負荷下降時のHR-VO_2関係式を利用したスポーツ活動時の酸素摂取量の確定

概要

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HR-VO_2 relationship has been used to estimate the intensity of sports activity. However, it is not always accurate because the intensity of sports activity during a game can vary. This study investigated the validity of estimated oxygen uptake with combined applications of HR-VO_2 relationships under stepwise increase of workloads (UP-formula) and stepwise decrease of workloads (DOWN-formula). Thirteen young male adults without regular exercise played four different sports (tennis, badminton, table tennis and bowling) during which, their heart rate and oxygen uptake were continuously measured. The oxygen uptake estimated from the UP-formula, and UP and DOWN formulas were compared with the actual oxygen uptakes measured by a potable O_2 meter (Oxylog: Morgan Corp., UK). In all activities, the calculated value from the UP-formula overestimated the actual oxygen uptake. However, using both the UP and DOWN formulas for estimation was more valid than estimation by the UP formula alone. These results suggest that the UP and DOWN formulas are useful for in estimating oxygen uptake during sports activities.
日本運動生理学会の論文
1996-08-31