Dept of Public Health, San Diego State University, San Diego, CA, USA.
J Phys Act Health. 2012 Jul;9(5):698-705. doi: 10.1123/jpah.9.5.698.
Valid and reliable self-report measures of physical activity (PA) are needed to evaluate the impact of interventions aimed at increasing the levels of PA. However, few valid measures for assessing PA in Latino populations exist.
The purpose of this study is to determine whether the GPAQ is a valid measure of PA among Latinas and to examine its sensitivity to intervention change. Intervention attendance was also examined.
Baseline and postintervention data were collected from 72 Latinas (mean age = 43.01; SD = 9.05) who participated in Caminando con Fe/Walking with Faith, a multilevel intervention promoting PA among church-going Latinas. Participants completed the GPAQ and were asked to wear the accelerometer for 7 consecutive days at baseline and again 6 months later. Accelerometer data were aggregated into 5 levels of activity intensity (sedentary, light, moderate, moderate-vigorous, and vigorous) and correlated to self-reported mean minutes of PA across several domains (leisure time, work, commute and household chores).
There were significant correlations at postintervention between self-reported minutes per week of vigorous LTPA and accelerometer measured vigorous PA (r = .404, P < .001) as well as significant correlations of sensitivity to intervention change (post intervention minus baseline) between self-reported vigorous LTPA and accelerometer-measured vigorous PA (r = .383, P < .003) and self-reported total vigorous PA and accelerometer measured vigorous PA (r = .363, P < .003).
The findings from this study suggest that the GPAQ may be useful for evaluating the effectiveness of programs aimed at increasing vigorous levels of PA among Latinas.
需要有效的、可靠的体力活动（PA）自报告测量工具来评估旨在提高 PA 水平的干预措施的效果。然而，针对拉丁裔人群的 PA 评估，有效的测量工具却很少。
本研究旨在确定 GPAQ 是否可有效测量拉丁裔女性的 PA，并检验其对干预变化的敏感性。同时还检验了干预的出席情况。
72 名（平均年龄=43.01；SD=9.05）参加 Caminando con Fe/Walking with Faith 的拉丁裔女性在基线和干预后收集数据。该研究是一项多层次的干预措施，旨在促进参加教堂活动的拉丁裔女性的 PA。参与者完成了 GPAQ，并被要求在基线时佩戴加速度计连续 7 天，然后在 6 个月后再次佩戴。加速度计数据被聚合为 5 个活动强度水平（久坐、低强度、中强度、中高强度和高强度），并与自我报告的几个领域（休闲时间、工作、通勤和家务劳动）的平均 PA 分钟数相关联。
干预后，自我报告的每周剧烈 LTPA 分钟数与加速度计测量的剧烈 PA 之间存在显著相关性（r =.404，P <.001），以及自我报告的剧烈 LTPA 与加速度计测量的剧烈 PA（r =.383，P <.003）和自我报告的总剧烈 PA 与加速度计测量的剧烈 PA（r =.363，P <.003）之间的干预变化敏感性的显著相关性。
本研究的结果表明，对于评估旨在提高拉丁裔女性剧烈 PA 水平的项目的有效性，GPAQ 可能是有用的。
