Physical activity is defined as any bodily movement produced by skeletal muscles that
results in energy expenditure. The doubly labeled water method for the measurement of total …

BACKGROUND: Physical activity may be defined broadly as" all bodily actions produced by
the contraction of skeletal muscle that increase energy expenditure above basal level." …

Accelerometry offers a practical and low cost method of objectively monitoring human
movements, and has particular applicability to the monitoring of free-living subjects …

This review focuses on the ability of different accelerometers to assess daily physical activity
as compared with the doubly labeled water (DLW) technique, which is considered the gold …

Assessing the total energy expenditure (TEE) and the levels of physical activity in free-living
conditions with non-invasive techniques remains a challenge. The purpose of the present …

The assessment of physical activity in healthy populations and in those with chronic
diseases is challenging. The aim of this systematic review was to identify whether available …

Despite widespread use of accelerometers to objectively monitor physical activity among
adults and youth, little attention has been given to older populations. The purpose of this …

Purpose To compare the validity of various physical activity measures with doubly labeled
water (DLW)–measured physical activity energy expenditure (PAEE) in free-living older …

Research into daily physical activity (PA) patterns of older adults (≥ 70 years) has primarily
relied on self-report. This study used accelerometry, an objective measure of minute-by …

Background Adequate knowledge on environmental correlates of physical activity (PA) in
older adults is needed to develop effective health promotion initiatives. However, research in …