BREATH-HOLDING TEST AS A MEASURE OF CARDIOVASCULAR FITNESS

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  • YUSA Seiyu
    Institute of Sports Medicine Yokohama City University

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  • 循環機能検査としての止息テスト
  • 循環機能検査としての止息テスト〔英文〕
  • ジュンカン キノウ ケンサ ト シテ ノ シソク テスト エイブン

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The measurement of cardiovascular and respiratory functions is important for the evaluation of physical fitness related to the changes in the heart rate and blood pressure caused by the exercise loads and postures. This study was started after the author and his co-workers had carried out simple cardiovascular tests after squatting exercises and produced some standards of evaluation for screening test. However, the squatting exercises were too light for well-trained athletes. The author thus began a study based on the forty milimeter mercury test as another method that could give different loads to the athletes. Fifty-six Japanese athletes, 46 males and l0 females, participated in the test. Electrocardiogram and electro-tachogram were recorded at the same time. Moreover, the Harvard Step Test was given to 26 subjects and simple breath-holding tests, without mercury manometer, were performed. There are some conclusions that can be made from this study. (1) Those who held long breath-holding duration showed the periodical variation of the heart rate, from 10 to 20 seconds, during breath-holding. (2) In the group with longer breath-holding duration, the average heart rate during breath-holding was low. (3) The correlation was found high between breath-holding using mercury manometer. And the correlation was also found high between the average heart rate during breath-holding and Harvard Step Test score. (4) It is concluded that heart rate during breath-holding and breath-holding duration in the mercury test will be useful as an evaluation factor for athletes.

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