There are no standard procedures for identifying wake wear, sleep wear and non-wear time from the 24-h accelerometer recordings. Participant diaries increase participant burden and frequently have missing values. The Choi algorithm identifies 90-min consecutive zero counts as non-wear time, allowing for 2 minutes of non-zero counts, thus possibly ignoring short ...
Accelerometers worn at the hip are used to assess physical activity, but non-wear can limit such studies. Wearing the monitor on the wrist may enhance compliance, but estimates of physical activity levels may not be comparable between hip worn and wrist worn monitors. Purpose To examine agreement between wrist worn ...
Physical inactivity is a well documented risk factor for coronary heart disease and is associated with increased risk for other chronic diseases, including obesity, Type II diabetes mellitus, hypertension, colon cancer, depression, and osteoporosis. Despite evidence on the social, health, and personal benefits of physical activity, many people still choose ...
Purpose To use objective monitoring of physical activity to determine the percentages of children and youth in a population that met physical activity guidelines. Methods A total of 375 students in grades 1–12 wore an accelerometer (CSA 7164) for seven consecutive days. Bouts of continuous activity and accumulation of minutes spent in physical ...