Results from several objective monitoring studies suggest that children’s physical activity (PA) patterns may change across seasons; however, it is not well understood how PA patterns in the childcare setting may change across seasons. Purpose To prospectively track preschoolers’ PA patterns during childcare while investigating for seasonal differences in ...
Clinically assessed gait speed is a valuable test of older adults’ functioning and an important predictor of adverse outcomes including disability, cognitive decline, falls, institutionalization, and mortality. It is logical to pursue correlates of gait speed. Purpose To evaluate the relationship between accelerometer-determined indicators of free-living walking volume (steps/day, ...
In recent years, the risks associated with sedentary behavior (i.e. obesity, Type II diabetes) have become more recognized. Knowledge of the time-of-day when individuals are most sedentary may be beneficial when designing program interventions to promote and increase physical activity. Purpose To examine time-of-day patterns of sedentary behavior in ...
Depression is consistently associated with overweight and obesity. Studies have shown that physical activity can prevent and treat depression. Some evidence also suggests nutritional interventions may reduce depression risk, symptoms and severity. However, less is known about whether depressive symptoms are associated with sedentary behavior and poor dietary intake. Purpose ...
Background Accelerometers are now the method of choice to objectively assess activity in young children. While numerous cut-points exist for preschoolers, cut points for children aged 1-3 years are limited. Purpose To determine ActiGraph GT1M cut-points for sedentary (SED), light (LPA) and moderate-vigorous physical activity (MVPA) in toddlers. Methods ...
Purpose To examine the test-retest reliability and criterion-related validity of the Yale Physical Activity Survey for Older Adults (YPAS) and Community Health Activities Model Program for Seniors (CHAMPS) survey to assess sedentary behavior (SB) in older adults. Methods Adults aged 65 years and older were recruited to participate in a larger ...
Prior measures of sedentary behavior have not systematically measured sedentary activities in multiple domains and over various routinely performed daily sedentary activities with a user-friendly device. The Sedentary Behavior Record (SBR) was designed to fill the gap in the literature in measuring sedentary behavior. The SBR is an adaptation of ...
Accelerometers have the advantage of providing objective measures of both physical activity performed at various intensities and of sedentary time. ActiGraph accelerometers are widely used, however with technological advancements new models are periodically released. The GT3X is the most recent model. Although research has shown previous ActiGraph models to ...
Purpose To examine the accuracy of three measurement devices (ActiGraph GT3x+, ActivPAL, and Sensewear Armband) in assessing sedentary behavior and light-intensity physical activity (PA) against a referent measure of oxygen uptake (Oxycon Mobile). Methods 16 adults (8 males, 8 females) wore the four measurement devices while performing 7 activities (walking at 1.0 mph, 1.5 mph, 2.0 ...
The International Physical Activity Questionnaire (IPAQ) is one of the most widely used questionnaires to assess physical activity (PA). Validation studies for the IPAQ have been executed, but still there is a need for studies comparing absolute values between IPAQ and accelerometer in large population studies. Purpose: To compare PA ...