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Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men
BACKGROUND: Physical activity (including exercise) is prescribed for health and there are various recommendations that can be used to gauge physical activity status. The objective of the current study was to determine whether twelve commonly-used physical activity recommendations similarly classifie...
Autores principales: | , , , , , |
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Formato: | Texto |
Lenguaje: | English |
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Public Library of Science
2009
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2629570/ https://www.ncbi.nlm.nih.gov/pubmed/19183812 http://dx.doi.org/10.1371/journal.pone.0004337 |
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author | Thompson, Dylan Batterham, Alan M. Markovitch, Daniella Dixon, Natalie C. Lund, Adam J. S. Walhin, Jean-Philippe |
author_facet | Thompson, Dylan Batterham, Alan M. Markovitch, Daniella Dixon, Natalie C. Lund, Adam J. S. Walhin, Jean-Philippe |
author_sort | Thompson, Dylan |
collection | PubMed |
description | BACKGROUND: Physical activity (including exercise) is prescribed for health and there are various recommendations that can be used to gauge physical activity status. The objective of the current study was to determine whether twelve commonly-used physical activity recommendations similarly classified middle-aged men as sufficiently active for general health. METHODS AND FINDINGS: We examined the commonality in the classification of physical activity status between twelve variations of physical activity recommendations for general health in ninety men aged 45–64 years. Physical activity was assessed using synchronised accelerometry and heart rate. Using different guidelines but the same raw data, the proportion of men defined as active ranged from to 11% to 98% for individual recommendations (median 73%, IQR 30% to 87%). There was very poor absolute agreement between the recommendations, with an intraclass correlation coefficient (A,1) of 0.24 (95% CI, 0.15 to 0.34). Only 8% of men met all 12 recommendations and would therefore be unanimously classified as active and only one man failed to meet every recommendation and would therefore be unanimously classified as not sufficiently active. The wide variability in physical activity classification was explained by ostensibly subtle differences between the 12 recommendations for thresholds related to activity volume (time or energy), distribution (e.g., number of days of the week), moderate intensity cut-point (e.g., 3 vs. 4 metabolic equivalents or METs), and duration (including bout length). CONCLUSIONS: Physical activity status varies enormously depending on the physical activity recommendation that is applied and even ostensibly small differences have a major impact. Approximately nine out of every ten men in the present study could be variably described as either active or not sufficiently active. Either the effective dose or prescription that underlies each physical activity recommendation is different or each recommendation is seeking the same prescriptive outcome but with variable success. |
format | Text |
id | pubmed-2629570 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2009 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-26295702009-02-02 Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men Thompson, Dylan Batterham, Alan M. Markovitch, Daniella Dixon, Natalie C. Lund, Adam J. S. Walhin, Jean-Philippe PLoS One Research Article BACKGROUND: Physical activity (including exercise) is prescribed for health and there are various recommendations that can be used to gauge physical activity status. The objective of the current study was to determine whether twelve commonly-used physical activity recommendations similarly classified middle-aged men as sufficiently active for general health. METHODS AND FINDINGS: We examined the commonality in the classification of physical activity status between twelve variations of physical activity recommendations for general health in ninety men aged 45–64 years. Physical activity was assessed using synchronised accelerometry and heart rate. Using different guidelines but the same raw data, the proportion of men defined as active ranged from to 11% to 98% for individual recommendations (median 73%, IQR 30% to 87%). There was very poor absolute agreement between the recommendations, with an intraclass correlation coefficient (A,1) of 0.24 (95% CI, 0.15 to 0.34). Only 8% of men met all 12 recommendations and would therefore be unanimously classified as active and only one man failed to meet every recommendation and would therefore be unanimously classified as not sufficiently active. The wide variability in physical activity classification was explained by ostensibly subtle differences between the 12 recommendations for thresholds related to activity volume (time or energy), distribution (e.g., number of days of the week), moderate intensity cut-point (e.g., 3 vs. 4 metabolic equivalents or METs), and duration (including bout length). CONCLUSIONS: Physical activity status varies enormously depending on the physical activity recommendation that is applied and even ostensibly small differences have a major impact. Approximately nine out of every ten men in the present study could be variably described as either active or not sufficiently active. Either the effective dose or prescription that underlies each physical activity recommendation is different or each recommendation is seeking the same prescriptive outcome but with variable success. Public Library of Science 2009-02-02 /pmc/articles/PMC2629570/ /pubmed/19183812 http://dx.doi.org/10.1371/journal.pone.0004337 Text en Thompson et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Thompson, Dylan Batterham, Alan M. Markovitch, Daniella Dixon, Natalie C. Lund, Adam J. S. Walhin, Jean-Philippe Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men |
title | Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men |
title_full | Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men |
title_fullStr | Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men |
title_full_unstemmed | Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men |
title_short | Confusion and Conflict in Assessing the Physical Activity Status of Middle-Aged Men |
title_sort | confusion and conflict in assessing the physical activity status of middle-aged men |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2629570/ https://www.ncbi.nlm.nih.gov/pubmed/19183812 http://dx.doi.org/10.1371/journal.pone.0004337 |
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