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Time course of exercise induced alterations in daily activity in chronic fatigue syndrome
In a previous study we demonstrated that while people with CFS had lower daily activity levels than control subjects, they were able to increase daily activity via a daily walking program. We reanalyzed our data to determine the time course of activity changes during the walking program. Daily activ...
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Formato: | Texto |
Lenguaje: | English |
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BioMed Central
2005
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1280928/ https://www.ncbi.nlm.nih.gov/pubmed/16255779 http://dx.doi.org/10.1186/1476-5918-4-10 |
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author | Black, Christopher D McCully, Kevin K |
author_facet | Black, Christopher D McCully, Kevin K |
author_sort | Black, Christopher D |
collection | PubMed |
description | In a previous study we demonstrated that while people with CFS had lower daily activity levels than control subjects, they were able to increase daily activity via a daily walking program. We reanalyzed our data to determine the time course of activity changes during the walking program. Daily activity assessed via an accelometer worn at the hip was divided into sleep, active, and walking periods. Over the first 4–10 days of walking the subjects with CFS were able to reach the prescribed activity goals each day. After this time, walking and total activity counts decreased. Sedentary controls subjects were able to maintain their daily walking and total activity goals throughout the 4 weeks. Unlike our previous interpretation of the data, we feel this new analysis suggests that CFS patients may develop exercise intolerance as demonstrated by reduced total activity after 4–10 days. The inability to sustain target activity levels, associated with pronounced worsening of symptomology, suggests the subjects with CFS had reached their activity limit. |
format | Text |
id | pubmed-1280928 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2005 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-12809282005-11-10 Time course of exercise induced alterations in daily activity in chronic fatigue syndrome Black, Christopher D McCully, Kevin K Dyn Med Commentary In a previous study we demonstrated that while people with CFS had lower daily activity levels than control subjects, they were able to increase daily activity via a daily walking program. We reanalyzed our data to determine the time course of activity changes during the walking program. Daily activity assessed via an accelometer worn at the hip was divided into sleep, active, and walking periods. Over the first 4–10 days of walking the subjects with CFS were able to reach the prescribed activity goals each day. After this time, walking and total activity counts decreased. Sedentary controls subjects were able to maintain their daily walking and total activity goals throughout the 4 weeks. Unlike our previous interpretation of the data, we feel this new analysis suggests that CFS patients may develop exercise intolerance as demonstrated by reduced total activity after 4–10 days. The inability to sustain target activity levels, associated with pronounced worsening of symptomology, suggests the subjects with CFS had reached their activity limit. BioMed Central 2005-10-28 /pmc/articles/PMC1280928/ /pubmed/16255779 http://dx.doi.org/10.1186/1476-5918-4-10 Text en Copyright © 2005 Black and McCully; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Commentary Black, Christopher D McCully, Kevin K Time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
title | Time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
title_full | Time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
title_fullStr | Time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
title_full_unstemmed | Time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
title_short | Time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
title_sort | time course of exercise induced alterations in daily activity in chronic fatigue syndrome |
topic | Commentary |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1280928/ https://www.ncbi.nlm.nih.gov/pubmed/16255779 http://dx.doi.org/10.1186/1476-5918-4-10 |
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