Department of Oncology, Oslo University Hospital, Ullevål, Norway.
Scand J Public Health. 2010 Nov;38(5 Suppl):105-18. doi: 10.1177/1403494810378919.
To study the association between self-reported physical activity (PA) and objectively measured PA, resting heart rate, and physical fitness.
During 2007-08, 5017 men and 5607 women aged 30-69 years attended the sixth survey of the Tromsø study. Self-reported PA during leisure-time and work were assessed and resting heart rate was measured. In a sub-study, the activity study, PA (Actigraph LLC) and physical fitness (VO₂(max)) were objectively measured among 313 healthy men and women aged 40-44 years.
Self-reported leisure PA was significantly correlated with VO₂(max) (ml/kg/min) (women 0.40, p < 0.001, men 0.44 p < 0.001) and moderate-to-vigorous PA (>2000 counts/min) (women 0.28, p < 0.01, men 0.25, p < 0.01). The intra-class correlation coefficient between self-reported leisure PA and overall PA (counts/min) measured by accelerometer was 0.62 (95% CI 0.51, 0.71) for women and 0.59 (95% CI 0.47, 0.69) for men, and for VO₂(max) the intra-class correlation coefficient was 0.86 (95% CI 0.81, 0.90) for both sexes. Among all participants, an inverse dose-response relationship was observed between self-reported leisure PA and resting heart rate for both men and women (p < 0.0001). More women than men met the international recommendations of 10,000 step counts/day (27% vs. 22%) and the recommendation of at least 30 minutes/day of moderate-to-vigorous intensities (30% vs. 22 %).
The Tromsø physical activity questionnaire has acceptable validity and provides valid estimates of high-intensity leisure activity. However, these results underscore the need for collecting objectively PA measurements in large epidemiological studies.
研究自报体力活动（PA）与客观测量的 PA、静息心率和体质之间的关系。
在 2007-08 年期间，年龄在 30-69 岁的 5017 名男性和 5607 名女性参加了特罗姆瑟研究的第六次调查。评估了休闲时间和工作期间的自报体力活动，测量了静息心率。在一项子研究中，在 313 名年龄在 40-44 岁的健康男性和女性中，使用加速度计客观测量了 PA（Actigraph LLC）和体质（VO₂(max)）。
自报休闲 PA 与 VO₂(max)（ml/kg/min）显著相关（女性 0.40，p<0.001，男性 0.44，p<0.001）和中高强度 PA（>2000 计数/分钟）（女性 0.28，p<0.01，男性 0.25，p<0.01）。女性自报休闲 PA 与加速度计测量的总体 PA（计数/分钟）之间的组内相关系数为 0.62（95%CI 0.51，0.71），男性为 0.59（95%CI 0.47，0.69），对于 VO₂(max)，两性的组内相关系数为 0.86（95%CI 0.81，0.90）。在所有参与者中，男性和女性的自报休闲 PA 与静息心率之间存在负剂量反应关系（p<0.0001）。与男性相比，更多的女性符合 10000 步/天的国际建议（27%比 22%）和至少 30 分钟/天的中高强度建议（30%比 22%）。
特罗姆瑟体力活动问卷具有可接受的有效性，并提供了高强度休闲活动的有效估计。然而，这些结果强调了在大型流行病学研究中收集客观 PA 测量的必要性。
