On the Heart Rate during and of t er Running

概要

論文の詳細を見る
The pulse rate test is a useful method to check circulatory-respiratory fitness. A quick recovery of the pulse rate to the standing normal is one characteristic of fitness. It is pointed out however, that the pulse rate must be counted immediately since the rates fall rapidly especially in the trained, <BR>Boas recorded some years ago, with cardiotachometer, heart rate of boys in each fifteen seconds interval during and after exhausting exercises.<BR>The author closely followed up the heart rate of healthy women with a cardiotachograph during and after 50-100 meters sprint running. Action current of the heart was led from the subject by two electrodes attached to the chest. The amplified current of R-wave of ECG operated Thyratron relay system and a electromagnetic oscillogra. ph. The signals of start and finish of the running were marked on the record of the heart rate.<BR>It was found that if the time constant of the amplifier for ECG was reduced to 0.05 second, the effect of skeletal muscle activity was negligible. The wires connecting the subject with the cardiotachograph were 50 meters long, giving the subject free running on the straight course on the track.<BR>The heart rate increased, as well known, rapidly from the beginning of running and reached the maximum rate at the finish of the sprint running. It was noted that respiratory arrhythmia disappeared as the heart rate increased during and after the running. Although the initial drop in the heart rate after the end of running was rapid, it was possible to know the nearest value of the maximum rate in the running by counting the rate in five seconds just after completion of the running. In the study of recovery course, it was useful to count the pulse rate every fifteen seconds after the end of running.
日本民族衛生学会の論文

On the Heart Rate during and of t er Running

スポンサーリンク

概要

著者

関連論文

スポンサーリンク