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Performance Of The Wrist-Worn Actigraph Gt3x + In Measuring Physical Activity In Older Women, Michal Talley Smith
Performance Of The Wrist-Worn Actigraph Gt3x + In Measuring Physical Activity In Older Women, Michal Talley Smith
Theses and Dissertations
Introduction: Being able to accurately measure physical activity intensity and energy expenditure is crucial to understanding the role physical activity plays in lowering the risk for disease. This thesis aims to examine the performance of the wrist-worn GT3X+ in measuring PAEE and classifying activity intensity in a healthy non-obese population of older women. Methods: Baseline data collected in the Women’s Energy Expenditure in Walking Programs Study (ClinicalTrials.gov identifier: NCT01722136) were used. PAEE was measured concurrently for 2 weeks using the doubly labeled water method in combination with indirect calorimetry, the GT3X+ ActiGraph accelerometer (GT3X+, ActiGraph LLC, Pensacola, FL), and the …