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eBook details

• Title: Monitor Placement, Sources of Variance and Reliability of Free-Living Physical Activity: A Pilot Investigation (Original RESEARCH Article) (Report)
• Author : South African Journal of Sports Medicine
• Release Date : January 01, 2009
• Genre: Health & Fitness,Books,Health, Mind & Body,
• Pages : * pages
• Size : 258 KB

Description

Introduction The use of accelerometers by researchers to objectively monitor physical activity has seen a dramatic increase since 1997. (1) With the greater use of uni-axial accelerometers in large field studies, (2) important questions arise relating to possible sources of measurement error, such as monitor placement. (3,4) To date a number of laboratory-based studies have considered the effects of different placement positions on the output of uni-axial accelerometers (5,6) and the intra- and inter-instrument variability of uni-axial accelerometers using mechanical settings (7-9) or motorised treadmill trials. (7,10-13) Few studies have employed free-living protocols when evaluating the effect of placement position of movement monitors or the inter-instrument reliability of movement monitors. (5,14,15)

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