Measurement of Sedentary Behaviors or "downtime" in Rett Syndrome
MetadataShow full item record
© 2017 SAGE Publications. This study aimed to validate measures of sedentary time in individuals with Rett syndrome. Twenty-six individuals (median [IQR] age 16.0 (9.4-20.6) years) wore an activPAL accelerometer during video-taped activities and agreement was determined between sedentary time determined by the activPAL and observation. For 11 individuals (median [IQR] age 14.5 (11.5-25.6) years), linear regression was used to determine the relationship between sedentary time recorded on the modified Bouchard activity record diary card and measured using the activPAL. In comparison to observation, the activPAL accurately measured duration of sedentary time with a mean difference (limit of agreement) of -1.0 (6.3) minutes. The duration of Bouchard activity record downtime accounted for 73% of the variance of sedentary time measured by the activPAL (coefficient 0.762, 95% CI 0.413 to 1.111). These data provide clinicians and caregivers with capacity to investigate strategies that would aim to increase activity in the nonexercise component of the activity continuum.
Showing items related by title, author, creator and subject.
Clark, B.; Winkler, E.; Healy, Genevieve; Gardiner, P.; Dunstan, D.; Owen, N.; Reeves, M. (2013)Purpose: Past-day recall rather than recall of past week or a usual/typical day may improve the validity of self-reported sedentary time measures. This study examined the test–retest reliability, criterion validity, and ...
Edwardson, C.; Winkler, E.; Bodicoat, D.; Yates, T.; Davies, M.; Dunstan, D.; Healy, Genevieve (2015)Research indicates that high levels of sedentary behavior (sitting or lying with low energy expenditure) are adversely associated with health. A key factor in improving our understanding of the impact of sedentary behavior ...
Chastin, S.; Winkler, E.; Eakin, E.; Gardiner, P.; Dunstan, D.; Owen, N.; Healy, Genevieve (2015)The aim of this study was to examine the sensitivity to change of measures of sedentary behavior derived from body worn sensors in different intervention designs. Results from two intervention studies: Stand up for Your ...