Physical Activity Assessment with the ActiGraph GT3X and Doubly Labeled Water

被引:109
作者
Chomistek, Andrea K. [1 ]
Yuan, Changzheng [2 ,3 ]
Matthews, Charles E. [4 ]
Troiano, Richard P. [5 ]
Bowles, Heather R. [6 ]
Rood, Jennifer [7 ]
Barnett, Junaidah B. [2 ,8 ,9 ]
Willett, Walter C. [2 ,3 ,10 ,11 ]
Rimm, Eric B. [2 ,3 ,10 ,11 ]
Bassett, David R., Jr. [12 ]
机构
[1] Indiana Univ, Sch Publ Hlth, Dept Epidemiol & Biostat, 1025 E 7th St,Room C101, Bloomington, IN 47405 USA
[2] Harvard TH Chan Sch Publ Hlth, Dept Nutr, Boston, MA USA
[3] Harvard TH Chan Sch Publ Hlth, Dept Epidemiol, Boston, MA USA
[4] NCI, Div Canc Epidemiol & Genet, Bethesda, MD 20892 USA
[5] NCI, Div Canc Control & Populat Sci, Bethesda, MD 20892 USA
[6] NCI, Div Canc Prevent, Bethesda, MD 20892 USA
[7] Pennington Biomed Res Ctr, 6400 Perkins Rd, Baton Rouge, LA 70808 USA
[8] Tufts Univ, Jean Mayer USDA Human Nutr Res Ctr Aging, Boston, MA 02111 USA
[9] Tufts Univ, Friedman Sch Nutr Sci & Policy, Boston, MA 02111 USA
[10] Brigham & Womens Hosp, Dept Med, Channing Div Network Med, 75 Francis St, Boston, MA 02115 USA
[11] Harvard Med Sch, Boston, MA USA
[12] Univ Tennessee, Dept Kinesiol Recreat & Sport Studies, Knoxville, TN USA
关键词
ACCELEROMETER; ENERGY EXPENDITURE; EXERCISE; WEARABLE MONITORS; ENERGY-EXPENDITURE; ACCELEROMETERS; CALIBRATION; MORTALITY; VALIDITY; FILTER; TIME;
D O I
10.1249/MSS.0000000000001299
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
Purpose: To compare the degree to which four accelerometer metrics-total activity counts per day (TAC per day), steps per day (steps per day), physical activity energy expenditure (PAEE) (kcal/kg(-1) Id(-1)), and moderateto vigorous-intensity physical activity (MVPA) (min/d(-1))-were correlated with PAEE measured by doubly labeled water (DLW). Additionally, accelerometer metrics based on vertical axis counts and triaxial counts were compared. Methods: This analysis included 684 women and 611 men age 43 to 83 yr. Participants wore the Actigraph GT3X on the hip for 7 d twice during the study and the average of the two measurements was used. Each participant also completed one DLW measurement, with a subset having a repeat. PAEE was estimated by subtracting resting metabolic rate and the thermic effect of food from total daily energy expenditure estimated by DLW. Partial Spearman correlations were used to estimate associations between PAEE and each accelerometer metric. Results: Correlations between the accelerometer metrics and DLW-determined PAEE were higher for triaxial counts than vertical axis counts. After adjusting for weight, age, accelerometer wear time, and fat free mass, the correlation between TAC per day based on triaxial counts and DLW-determined PAEE was 0.44 in women and 0.41 in men. Correlations for steps per day and accelerometer-estimated PAEE with DLW-determined PAEE were similar. After adjustment for within-person variation in DLW-determined PAEE, the correlations for TAC per day increased to 0.61 and 0.49, respectively. Correlations between MVPA and DLW-determined PAEE were lower, particularly for modified bouts of Q10 min. Conclusions: Accelerometer measures that represent total activity volume, including TAC per day, steps per day, and PAEE, were more highly correlated with DLW-determined PAEE than MVPA using traditional thresholds and should be considered by researchers seeking to reduce accelerometer data to a single metric.
引用
收藏
页码:1935 / 1944
页数:10
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