Measurement of Active and Sedentary Behavior in Context of Large Epidemiologic Studies. Issue 2 (February 2018)

• Record Type: Journal Article
• Authors: MATTHEWS, CHARLES E.; KOZEY KEADLE, SARAH; MOORE, STEVEN C.; SCHOELLER, DALE S.; CARROLL, RAYMOND J.; TROIANO, RICHARD P.; SAMPSON, JOSHUA N.
• Is Part Of: Medicine and science in sports and exercise. Volume 50:Issue 2(2018)
• Publication Date: 2018-02
• Subjects: ACCELEROMETER -- CALIBRATION -- EXERCISE -- MEASUREMENT ERROR -- POSTURE -- SITTING; Sports medicine -- Periodicals; Exercise -- Physiological aspects -- Periodicals; Exercise -- Health aspects -- Periodicals; 612.044
• DOI: 10.1249/MSS.0000000000001428
• Languages: English
• ISSNs: 0195-9131

Abstract

ABSTRACT: Introduction/Purpose: To assess the utility of measurement methods that may be more accurate and precise than traditional questionnaire-based estimates of habitual physical activity and sedentary behavior we compared the measurement properties of a past year questionnaire (AARP) and more comprehensive measures: an internet-based 24-h recall (ACT24), and a variety of estimates from an accelerometer (ActiGraph). Methods: Participants were 932 adults (50–74 yr) in a 12-month study that included reference measures of energy expenditure from doubly labeled water (DLW) and active and sedentary time via activPAL. Results: Accuracy at the group level (mean differences) was generally better for both ACT24 and ActiGraph than the AARP questionnaire. The AARP accuracy for energy expenditure ranged from −4% to −13% lower than DLW, but its accuracy was poorer for physical activity duration (−48%) and sedentary time (−18%) versus activPAL. In contrast, ACT24 accuracy was within 3% to 10% of DLW expenditure measures and within 1% to 3% of active and sedentary time from activPAL. For ActiGraph, accuracy for energy expenditure was best for the Crouter 2-regression method (−2% to −7%), and for active and sedentary time the 100 counts per minute cutpoint was most accurate (−1% to 2%) at the group level. One administration of the AARP questionnaire was significantly correlated with long-term average from the reference measures (ρTX = 0.16–0.34) overall, but four ACT24 recalls had higher correlations (ρTX = 0.48–0.60), as did 4 d of ActiGraph assessment (ρTX = 0.54–0.87). Conclusions: New exposure assessments suitable for use in large epidemiologic studies (ACT24, ActiGraph) were more accurate and had higher correlations than a traditional questionnaire. Use of better more comprehensive measures in future epidemiologic studies could yield new etiologic discoveries and possibly new opportunities for prevention. Abstract : Supplemental digital content is available in the text.