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首页> 外文期刊>European journal of epidemiology >The validity of self-reported leisure time physical activity, and its relationship to serum cholesterol, blood pressure and body mass index. A population based study of 332,182 men and women aged 40-42 years.
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The validity of self-reported leisure time physical activity, and its relationship to serum cholesterol, blood pressure and body mass index. A population based study of 332,182 men and women aged 40-42 years.

机译：自我报告的休闲时间体育活动的有效性，及其与血清胆固醇，血压和体重指数的关系。对332182名40-42岁的男性和女性进行的基于人口的研究。

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The importance of leisure time physical activity as a health indicator became more obvious after the results of large prospective studies were published. The validity of these results depends upon both the selection of the active individuals and to what extent self-reported physical activity reflects the individual's true activity. The purpose of this paper is to describe the changes in self-reported physical activity, and to assess the relation between this variable and other biological risk factors such as blood lipids, blood pressure and body mass index (BMI). This report also aims at corroborating the validity of self-reported physical activity by assessing the consistency of the associations between these biological risk factors and physical activity during a 25-years period. The basis for this analysis is a long lasting observational study with a questionnaire as the most important research instrument, in addition to physiological and biological factors such as BMI, blood pressure and blood lipids. The study population consists of 332,182 individuals, aged 40-42 from different counties in Norway who were invited to participate in health survey during 1974-1999. The objectives of this study are (1) to describe changes in self-reported physical activity from 1974 to 1999; (2) to assess the relation between physical activity and the biological variables; and (3) to corroborate the validity of the variable physical activity by assessing the consistency of the above analysis. The results of the analyses of association between decade of birth and self-reported physical activity show that physical activity among 40-aged individuals decreased during 1974-1999. This trend is stronger among the men. Multivariate analyses revealed differences in BMI and serum cholesterol between levels of self-reported physical activity, gender, smoking habits and decade of birth. The explained percentage of the total variance ranged from 6% for BMI to 7% for serum cholesterol. The similar shape of serum cholesterol and BMI according to physical activity indicates that the validity of self-reported physical activity has remained stable over these 25 years. Furthermore, the analysis of covariance showed that the slopes relating year of birth and serum cholesterol and BMI are parallel for self-reported physical activity thus the validity of the variable is confirmed.
机译：大型前瞻性研究结果发表后，休闲时间体育锻炼作为健康指标的重要性变得更加明显。这些结果的有效性取决于活动个体的选择以及自我报告的身体活动在多大程度上反映了个体的真实活动。本文的目的是描述自我报告的体育活动的变化，并评估该变量与其他生物危险因素（例如血脂，血压和体重指数（BMI））之间的关系。本报告还旨在通过评估在25年的时间里这些生物学危险因素与体育活动之间的关联性，来证实自我报告的体育活动的有效性。该分析的基础是一项长期的观察性研究，除了生理和生物学因素（例如BMI，血压和血脂）外，问卷作为最重要的研究工具。研究人群包括来自挪威不同县的332182名年龄在40-42岁之间的人，他们被邀请参加1974-1999年的健康调查。这项研究的目的是（1）描述1974年至1999年自我报告的体育活动的变化; （2）评估身体活动与生物学变量之间的关系; （3）通过评估上述分析的一致性，证实可变体力活动的有效性。出生十年与自我报告的身体活动之间的关联性分析结果表明，1974-1999年间40岁个体的身体活动减少了。这种趋势在男性中更为明显。多变量分析显示，自我报告的身体活动水平，性别，吸烟习惯和出生年限之间，BMI和血清胆固醇存在差异。总方差的解释百分比范围从BMI的6％到血清胆固醇的7％。根据体力活动，血清胆固醇和BMI的形状相似，表明这25年以来自我报告的体力活动的有效性一直保持稳定。此外，协方差分析表明，与出生年份，血清胆固醇和BMI有关的斜率与自我报告的体育活动平行，因此证实了该变量的有效性。

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