Children's physical activity : Using accelerometers to validate a parent proxy record

The purpose of this study was to validate a parent proxy record of children's physical activity with CSA Model 7164 accelerometers. A parent proxy record was developed to record children's activity after school on weekdays and all day long on weekends for 7 d. Parents recorded both duration and intensity of activity (light, medium, hard and very hard). Children simultaneously wore a CSA-7164 accelerometer around their right hip, which served as the objective measurement against which the proxy record was validated. Sixty-five parent/child dyads participated in the study. The overall activity level of the children was low (