Calculation and Comparison of Step Guidelines for Preschooler Physical Activity While Indoors.

Autor: Roman H; Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA., Redman LM; Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA., Neshteruk CD; Duke University School of Medicine, Durham, North Carolina, USA.; Duke Center for Childhood Obesity Research, Durham, North Carolina, USA., Hales D; University of North Carolina Center for Health Promotion and Disease Prevention, Chapel Hill, North Carolina, USA., Helsel B; University of Kansas Medical Center, Kansas City, Kansas, USA., Kracht CL; Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.; University of Kansas Medical Center, Kansas City, Kansas, USA.
Jazyk: angličtina
Zdroj: American journal of human biology : the official journal of the Human Biology Council [Am J Hum Biol] 2024 Nov; Vol. 36 (11), pp. e24162. Date of Electronic Publication: 2024 Sep 28.
DOI: 10.1002/ajhb.24162
Abstrakt: Objectives: Preschooler physical activity (PA) is vital for growth and development. The World Health Organization PA guidelines state preschoolers should achieve ≥ 180 min/day of Total PA (TPA) of which ≥ 60 min is moderate-to-vigorous PA (MVPA). A step/day recommendation to match these guidelines may be a more practical metric for caregivers to promote PA. The purpose of our investigation is to improve upon existing step recommendations by creating one for indoor-based activities, acknowledging where preschoolers spend most of their time, and various cut-points for PA.
Methods: In a laboratory study (Aim 1), a validated direct observation protocol was used to quantify preschooler PA intensity while performing indoor activities (n = 35). Actigraph GT3x accelerometers were placed on the waist, wrist, and ankle to measure step count. In a field study (Aim 2), habitual PA of 881 preschoolers (7113 valid days) via waist-worn accelerometers was used to assess the agreement between created guidelines (Aim 1) and other step recommendations with PA guidelines using Receiver Operating Characteristic and Area Under the Curve (ROC-AUC).
Results: In the laboratory study, calculated indoor step ranges were 6960-7440 (waist), 7200-8640 (wrist), and 7680-9120 (ankle) to align with existing PA guidance. In the field, the higher step guidelines (> 12 000) achieved very limited agreement, due to few preschoolers achieving this metric. The 6000 step/day guidelines had the highest agreement (AUCs: TPA: 0.637; MVPA: 0.751; TPA + MVPA: 0.761) with PA guideline.
Conclusions: When preschoolers are indoors, 6000 steps may be the minimum for adequate PA.
(© 2024 Wiley Periodicals LLC.)
Databáze: MEDLINE
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