Purpose: Knowledge of youth physical activity (PA) patterns throughout the week is helpful to plan effective PA interventions. The purpose of this study was to determine time spent in moderate-to-vigorous PA (MVPA) across a typical academic week, with specific attention to activity on weekends, weekdays, outside of school, in school (...
Purpose: The purpose of this study was to explore differences in daily physical activity (PA) patterns between adolescents meeting and not meeting the minimum 60-minute daily moderate to vigorous PA (MVPA) guideline. Methods: 388 adolescents (11 – 13 years) were asked to wear an Actigraph accelerometer for a 9-day period. Data sets were included ...
Purpose: Compared to normal weigh and fit adolescents, overweight and unfit adolescents are more likely to develop cardiovascular disease in adulthood. Despite this, there is insufficient evidence regarding the effectiveness of general schoolbased interventions in these high-risk groups. We assessed if overweight/obese and unfit adolescents responded differently to a ...
Purpose: To investigate the relationship between environmental perceptions and step counts in older adults living in retirement communities. Methods: Older adults (average age 83) were recruited from 11 retirement communities randomized to an attention control condition or a walking intervention that addressed environmental barriers. 7-day step counts were measured at baseline and 3 ...
Purpose: Ecological models of physical activity (PA) have shown influences on behavior at each level of the model. Ecological models for sedentary time (ST) have not been tested. This study aimed to examine the independent association of personal, social and environmental factors with objectively-measured sedentary time in a large, heterogeneous ...
Purpose: Most studies of neighbourhood features examine singular neighbourhood attributes, which may pattern in different ways. This study aimed to identify typologies of neighbourhood attributes and their associations with physical activity among children. Methods: The homes of 808 children aged 5-6 and 10-12 years were mapped in a Geographic Information System. ...
Purpose: The importance of greenspace for young people’s moderate-vigorous physical activity (MVPA) is still unknown. Few studies exist which combine accelerometry, Global Positioning System (GPS), and Geographic Information Systems (GIS) among youths. This study investigated the relationship between (i) amount of neighbourhood greenspace and MVPA, and (ii) MVPA time ...
Purpose: To assess whether the relationship of neighborhood walkability with physically active and sedentary time varied by weekday or weekend. Working adults may be less influenced by their home neighborhood environment during the work week when they spend more time away from home. Methods: Adults were recruited from neighborhoods in ...
Purpose: To examine opportunities for physical activity (PA) at child care and how they relate to the amount and intensity of PA. Methods: 44 children (mean age 4.1 yrs, 57% girls) from 5 centers wore accelerometers and were observed for average 7.6 hours/ day (total 29 days). Observers coded activities into: 1) Not an active play opportunity, 2) ...
Purpose: Regular physical activity (PA) in children is associated with improved health. The aims of this study were to describe the patterns of daily PA and to assess compliance with recommendations for total physical activity in preschool children. Methods: This study sample comprised 856 preschool children, aged 3 to 6 years. Children wore ...