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Accelerometer-Determined Physical Behavior Metrics And Their Associations With Sarcopenia Among Oldest-Old Adults, Eric M. Eberl
Accelerometer-Determined Physical Behavior Metrics And Their Associations With Sarcopenia Among Oldest-Old Adults, Eric M. Eberl
Masters Theses
INTRODUCTION: Sarcopenia is a loss of muscle function and muscle mass which frequently occurs among the oldest-old adult population (aged 85+ years). The analysis of accelerometer-determined physical behavior volumes and patterns of oldest-old adults might provide novel insights into the associations with sarcopenia and its components. METHODS: A total of 145 participants in the primary sample and 87 participants in the subsample with a mean age of 88.2 (2.5) years from the Health, Aging, and Body Composition study cohort provided cross-sectional data of handgrip strength, appendicular lean mass, gait speed, and accelerometry. Probable, confirmed, and severe sarcopenia were assessed based …
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 …