Holen Marit Sundal, Een Rønnaug, Mildestvedt Thomas, Eide Geir Egil, Meland Eivind
Department of Public Health and Primary Health Care, Research Group for General Practice, University of Bergen, Bergen, Norway.
Open Cardiovasc Med J. 2012;6:156-62. doi: 10.2174/1874192401206010156. Epub 2012 Dec 28.
Questionnaires on physical activity (PA) and physical capacity (PC) are valuable tools, as they are cost beneficial, and have high response rates. The validity of short versions of such questionnaires has not been examined satisfactorily. Therefore, we aimed at examining the validity of a set of questions coding for PA and PC.
The questions were administered to 217 men and women attending a cardiac rehabilitation program. Participants also gave blood samples, measuring HDL cholesterol, triglycerides (TG), insulin, glucose, and microCRP. The relations between PA and PC and biological markers were examined by linear regression analyses.
Measures for PC and for PA were identified by factor analysis, which proved internally consistent. TG, homeostatic model assessment (HOMA) score, and mCRP were all significantly associated with the measures of PC and PA.
The measures of PA and PC are valid compared with biological markers, allowing cost-beneficial and time-efficient evaluation of important measures for cardiovascular health.
关于身体活动（PA）和身体能力（PC）的问卷是有价值的工具，因为它们具有成本效益且回复率高。此类问卷简版的有效性尚未得到令人满意的检验。因此，我们旨在检验一组编码PA和PC的问题的有效性。
向参加心脏康复项目的217名男性和女性发放这些问题。参与者还提供了血样，用于测量高密度脂蛋白胆固醇、甘油三酯（TG）、胰岛素、葡萄糖和微量C反应蛋白。通过线性回归分析检验PA和PC与生物标志物之间的关系。
通过因子分析确定了PC和PA的测量方法，结果证明其内部具有一致性。TG、稳态模型评估（HOMA）得分和mCRP均与PC和PA的测量方法显著相关。
与生物标志物相比，PA和PC的测量方法是有效的，能够对心血管健康的重要指标进行成本效益高且省时的评估。
