Reliability and validity of the past year total physical activity questionnaire
Reliability and validity of the past year total physical activity questionnaire
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DOI：
10.1093/aje/kwj112
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发表时间：
2006-05-15
影响因子：
5
通讯作者：
Ballard-Barbash, R
中科院分区：
文献类型：
--
作者：
Friedenreich, CM;Courneya, KS;Ballard-Barbash, R
作者确定了他们的过去一年总体力活动问卷（PYTPAQ）的有效性和可靠性，该问卷评估了过去一年中职业，家庭和娱乐活动的频率，持续时间和强度。PYTPAQ在基线时完成两次，间隔9周（平均），由154名年龄35-65岁的健康加拿大男性和女性进行可靠性评估。PYTPAQ在1年后以自填问卷的形式再次完成。在这一年中，参与者四次佩戴加速度计7天，并完成7天的身体活动日志。作者通过比较PYTPAQ汇总值与身体活动日志和加速度计数据的1年平均值以及基线和1年时测量的身体健康和人体测量数据来评估有效性。可靠性（代谢当量-小时/周）的斯皮尔曼相关系数为总活动0.64，职业活动0.70，娱乐活动0.73，家庭活动0.65。对于总活动，PYTPAQ和7天体力活动日志之间相关性的组内相关系数为0.42（95%置信区间：0.28，0.54），对于加速度计数据，组内相关系数为0.18（95%置信区间：0.03，0.32）。PYTPAQ小时/周剧烈活动与最大摄氧量之间的斯皮尔曼相关性在基线和随访时分别为0.37和0.32。一般而言，PYTPAQ在测量过去一年的身体活动方面具有可接受的信度和效度，与类似问卷的信度和效度相当。
The authors determined the validity and reliability of their Past Year Total Physical Activity Questionnaire (PYTPAQ), which assesses the frequency, duration, and intensity of occupational, household, and recreational activities performed over the past year. The PYTPAQ was completed twice at baseline, 9 weeks apart (on average), by 154 healthy Canadian men and women aged 35-65 years for assessment of reliability. The PYTPAQ was completed again 1 year later as a self-administered questionnaire. Four times during the year, participants wore an accelerometer for 7 days and completed 7-day physical activity logs. The authors assessed validity by comparing PYTPAQ summary values with 1-year averages of the physical activity logs and accelerometer data and with physical fitness and anthropometric data measured at baseline and 1 year. Spearman correlations for reliability (metabolic equivalent-hours/week) were 0.64 for total activity, 0.70 for occupational activity, 0.73 for recreational activity, and 0.65 for household activity. For total activity, the intraclass correlation coefficient for correlation between the PYTPAQ and the 7-day physical activity logs was 0.42 (95% confidence interval: 0.28, 0.54), and for the accelerometer data it was 0.18 (95% confidence interval: 0.03, 0.32). Spearman correlations between PYTPAQ hours/week of vigorous activity and maximal oxygen uptake were 0.37 and 0.32 at baseline and follow-up, respectively. In general, the PYTPAQ has acceptable reliability and validity for measurement of past-year physical activity that is comparable to that of similar questionnaires.