心拍数からみた剣道練習中の運動強度

抄録

In order to clarify a level of an energy expenditure in Kendo exercise, heart rate and oxygen intake of experienced Kendo players (four males) were measured by using a bicycle ergometer. A regression equation between the heart rate and %Vo₂max was formulated. Thereafter, heart rates of the subjects were recorded on the spot of the practical exercise of Kendo, and %Vo₂max were estimated from the equation.
The results were summarized as follows:
1) There was a significant correlation between heart rate and oxygen intake. The 50%Vo₂max and 70%Vo₂max were corresponded to 141.6 beats/min. and 166.8 beats/min., respectively.
2) Mean values of the Vo₂max and Vo₂max per weight were 3.88±0.3 l/min. and 64.08±10.57ml/kg/min. and HRmax was 200.7 beats/min.
3) The heart rate were 121.0±11.7 beats/min. under warming-up exercise,145.1±14.5 beats/min. under Uchikaeshi and Kihon-geiko,155.8±12.3 beats/min. under Gokaku-gaiko,188.6±7.5 beats/min. under Kakari-geiko which was the highest measured value. These estimated %Vo₂max were 33.5,52.7,61.2,85.7% respectively.
4) The heart rate under two minutes intermission between Gokaku-geiko was less than 140 beats/min. in most cases.5) The average of heart rate under the exercise was 147 beats/min. This value was corresponded to 2.061/min. of oxygen intake which was equivalent to 65%Vo₂max.