下降与训练量的减少有关（r = 0.46，P < 0.0001），与10公里跑时间的增加有关（r =-0.84，P < 0.0001）。我们的结论是，在中年和老年人的最大有氧能力的下降率是更大的锻炼男性比他们久坐的同龄人，并与O-2脉冲显着下降。
To determine the relation between habitual endurance exercise status and the age-associated decline in maximal aerobic capacity [i.e., maximal O-2 consumption ((V) over dot O-2 max)] in men, we performed a well-controlled cross-sectional laboratory study on 153 healthy men aged 20 - 75 yr: 64 sedentary and 89 endurance trained. (V) over dot O-2max (ml . kg(-1) . min(-1)), measured by maximal treadmill exercise, was inversely related to age in the endurance-trained (r = -0.80) and sedentary (r = -0.74) men but was higher in the endurance-trained men at any age. The rate of decline in (V) over dot O-2 max with age (ml . kg(-1) . min(-1)) was greater (P < 0.001) in the endurance-trained than in the sedentary men. Whereas the relative rate of decline in (V) over dot O-2 max ( percent decrease per decade from baseline levels in young adulthood) was similar in the two groups, the absolute rate of decline in (V) over dot O-2 max was -5.4 and -3.9 ml . kg(-1) . min . decade(-1) in the endurance-trained and sedentary men, respectively. (V) over dot O-2 max declined linearly across the age range in the sedentary men but was maintained in the endurance-trained men until similar to 50 yr of age. The accelerated decline in (V) over dot O-2 max after 50 yr of age in the endurance-trained men was related to a decline in training volume ( r = 0.46, P < 0.0001) and was associated with an increase in 10-km running time ( r = -0.84, P < 0.0001). We conclude that the rate of decline in maximal aerobic capacity during middle and older age is greater in endurance-trained men than in their sedentary peers and is associated with a marked decline in O-2 pulse.