Browsing Conference Papers by Author "Kemper, Han C.G."
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Self-reported physical activity is not a valid method for measuring physical activity in 15 year old South African boys and girls
Monyeki, Makama Andries; Moss, Sarah J.; Kemper, Han C.G.; Twisk, Jos W.R. (Human Kinetics, 2018)Valid instruments for the assessment of physical activity remains a challenge in field studies. This study determine the level of agreement between objectively measured physical activity by ActiHeart® and the ...