Journal article

Investigating children’s short-term responses to imposed or restricted physical activity

ND Ridgers, KE Lamb, A Timperio, H Brown, J Salmon

Journal of Physical Activity and Health | HUMAN KINETICS PUBL INC | Published : 2018

Abstract

Background: Little is known about whether physical activity compensation occurs. This study experimentally explored the activitystat hypothesis by investigating children’s short-term responses to imposed or restricted physical activity. Methods: A total of 156 children (46 boys; mean age = 11.3 y) from 9 schools wore an ActiGraph accelerometer for 5 days (Monday-Friday) across 2 consecutive weeks. In addition, 145 children (49% boys) simultaneously wore a SenseWear Armband. Schools were randomized to participate in 1 of the 3 experimental conditions that took place on 1 occasion: additional moderate- to vigorous-intensity physical activity (3 schools), additional light-intensity physical act..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Funding Acknowledgements

The authors gratefully acknowledge Eoin O'Connell for the development of the customized Excel macro. The authors also gratefully acknowledge the contributions of all project staff, especially Winsfred Ngan, Samuel Lai, Kara Richards, Clare Jenkinson, Ben Walker, and James Seymour. This project and N.D.R. were supported by an Australian Research Council Discovery Early Career Researcher Award (DE120101173). A.T. is supported by a Future Leader Fellowship from the National Heart Foundation of Australia (Award ID 100046); J.S. is supported by a National Health and Medical Research Council Principal Research Fellowship (NHMRC; APP1026216); and J.S. and A.T. receive funding support from the NHMRC Centre of Research Excellence (APP1057608).