@article{ref1,
title="Comparison of different physical activity measurement methods in adults aged 45 to 64 years under free-living conditions",
journal="Clinical journal of sport medicine",
year="2016",
author="Lipert, Anna and Jegier, Anna",
volume="27",
number="4",
pages="400-408",
abstract="OBJECTIVE: To compare physical activity (PA) measured by 4 methods in adults under free-living conditions in relation to selected demographic and anthropometric variables. <br><br>DESIGN: Cohort study. SETTING: Department of Sports Medicine. PARTICIPANTS: Clinically healthy men (81) and women (69) aged 45 to 64 years. INTERVENTIONS: Physical activity monitoring for 7 consecutive days under free-living conditions by pedometer (P) and accelerometer (A) simultaneously and PA questionnaires: International Physical Activity Questionnaire (IPAQ) and Seven-Day Physical Activity Questionnaire Recall (SDPAR) completed after the 7-day PA. MAIN OUTCOME MEASURES: Comparison of PA measured by pedometer, IPAQ, and SDPAR with accelerometer with regard to age, body mass, gender, and obesity type. <br><br>RESULTS: Total energy expenditure (EE) by IPAQ was higher than A (P < 0.001) in both groups regardless of age, body mass, or obesity type. Mean EE value by P was greater than A (P < 0.001) in central-obesity males and lower than A (P < 0.001) in central-obesity females. There were differences in step counts in women, unnoticed in men. SDPAR overestimated total EE in gynoid-obesity males and in central-obesity females compared with A. Ninety-five percent CI was the largest around IPAQ compared with P and SDPAR, with SDPAR showing the best agreement with A. <br><br>CONCLUSIONS: Body mass and obesity type influenced PA measurements. To monitor PA, it is recommended to use pedometer in normal bodyweight and overweight groups while accelerometer is advisable in obese subjects. A combined approach of objective and subjective PA monitoring tools is preferable.<p /> <p>Language: en</p>",
language="en",
issn="1050-642X",
doi="10.1097/JSM.0000000000000362",
url="http://dx.doi.org/10.1097/JSM.0000000000000362"
}