ロー・インパクト・エアロビック・ダンスとハイ・インパクト・エアロビック・ダンスの運動強度について

抄録

It was the purpose of this investigation: 1) to compare the exercise intensities, oxygen uptake (VO₂), relative oxygen uptake (%VO₂max) and heart rate (HR), during low impact aerobic dance (LIAD) and high impact aerobic dance (HIAD) and 2) to compare the measured %VO₂max and the estimated %VO₂max that calculated from the average HR during LIAD and HIAD by using HR-%VO₂max regression equation obtained through submaximal treadmill running. Eight female university students (age 20.5±0.8 years) completed both LIAD and HIAD that consisted of the same movements at 132 beats·min^-1 tempo for 10 minutes, respectively. The mean VO₂ (ml·kg^-1·min^-1) and %VO₂max of 28.2±1.5 and 57.2±2.7 for the LIAD were lower (p<0.05) than 35.8±1.3 and 72.7±2.8 for the HIAD. The mean HR (beats·min^-1) of 151.3±9.7 for the LIAD was lower (p<0.05) than 170.6±6.1 for the HIAD. The mean estimated %VO₂max of 64.1±5.7 was higher (p<0.05) than the mean measured %VO₂max of 57.2±2.7 for the LIAD. In contrast, there was no significant difference between the mean estimated %VO₂max of 75.5±4.6 and the mean measured %VO₂max of 72.7±2.8 for the HIAD. It was found, within the limits of this investigation, that the LIAD showed lower exercise intensities than the HIAD even though the same tempo. In addition, the HR elicited from LIAD represents a higher estimated %VO₂max than that of measured %VO₂max and running. Therefore, the assumption that LIAD training produces the same cardiovascular adaptations as running training when performed at the same target HR may be unwarranted.