Department of Hygiene, Faculty of Medicine, Kagawa University, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan,
Environ Health Prev Med. 2010 Nov;15(6):374-80. doi: 10.1007/s12199-010-0147-0. Epub 2010 Apr 28.
The aim of this study was to evaluate aerobic exercise levels, expressed in terms of ventilatory threshold (VT), in a Japanese population and explore the relationship between VT and exercise habits in this population.
This was a cross-sectional study in which data collected from 547 men and 524 women aged 20-69 years and not on medications, were used to assess exercise habits and parameters at VT, namely, oxygen uptake, work rate, and heart rate.
Age-related changes in parameters at VT were noted. Of the participants, 205 men (37.5%) and 142 women (27.1%) had exercise habits. Oxygen uptake and work rate at VT in subjects with exercise habits were significantly higher than those without exercise habits after age had been adjusted for in both sexes. Anthropometric parameters were significantly correlated with oxygen uptake at VT, and the highest correlation coefficient rate was found between oxygen uptake at VT and body fat percentage (men r = -0.589, women r = -0.631).
The mean values determined here may provide a useful database for evaluating VT in Japanese adult subjects.
本研究旨在评估日本人群的有氧运动水平（以通气阈[VT]表示），并探讨 VT 与该人群运动习惯之间的关系。
这是一项横断面研究，共纳入 547 名男性和 524 名年龄在 20-69 岁之间、未服用药物的研究对象，用以评估运动习惯和 VT 时的参数，包括摄氧量、做功量和心率。
VT 时的参数随年龄变化。在男性中，205 人（37.5%）和女性中 142 人（27.1%）有运动习惯。校正年龄后，有运动习惯者的 VT 时摄氧量和做功量均显著高于无运动习惯者。在两性中，VT 时的摄氧量与人体测量学参数显著相关，其中与体脂百分比的相关系数最高（男性 r=-0.589，女性 r=-0.631）。
本研究确定的平均值可为评估日本成年人群的 VT 提供有用的数据库。
