运动时补液对老年人抗氧化能力的影响

EFFECTS OF FLUID REPLACEMENTS ON THE ELDERS’ ANTIOXIDATION FUNCTION DURING EXERCISES

[目的]观察不同持续时间运动时服用不同饮料对老年人SOD(超氧化物岐化酶)的影响。[方法]99名健康的老年女性教师(年龄60～64岁)被随机分为运动对照组,运动补凉开水组,运动补佳得乐组(其中每组又各分为20min组、40min组和60min组)。运动对照组运动前,运动中均不补液,运动补液组运动前,运动中补凉开水或佳得乐饮料,分别检测各组运动前、运动后即刻血清SOD含量。[结果]1)同组运动前后比较,A、B、C3组的20min组和40min组运动后即刻的SOD出现升高,其中各组的40min组差异均有统计学意义(P<0.05),而20min组均差异无统计学意义(P>0.05),3组的60min组均出现下降,其中A60组差异有统计学意义(P<0.01),而B60组和C60组下降差异均无统计学意义(P>0.05);2)同种状态组间比较,运动前各组间及运动后即刻各组的20min和40min组间比较差异均无统计学意义(P>0.05),A60组下降的幅度(85.6%)非常显著的大于B60组和C60组(P<0.01),而B60组与C60组相比差异无统计学意义(P>0.05)。[结论]运动中补充液体特别是含适量电解质的饮料可以改善运动中的抗氧化能力。

[Objective] To observe the effects of fluid replacements on the elders＇ SOD during exercises of ration. [Methods] 99 female teachers （60-64 years old） were randomly divided into the exercises control group and cises＋ fluid replaCement groups （each group was divided into 20min group, 40min group, 60rain group）. Exercises group was not Supplied with fluid before exercise or in the middle of exercises; exercises＋ fluid replacement groups were supplied boiled,water or Gatorade drink before and in the middle of exercises. Then monitored the SOD of each group before and after exercises immediately. [Results] 1） In the same group, the SOD of 20min groups and 40min groups increased after exercises immediately, but only that of 40min groups was obviously increased （P 〈 0.05）. The SOD of 60min groups descended, changes of A60 group were obvious （P 〈 0.01 ）. 2） In the same state, the extent of descent of A60 group （85.6%） was ouslY higher than that of B60 group and C60 group （P 〈 0.05）, but there was not obviously different between B60 group and C60 group （P 〉 0.05）. [Conclusion] Fluid replacement especially beverage with glucose and electrolyte could improve the elders＇ anfioxidafion function in the middle of exercises.