Document Detail


Protocols for evaluating equivalency of accelerometry-based activity monitors.
MedLine Citation:
PMID:  22157773     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
ABSTRACT: A wide array of accelerometer-based activity monitors has been developed to facilitate objective monitoring of physical activity behaviors, but it has proven difficult to equate outputs from different monitors. On the surface, commercially available monitors seem to be performing the same basic task-monitoring total body acceleration. However, differences in sensor properties and internal data processing have made it difficult to directly compare output from different monitors. In recent years, many new competing technologies have been released into the market, compounding the challenge of evaluating monitor equivalency and the relative strengths and limitations of different monitors. To advance physical activity assessment and improve our ability to compare results across studies using different monitors, it is important to conduct functional equivalency studies in a standardized and systematic way. This article summarizes issues associated with monitor equivalency and proposes methods for standardization and quality control in future research.
Authors:
Gregory J Welk; James McClain; Barbara E Ainsworth
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  44     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2011-12-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  S39-49     Citation Subset:  IM; S    
Affiliation:
1Department of Kinesiology, College of Human Sciences, Iowa State University, Ames, IA; 2Risk Factor Monitoring and Methods Branch, Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD; 3Healthy Lifestyles Research Center, College of Nursing and Health Innovation, Arizona State University, Phoenix, AZ; and 4Program in Exercise and Wellness, College of Nursing and Health Innovation, Arizona State University, Phoenix, AZ.
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