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Perceived exertion in fatiguing illness: civilians with chronic fatigue syndrome.

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Title: Perceived exertion in fatiguing illness: civilians with chronic fatigue syndrome.
Authors: Cook DB (AUTHOR), Nagelkirk PR (AUTHOR), Peckerman A (AUTHOR), Poluri A (AUTHOR), LaManca JJ (AUTHOR), Natelson BH (AUTHOR)
Source: Medicine & Science in Sports & Exercise. Apr2003, Vol. 35 Issue 4, p563-568. 6p.
Abstract: PURPOSE: It has been reported that ratings of perceived exertion (RPE) are elevated in chronic fatigue syndrome (CFS). However, methodological limitations have rendered this conclusion suspect. The purpose of the present investigation was to examine RPE during exercise in civilians with CFS by comparing subjects at both absolute exercise stage and relative oxygen consumption reference criteria. METHODS: A sample of 39 civilian females (N = 19 CFS, 34 +/- 7 yr; N = 20 healthy controls, 33 +/- 7 yr) underwent a maximal exercise test on a treadmill. RPE were obtained during the last 15 s of each 3-min stage using Borg's 6-20 scale. RESULTS: There were no significant differences in peak VO(2), RER, or RPE. However, controls exercised longer (20.0 +/- 1.1 vs 15.9 +/- 1.1 min, P = 0.01, healthy vs CFS) and had higher peak HR (183 +/- 3 vs 174 +/- 2 bpm, P = 0.03, healthy vs CFS). Civilians with CFS reported higher RPE at stages 3 through 5 compared with controls (F(3,111)= 3.6,P = 0.017). Preexercise fatigue ratings were not a significant predictor of perceived exertion during exercise. There were no group differences (F(1,37)= 1.9, P = 0.17) when RPE were expressed relative to peak VO(2). CONCLUSIONS: Our results show that RPE are greater in civilians with CFS when the data are expressed in terms of absolute exercise intensity. However, by examining RPE relative to a common maximum (i.e., peak VO(2) no differences were observed. The findings of the present investigation challenge the notion that RPE are dysregulated in CFS. [ABSTRACT FROM AUTHOR]
Copyright of Medicine & Science in Sports & Exercise is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Education Research Complete
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DbLabel: Education Research Complete
An: 106694450
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  Data: Perceived exertion in fatiguing illness: civilians with chronic fatigue syndrome.
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  Data: <searchLink fieldCode="AR" term="%22Cook+DB%22">Cook DB</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nagelkirk+PR%22">Nagelkirk PR</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peckerman+A%22">Peckerman A</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Poluri+A%22">Poluri A</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22LaManca+JJ%22">LaManca JJ</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Natelson+BH%22">Natelson BH</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Medicine+%26+Science+in+Sports+%26+Exercise%22">Medicine & Science in Sports & Exercise</searchLink>. Apr2003, Vol. 35 Issue 4, p563-568. 6p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: PURPOSE: It has been reported that ratings of perceived exertion (RPE) are elevated in chronic fatigue syndrome (CFS). However, methodological limitations have rendered this conclusion suspect. The purpose of the present investigation was to examine RPE during exercise in civilians with CFS by comparing subjects at both absolute exercise stage and relative oxygen consumption reference criteria. METHODS: A sample of 39 civilian females (N = 19 CFS, 34 +/- 7 yr; N = 20 healthy controls, 33 +/- 7 yr) underwent a maximal exercise test on a treadmill. RPE were obtained during the last 15 s of each 3-min stage using Borg's 6-20 scale. RESULTS: There were no significant differences in peak VO(2), RER, or RPE. However, controls exercised longer (20.0 +/- 1.1 vs 15.9 +/- 1.1 min, P = 0.01, healthy vs CFS) and had higher peak HR (183 +/- 3 vs 174 +/- 2 bpm, P = 0.03, healthy vs CFS). Civilians with CFS reported higher RPE at stages 3 through 5 compared with controls (F(3,111)= 3.6,P = 0.017). Preexercise fatigue ratings were not a significant predictor of perceived exertion during exercise. There were no group differences (F(1,37)= 1.9, P = 0.17) when RPE were expressed relative to peak VO(2). CONCLUSIONS: Our results show that RPE are greater in civilians with CFS when the data are expressed in terms of absolute exercise intensity. However, by examining RPE relative to a common maximum (i.e., peak VO(2) no differences were observed. The findings of the present investigation challenge the notion that RPE are dysregulated in CFS. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Medicine & Science in Sports & Exercise is the property of Lippincott Williams & Wilkins and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1249/01.mss.0000058360.61448.6c
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        Text: English
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              Text: Apr2003
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              Y: 2003
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