EFFECTS OF GENDER, AGE, AND FITNESS LEVEL ON RESPONSE OF VO2MAX TO TRAINING IN 60-71 YR OLDS
EFFECTS OF GENDER, AGE, AND FITNESS LEVEL ON RESPONSE OF VO2MAX TO TRAINING IN 60-71 YR OLDS
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DOI：
10.1152/jappl.1991.71.5.2004
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发表时间：
1991-11-01
影响因子：
3.3
通讯作者：
HOLLOSZY, JO
中科院分区：
文献类型：
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作者：
KOHRT, WM;MALLEY, MT;HOLLOSZY, JO
比较了53名男性和57名女性60~71岁的最大有氧功率(Vo2max)对耐力运动的适应性反应。这些受试者都很健康，并且已经久坐了至少两年。训练前两次在分级跑台步行时测量VO2最大值。这些值具有重复性(24.4+/-4.7对24.4+/-4.6(SD)ml.min-1·kg-1；r=0.96)。受试者主要通过步行和跑步训练9-12个月，平均3.9+/-0.6天/周和45+/-5min/天，最大心率(HR(Max))为80+/-5%。VO2 max(ml.min-1·kg-1)平均改善24+/-12%(范围0-58%)。男性和女性的相对改善没有显著差异(26+/-12比23+/-12%，毫升·分-1公斤-1；21+/-10比19+/-10比19+/-10，L/分钟)。将受试者按年龄分为三组(60~62岁、63~66岁、67~71岁)，三组间最大摄氧量的相对增加无显著差异(21%vs.19%vs.18%，L/分钟)。相关分析还发现，改善程度与年龄之间没有显著关系(r=-0.13)。为了考察初始体能水平对运动适应性反应的影响，训练前的VO2max与VO2max的绝对改善相关。这种关系在男性(r=0.04)和女性(r=-0.23)中都不显著。总之，在60-71岁的健康人中，最大摄氧量与年轻人对耐力运动训练的适应程度相同，而且这种适应与性别、年龄和初始健身水平无关。
The adaptive response of maximal aerobic power (Vo2 max) to endurance exercise training was compared in 53 men and 57 women, aged 60-71 yr. The subjects were healthy and had been sedentary for at least 2 yr. Pretraining Vo2 max was measured during graded treadmill walking on two occasions. These values were reproducible (24.4 +/- 4.7 vs. 24.4 +/- 4.6 (SD) ml.min-1.kg-1; r = 0.96). Subjects trained primarily by walking and running for 9-12 mo, averaging 3.9 +/- 0.6 days/wk and 45 +/- 5 min/day at 80 +/- 5% of maximal heart rate (HR(max)). Average improvement in Vo2 max (ml.min-1.kg-1) was 24 +/- 12% (range 0-58%). Relative improvement was not significantly different in men and women (26 +/- 12 vs. 23 +/- 12%, ml.min-1.kg-1; 21 +/- 10 vs. 19 +/- 10%, l/min). When subjects were divided into three groups by age (60-62, 63-66, 67-71 yr), there were no significant differences among the groups in the relative increase in Vo2 max (21% vs. 19% vs. 18%, l/min). Correlation analysis also yielded a nonsignificant relationship between improvement and age (r = -0.13). To examine the effect of initial fitness level on the adaptive response to exercise, pretraining Vo2 max was correlated with the absolute improvement in Vo2 max. This relationship was not significant in either men (r = 0.04) or women (r = -0.23). In conclusion, in healthy people aged 60-71 yr, Vo2 max adapts to endurance exercise training to the same relative extent as in young people, and this adaptation is independent of gender, age, and initial level of fitness.