Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 2067-2072 |
| Journal | Journal of Sports Sciences |
| Volume | 35 |
| Issue number | 21 |
| Early online date | 14 Nov 2016 |
| DOIs | |
| Publication status | E-pub ahead of print - 14 Nov 2016 |
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Comparison of children's free-living physical activity derived from wrist and hip raw accelerations during the segmented week. / Noonan, Robert; Boddy, L.M.; Kim, Y; Knowles, Z.R.; Fairclough, Stuart.
In: Journal of Sports Sciences, Vol. 35, No. 21, 14.11.2016, p. 2067-2072.Research output: Contribution to journal › Article
TY - JOUR
T1 - Comparison of children's free-living physical activity derived from wrist and hip raw accelerations during the segmented week
AU - Noonan, Robert
AU - Boddy, L.M.
AU - Kim, Y
AU - Knowles, Z.R.
AU - Fairclough, Stuart
PY - 2016/11/14
Y1 - 2016/11/14
N2 - This study assessed children’s physical activity (PA) levels derived from wrist-worn GENEActiv and hip-worn ActiGraph GT3X+ accelerometers and examined the comparability of PA levels between the two devices throughout the segmented week. One hundred twenty nine 9-10 year old children (79 girls) wore a GENEActiv (GAwrist) and ActiGraph GT3X+ (AGhip) accelerometer on the left wrist and right hip respectively for seven days. Mean minutes of light PA (LPA) and moderate-to-vigorous PA (MVPA) per weekday (whole-day, before-school, school and after-school) and weekend day (whole-day, morning and afternoon-evening) segments were calculated, and expressed as percentage of segment time. Repeated measures ANOVA examined differences in LPA and MVPA between GAwrist and AGhip for each time segment. Bland–Altman plots assessed between-device agreement for LPA and MVPA for whole weekday and whole weekend day segments. Correlations between GAwrist and AGhip were weak for LPA (r=0.18-0.28), but strong for MVPA (r=0.80-0.86). LPA and MVPA levels during all weekday and weekend day segments were significantly higher for GAwrist than AGhip (p<0.001). The largest inter-device percent difference of 26% was observed in LPA during the school day segment. Our data suggest that correction factors are needed to improve raw PA level comparability between GAwrist and AGhip.
AB - This study assessed children’s physical activity (PA) levels derived from wrist-worn GENEActiv and hip-worn ActiGraph GT3X+ accelerometers and examined the comparability of PA levels between the two devices throughout the segmented week. One hundred twenty nine 9-10 year old children (79 girls) wore a GENEActiv (GAwrist) and ActiGraph GT3X+ (AGhip) accelerometer on the left wrist and right hip respectively for seven days. Mean minutes of light PA (LPA) and moderate-to-vigorous PA (MVPA) per weekday (whole-day, before-school, school and after-school) and weekend day (whole-day, morning and afternoon-evening) segments were calculated, and expressed as percentage of segment time. Repeated measures ANOVA examined differences in LPA and MVPA between GAwrist and AGhip for each time segment. Bland–Altman plots assessed between-device agreement for LPA and MVPA for whole weekday and whole weekend day segments. Correlations between GAwrist and AGhip were weak for LPA (r=0.18-0.28), but strong for MVPA (r=0.80-0.86). LPA and MVPA levels during all weekday and weekend day segments were significantly higher for GAwrist than AGhip (p<0.001). The largest inter-device percent difference of 26% was observed in LPA during the school day segment. Our data suggest that correction factors are needed to improve raw PA level comparability between GAwrist and AGhip.
U2 - https://doi.org/10.1080/02640414.2016.1255347
DO - https://doi.org/10.1080/02640414.2016.1255347
M3 - Article
VL - 35
SP - 2067
EP - 2072
JO - Journal of Sports Sciences
JF - Journal of Sports Sciences
SN - 0264-0414
IS - 21
ER -