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Conconi等人最近指出:心率在渐增负荷中的转折点是较理想的推测有氧阈的指标。而我们认为:说它是无氧阈的推测指标则更为恰当些。为了验证我们的看法,我们对11名体质状况不同的受试者进行了测定。受试者在功率自行车上做渐增负荷运动。记录每分钟心率。每分钟采一血样以测定血乳酸含量。结果表明:当用功率(瓦)表示时,各变量间的相关系数如下:有氧阈与无氧阈r=0.92;有氧阈与心率转折点r=0.89;无氧阈与心率转折点r=0.97.有氧阈时的功率(166.4±52.6W)显著低于心率转折点时的功率(234.5±69.5W),而无氧阈时的功率(240.0±67.1W)与心率转折点无显著差异。另有16名受试者重复做两
Conconi et al. Recently pointed out that the turning point in the gradual increase of heart rate is an ideal indicator for predicting the aerobic threshold. And we think: it is more appropriate to say that it is an anaerobic threshold speculation. In order to validate our opinion, we tested 11 subjects with different physical status. Subjects do progressive loading exercise on power bicycles. Record minute heart rate. A blood sample is taken every minute to determine the blood lactate content. The results showed that the correlation coefficients between the variables were as follows when the power was expressed in watts: aerobic threshold and anaerobic threshold r = 0.92; aerobic threshold and heart rate turning point r = 0.89; anaerobic threshold and heart rate turning point r = 0.97 (166.4 ± 52.6W) was significantly lower than the power at the turning point of heart rate (234.5 ± 69.5W), while the power without anaerobic threshold (240.0 ± 67.1W) was not significantly different from the turning point of heart rate. Another 16 subjects repeated two