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目的通过活动平板运动试验,探索对健康儿童体格水平及运动耐力所产生的效果及其在农村实用的可行性。方法将收集到的所有健康儿童按照年龄的大小分成A、B、C三组,统一参加活动平板运动试验。运动试验的坡度和速度采用标准的Bruce方案,运动试验采用极量法,观察、记录并对比各组儿童血压、心率变化以及平均运动耐受时间。结果在运动后3min,A组的心率明显比B、C两组要快,差异有统计学意义(t=分别为5.71和4.23,P<0.05);在达到极量时各组儿童的心率达到最大值,在跑步2min后各组之间的心率对比开始出现明显的增长,但是在这个时间点各组儿童的心率对比无统计学意义差异(F=0.76,P>0.05);极量时的血压变化量最高,远远高于其他各个时间点,差异有统计学意义(t=分别为4.99、5.71、7.99和10.25,P<0.05);男性儿童的运动耐受时间要远比女性长,差异有统计学意义(t=4.96,P<0.05);II级儿童的运动耐受时间明显比I级儿童要短,差异有统计学意义(t=7.12,P<0.05)。结论年龄大小与儿童运动时的心率、血压变化没有太大的关系,但是运动耐受时间与年龄、性别以及锻炼程度有密切的联系,在农村地区试点产生的不良症状较少,可以在农村地区进行推广使用。
Objective To explore the effect of physical activity and exercise endurance on healthy children and its practicability in rural areas through active treadmill exercise test. Methods All healthy children were divided into three groups A, B and C according to their age, and all participated in the treadmill exercise test. The standard Bruce protocol was used for the gradient and speed of exercise test. The maximal exercise test was used to observe, record and compare the changes of blood pressure, heart rate and average exercise tolerance time in each group. Results At 3 minutes after exercise, the heart rate of group A was significantly faster than that of group B and C (t = 5.71 and 4.23, respectively, P <0.05); at the time of reaching the maximum, the heart rate of each group reached However, at this time point there was no significant difference in heart rate between children in each group (F = 0.76, P> 0.05); at the peak time, the comparison of heart rate between two groups started to show a significant increase after 2 minutes of running. The change of blood pressure was the highest, much higher than other time points, the difference was statistically significant (t = 4.99,5.71,7.99 and 10.25 respectively, P <0.05); male children’s exercise tolerance time was much longer than that of women, The difference was statistically significant (t = 4.96, P <0.05). The motor tolerance time of Grade II children was significantly shorter than that of Grade I children (t = 7.12, P <0.05). Conclusion There is not much relationship between age and heart rate and blood pressure during exercise. However, exercise tolerance time is closely related to age, sex and exercise level. Fewer adverse symptoms in rural areas can be found in rural areas To promote the use of.