J Phys Act Health. 2021 Feb 1;18(2):151-156. doi: 10.1123/jpah.2019-0671. Epub 2021 Jan 11.
An international physical activity (PA) questionnaire is beneficial to make cross-country comparisons among children and adolescents. This study assesses the validity of the PA questions in the World Health Organization Health Behavior in School-Aged Children (WHO HBSC) survey in Japanese children and adolescents.
Participants were fifth- to sixth-grade Japanese primary school students (67 students aged 10.8 [0.5] y) and first- to third-grade junior high school students (108 students aged 13.0 [0.7] y). The Japanese version of the PA questions in the WHO HBSC (WHO HBSC-J) was used. To assess the validity of the PA questions, the authors used a partial correlation adjusted for sex, age, and relative weight between the answers to the survey questions and objectively measured moderate to vigorous PA (MVPA) by an accelerometer.
A significant positive correlation was found between accelerometer-measured MVPA and the number of reported days with at least 60 minutes/day of MVPA in primary school students (r = .39, P = .002) and junior high school students (r = .32, P < .001).
The HBSC-J has moderate validity for evaluating MVPA in Japanese primary school and junior high school students.
国际体力活动（PA）问卷有益于在儿童和青少年中进行跨国比较。本研究评估了世界卫生组织《健康促进学校儿童青少年健康行为监测》（WHO HBSC）调查中 PA 问卷在日本儿童和青少年中的有效性。
参与者为五年级至六年级的日本小学生（67 名，年龄 10.8[0.5]岁）和初一至初三年级的初中生（108 名，年龄 13.0[0.7]岁）。使用了 WHO HBSC 的日本版 PA 问卷（WHO HBSC-J）。为评估 PA 问卷的有效性，作者使用偏相关分析，对性别、年龄和相对体重进行了调整，将调查问题的答案与加速度计测量的中等到剧烈体力活动（MVPA）进行了比较。
在小学生（r =.39，P =.002）和初中生（r =.32，P <.001）中，加速度计测量的 MVPA 与报告的至少每天 60 分钟 MVPA 的天数之间存在显著正相关。
HBSC-J 对评估日本小学生和初中生的 MVPA 具有中等有效性。
