Departmental Bulletin Paper 心肺持久性評価指標としての相対心拍数増加率と健康関連因子の相互関係
Interrelationship between Health Related Factors and Slope of Relative Heart Rate on Work Rate (Δ%HR/ΔWR) for Cardiorespiratory Endurance Index

吉岡, 隆之  ,  近森, 栄子  ,  白石, 龍生

64 ( 2 )  , pp.7 - 13 , 2016-02-29 , 大阪教育大学
An assessment method for cardiorespiratory endurance has been developed for non-athletes. The method uses a simple index(Δ%HR/ΔWR): “the slope of modified relative heart rate on work rate" during incremental exercise on a cycle ergometer. In this study, a multiple regression analysis was conducted to examine the interrelationship between the Δ%HR/ΔWR and health related factors(14 indexes on body composition and cardiorespiratory function). Subjects were 32 healthy men aged between 21 and 33(mean 26.5)years. A criterion variable in the multiple regression analysis was the Δ%HR/ΔWR. Explanatory variables were the health related factors, which were height, weight, Percentage of body fat(%Fat), Resting heart rate(HRrest), Systolic blood pressure(SBP), Diastolic blood pressure(DBP), Red blood cell(RBC), Hemoglobin(Hb), Hematocrit(Ht), Mean corpuscular volume(MCV), Mean corpuscular hemoglobin(MCH), Mean corpuscular hemoglobin concentration(MCHC), Percentage of Vital capacity(%VC)and Percentage of forced expiratory volume in 1 second(FEV1.0%). Consequently, weight, MCV and %VC were selected as negative variables by the stepwise forward multiple regression analysis. Height, %Fat and SBP were also selected as positive variables. The multiple correlation coefficient of the stepwise analysis was 0.82(p<0.001). In conclusion, it is interrelatively suggested that the higher the values of weight, MCV and %VC are, and also the lower the values of Height, %Fat and SBP are, the lower the Δ%HR/ΔWR is(the higher cardiorespiratory endurance is).

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