Kikuchi Hiroyuki, Inoue Shigeru, Odagiri Yuko, Ihira Hikaru, Inoue Manami, Sawada Norie, Noda Mitsuhiko, Tsugane Shoichiro
Department of Preventive Medicine and Public Health, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan.
Epidemiology and Prevention Group, Center for Public Health Sciences, National Cancer Centre, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan.
Prev Med Rep. 2020 Aug 6;20:101169. doi: 10.1016/j.pmedr.2020.101169. eCollection 2020 Dec.
The Japan Public Health Center-based prospective study- physical activity questionnaire (JPHC-PAQ) was originally developed and validated for total physical activity (total PA). However, it is uncertain whether JPHC-PAQ could also estimate intensity-specific physical activity. The present study aims to evaluate the validity and reliability of intensity-specific physical activity by the JPHC-PAQ against 24-hour activity records (24 h-R). One-hundred and ten participants were chosen from those who had enrolled in the JPHC cohort. Time spent for total PA and intensity-specific physical activity, i.e. moderate (MPA), vigorous (VPA) and moderate-to-vigorous physical activity (MVPA) was estimated by JPHC-PAQ. In addition, the volume of PA was calculated by time of each activity multiplied by intensity of activity. For validity assessment, estimated physical activities were compared with 24 h-R. For reliability evaluation, a retest was conducted 3-6 months after the first survey was answered. Moderately strong correlation between JPHC-PAQ and 24 h-R was observed for total PA estimations (Spearman's rho = 0.672). In addition, moderate correlations were found for MPA (activity time: rho = 0.345, activity volume: rho = 0.300) and MVPA (activity time: rho = 0.563, activity volume: rho = 0.672). Whereas, little association was found for VPA time and volume. As for reliability, moderately strong correlation was found for both total and intensity-specific physical activity in the test-retest (rho = 0.482-0.745). In addition to total PA, the JPHC-PAQ showed acceptable validity and reliability for intensity-specific physical activity, especially in estimating MVPA and MPA.
日本公共卫生中心前瞻性研究-体力活动问卷（JPHC-PAQ）最初是为总体力活动（总PA）而开发和验证的。然而，JPHC-PAQ是否也能估计特定强度的体力活动尚不确定。本研究旨在评估JPHC-PAQ针对24小时活动记录（24 h-R）的特定强度体力活动的有效性和可靠性。从参加JPHC队列研究的人群中选取了110名参与者。通过JPHC-PAQ估计总PA以及特定强度体力活动（即中等强度（MPA）、剧烈强度（VPA）和中等至剧烈强度体力活动（MVPA））所花费的时间。此外，通过将每项活动的时间乘以活动强度来计算PA量。为进行有效性评估，将估计的体力活动与24 h-R进行比较。为进行可靠性评估，在第一次调查回答后的3至6个月进行了重测。在总PA估计方面，观察到JPHC-PAQ与24 h-R之间存在中度强相关性（斯皮尔曼等级相关系数rho = 0.672）。此外，在MPA方面发现了中度相关性（活动时间：rho = 0.345，活动量：rho = 0.30）以及MVPA（活动时间：rho = 0.563，活动量：rho = 0.672）。然而，在VPA时间和活动量方面发现的关联较弱。至于可靠性，在重测中总体力活动和特定强度体力活动均发现了中度强相关性（rho = 0.482 - 0.745）。除总PA外，JPHC-PAQ在特定强度体力活动方面表现出可接受的有效性和可靠性，尤其是在估计MVPA和MPA方面。
