能源消耗
体力活动
医学
可靠性(半导体)
组内相关
总能源支出
活动监视器
代谢当量
中国人口
物理疗法
有效性
内科学
心理测量学
临床心理学
物理
基因型
功率(物理)
化学
基因
量子力学
生物化学
出处
期刊:Chinese journal of epidemiology
日期:2004-01-01
摘要
Objective To study the reliability and validity of Chinese version of International
Physical Activity Questionnaire (IPAQ) and to provide an instrument for physical activity measurement in
Chinese--spoken population. Methods Test--retest reliability was systemically assessed in 94 participants
sampled from college students. Questionnaires were completed twice with a three-day interval. The validity
was established in 39 volunteers by Caltrac accelerometer monitoring and 24--hour activity recording for
seven consecutive days. Results Both long vision (LV) and short vision (SV) had intraclass corrlation
coeficients above 0. 7 for physical activity. The total energy expenditure measured by LV, SV and PA
records were 264. 5±260. 9, 185. 4±128. 9 (compared with activity records, P 0. 05) and 250. 5±
141. 2 MET--min/d respectivaly. Energy expenditure of moderate physical activity were 81. 7±165. 4,
32. 0±42. 5 (compared with activity record, P 0.05) and 61. 3±72. 0 MET--mien/d. Caltrac
accelerometer was moderately correlated with LV (r = 0. 50) and SV (r = 0. 63) while SV measured total
daily energy expenditure was lower than activity records. When participants were categorized into two
groups according to their time spent in physical activity above or below the target level, proportions of
agreement of questionnaires and 24-hour activity records were high, including vigorous physical activity
above 90 % and moderate physical activity above 70 %. LV, SV and activity records were measured during
sedentary condition at an approximate level. Conclusions Both LV and SV of IPAQ appeared to have
acceptable reliability and validity, compared to other physical activity instruments that were used in various
large epidimiological studies. The total or physical energy expenditures were similar between LV and
activity record. For activity levels, the proportion of agreement were similar between activity records and
LV or SV. However, SV underestimated the energy expenditure of total and moderate physical activity.
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