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本文对40名13～15岁中学男生在不同劳动负荷水平时的生理机能反应作了研究,结果表明:平均心率与耗氧量均随着提重频率的增加而上升,当提重频率由每分钟2次增至4次和6次时,心率由安静时的86次/min 分别上升到101.9、118.5和129.9/min;耗氧量也从安静时的10.2ml/kg·min 分别增加到12.9、15.9和18.6ml/kg·min。各提重频率间心率及耗氧量的差别均具有显著性意义(p<0.01)。当提重量为体重的35％时心率增加显著(p<0.05)。以平均心率120次/min 作为生理上限时,选择提重量为体重的30％和提重频率为每分4次的劳动负荷较为合适。
In this paper, 40 middle school boys aged 13 ~ 15 years at different levels of labor load physiological responses were studied, the results showed that: the average heart rate and oxygen consumption increased with the increase of the frequency of lifting, when the lifting frequency from The heart rate increased from 101 breaths / minute to 101.9, 118.5 and 129.9 / min, respectively, when the heart rate increased from 2 to 4 and 6 times, respectively. The oxygen consumption also increased from 10.2ml / kg · min to 12.9 , 15.9 and 18.6 ml / kg · min. The differences of heart rate and oxygen consumption between the lifting frequency were significant (p <0.01). Heart rate increased significantly (p <0.05) when taken at 35% of body weight. With an average heart rate of 120 breaths / min as the upper limit of physiotherapy, it is more appropriate to select the workload of 30% of the body weight and the weight of 4 times per minute.