Measurement of Physical Activity with Wrist-Worn ActiGraph GT3X+ in Older Women.

ABSTRACT: Higher wear compliance has been seen with wrist placed accelerometers versus hip placed. Performance of wrist placed ActiGraph GT3X+ accelerometer (GT3X+, ActiGraph LLC, Pensacola, FL) in assessing physical activity (PA) remains unclear.

Purpose

This study examined GT3X+'s performance in measuring PA energy expenditure (PAEE) and classifying PA intensity in older women.

Methods

Women [n = 89, age = 65.6 (4.3)] wore GT3X+ and SenseWear Armband Mini (SWAM, BodyMedia Inc. Pittsburgh, PA) for 2 weeks. Concurrently, doubly labeled water (DLW) determined total daily energy expenditure (TDEE). Resting energy expenditure (REE) was determined by Indirect Calorimetry. Data was processed using manufacturer-provided software. Bivariate correlations, Intra Class Correlations, and B

SUBMITTER: Smith MT 

PROVIDER: S-EPMC9797004 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature