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Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome

Individuals with chronic fatigue syndrome (CFS) have been shown to have reduced activity levels associated with heightened feelings of fatigue. Previous research has demonstrated that exercise training has beneficial effects on fatigue-related symptoms in individuals with CFS. PURPOSE: The aim of th...

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Autores principales: Black, Christopher D, O'Connor, Patrick J, McCully, Kevin K
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2005
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC555551/
https://www.ncbi.nlm.nih.gov/pubmed/15745455
http://dx.doi.org/10.1186/1476-5918-4-3
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author Black, Christopher D
O'Connor, Patrick J
McCully, Kevin K
author_facet Black, Christopher D
O'Connor, Patrick J
McCully, Kevin K
author_sort Black, Christopher D
collection PubMed
description Individuals with chronic fatigue syndrome (CFS) have been shown to have reduced activity levels associated with heightened feelings of fatigue. Previous research has demonstrated that exercise training has beneficial effects on fatigue-related symptoms in individuals with CFS. PURPOSE: The aim of this study was to sustain an increase in daily physical activity in CFS patients for 4 weeks and assess the effects on fatigue, muscle pain and overall mood. METHODS: Six CFS and seven sedentary controls were studied. Daily activity was assessed by a CSA accelerometer. Following a two week baseline period, CFS subjects were asked to increase their daily physical activity by 30% over baseline by walking a prescribed amount each day for a period of four weeks. Fatigue, muscle pain and overall mood were reported daily using a 0 to 100 visual analog scale and weekly using the Profile of Mood States (Bipolar) questionnaire. RESULTS: CFS patients had significantly lower daily activity counts than controls (162.5 ± 51.7 × 10(3 )counts/day vs. 267.2 ± 79.5 × 10(3 )counts/day) during a 2-week baseline period. At baseline, the CFS patients reported significantly (P < 0.01) higher fatigue and muscle pain intensity compared to controls but the groups did not differ in overall mood. CFS subjects increased their daily activity by 28 ± 19.7% over a 4 week period. Overall mood and muscle pain worsened in the CFS patients with increased activity. CONCLUSION: CFS patients were able to increase their daily physical activity for a period of four weeks. In contrast to previous studies fatigue, muscle pain, and overall mood did not improve with increased activity. Increased activity was not presented as a treatment which may account for the differential findings between this and previous studies. The results suggest that a daily "activity limit" may exist in this population. Future studies on the impact of physical activity on the symptoms of CFS patients are needed.
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spelling pubmed-5555512005-03-25 Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome Black, Christopher D O'Connor, Patrick J McCully, Kevin K Dyn Med Research Individuals with chronic fatigue syndrome (CFS) have been shown to have reduced activity levels associated with heightened feelings of fatigue. Previous research has demonstrated that exercise training has beneficial effects on fatigue-related symptoms in individuals with CFS. PURPOSE: The aim of this study was to sustain an increase in daily physical activity in CFS patients for 4 weeks and assess the effects on fatigue, muscle pain and overall mood. METHODS: Six CFS and seven sedentary controls were studied. Daily activity was assessed by a CSA accelerometer. Following a two week baseline period, CFS subjects were asked to increase their daily physical activity by 30% over baseline by walking a prescribed amount each day for a period of four weeks. Fatigue, muscle pain and overall mood were reported daily using a 0 to 100 visual analog scale and weekly using the Profile of Mood States (Bipolar) questionnaire. RESULTS: CFS patients had significantly lower daily activity counts than controls (162.5 ± 51.7 × 10(3 )counts/day vs. 267.2 ± 79.5 × 10(3 )counts/day) during a 2-week baseline period. At baseline, the CFS patients reported significantly (P < 0.01) higher fatigue and muscle pain intensity compared to controls but the groups did not differ in overall mood. CFS subjects increased their daily activity by 28 ± 19.7% over a 4 week period. Overall mood and muscle pain worsened in the CFS patients with increased activity. CONCLUSION: CFS patients were able to increase their daily physical activity for a period of four weeks. In contrast to previous studies fatigue, muscle pain, and overall mood did not improve with increased activity. Increased activity was not presented as a treatment which may account for the differential findings between this and previous studies. The results suggest that a daily "activity limit" may exist in this population. Future studies on the impact of physical activity on the symptoms of CFS patients are needed. BioMed Central 2005-03-03 /pmc/articles/PMC555551/ /pubmed/15745455 http://dx.doi.org/10.1186/1476-5918-4-3 Text en Copyright © 2005 Black et al; 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 Research
Black, Christopher D
O'Connor, Patrick J
McCully, Kevin K
Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
title Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
title_full Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
title_fullStr Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
title_full_unstemmed Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
title_short Increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
title_sort increased daily physical activity and fatigue symptoms in chronic fatigue syndrome
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC555551/
https://www.ncbi.nlm.nih.gov/pubmed/15745455
http://dx.doi.org/10.1186/1476-5918-4-3
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