Congratulations to HALO Senior Scientist Dr. Mark Tremblay on his contributions to a new paper titled “Validity of low-cost measures for global surveillance of physical activity in pre-school children: The SUNRISE validation study” just published in the Journal of Science and Medicine in Sport. Citation details and a summary of the paper are below.
Mwase-Vuma, T. W., Janssen, X., Okely, A. D., Tremblay, M. S., Draper, C. E., Florindo, A. A., Tanaka, C., Koh, D., Hongyan, G., Tang, H. K., Chong, K. H., Löf, M., Hossain, M. S., Cross, P., Chathurangana, P. W. P., & Reilly, J. J. (2022). Validity of low-cost measures for global surveillance of physical activity in pre-school children: The SUNRISE validation study. Journal of science and medicine in sport, 25(12), 1002–1007. https://doi.org/10.1016/j.jsams.2022.10.003
To validate parent-reported child habitual total physical activity against accelerometry and three existing step-count thresholds for classifying 3 h/day of total physical activity in pre-schoolers from 13 culturally and geographically diverse countries.
Cross-sectional validation study.
We used data involving 3- and 4-year-olds from 13 middle- and high-income countries who participated in the SUNRISE study. We used Spearman’s rank-order correlation, Bland–Altman plots, and Kappa statistics to validate parent-reported child habitual total physical activity against activPAL™-measured total physical activity over 3 days. Additionally, we used Receiver Operating Characteristic Area Under the Curve analysis to validate existing step-count thresholds (Gabel, Vale, and De Craemer) using step-counts derived from activPAL™.
Of the 352 pre-schoolers, 49.1 % were girls. There was a very weak but significant positive correlation and slight agreement between parent-reported total physical activity and accelerometer-measured total physical activity (r: 0.140; p = 0.009; Kappa: 0.030). Parents overestimated their child’s total physical activity compared to accelerometry (mean bias: 69 min/day; standard deviation: 126; 95 % limits of agreement: −179, 316). Of the three step-count thresholds tested, the De Craemer threshold of 11,500 steps/day provided excellent classification of meeting the total physical activity guideline as measured by accelerometry (area under the ROC curve: 0.945; 95 % confidence interval: 0.928, 0.961; sensitivity: 100.0 %; specificity: 88.9 %).
Parent reports may have limited validity for assessing pre-schoolers’ level of total physical activity. Step-counting is a promising alternative – low-cost global surveillance initiatives could potentially use pedometers for assessing compliance with the physical activity guideline in early childhood.
The full article can be found here.