Development of sinusoidal work test for evaluation of health and fitness

本研究是一项检验，旨在阐明正弦、工作测试是否有助于评估健康和体能。我们测定了16名体能训练者和14名非体能训练者进行4 min正弦运动时心率的相位响应和幅度响应。得到的结果如下：1。训练组心率相位滞后较短，两组在正弦运动时低负荷时的相位滞后均小于高负荷时的相位滞后。训练组的心率幅度明显增大。心率反应与每周运动频率和最大摄氧量之间存在显著相关。且前者的相关系数高于后者。8名未接受训练的受试者接受为期6个月的跑步训练（2-3周）。心率相对于正弦运动的相位滞后更短，心率振幅更大。结果表明，未经训练的受试者对正弦运动的心率反应与训练过的受试者相似。这些发现表明，在身体训练的男性中，心率对正弦运动的反应更快、更大。这些心率反应的特点是由于长期的体育锻炼习惯。因此，正弦功测试有可能是评价健康和体能的有效测试。

Present study was an examination to clarify whether sinusoidal, work test is useful for evaluating health and fitness. We determined the phase response and amplitude response of heart rate from sinusoidal exercise with period of 4 min in 16 physically trained and 14 untrained subjects.The results obtained were as follows ;1.The phase lag of heart rate was shorter in trained group, and phase lag to low workload during sinusoidal exercise is shorter than to high workload in both groups.2.The amplitude of heart rate was significantly larger in trained group.3.Significant correlations were found between response of heart rate and weekly exercise frequency and maximal oxygen uptake. And the former correlation was higher than the later.4.Eight untrained subjects undergone a 6-month running training (2-3/week). Then their phase lag of heart rate to sinusoidal exercise was shorter, and amplitude of heart rate was larger. As a result, response of heart rate to sinusoidal exercise in untrained subjects was similar to trained subjects.These findings suggest that response of heart rate to sinusoidal exercise was faster and larger in physically trained men. These characteristics of heart rate response are due to long-term physical training habit. Therefore it is possible that sinusoidal work test is useful test for evaluating health and fitness.