Perceived exertion in fatiguing illness: Gulf War veterans with chronic fatigue syndrome.
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| Title: | Perceived exertion in fatiguing illness: Gulf War veterans with chronic fatigue syndrome. |
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| 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, p569-574. 6p. |
| Abstract: | PURPOSE: It has been reported that ratings of perceived exertion (RPE) are elevated in chronic fatigue syndrome (CFS). We have challenged this notion by examining perceived exertion in civilian females with CFS and expressing the data relative to exercise capacity (%VO(2max)). The purpose of the present investigation was to further examine RPE during exercise in a unique population of CFS patients, Gulf veterans (GV). METHODS: Thirty-four GV (N = 15 CFS, 42 +/- 8 yr; N = 19 healthy, 43 +/- 5 yr) performed a maximal exercise test on a cycle ergometer. After a 3-min warm-up, exercise intensity increased by 30 W every minute until exhaustion. RPE were obtained during the last 15 s of each minute using Borg's CR-10 scale. RESULTS: With the exception of peak V[E], there were no significant differences in any peak exercise variables. Repeated measures ANOVA revealed significantly higher RPE at each power output examined (F(1,32) = 16.4, P < 0.001). Group differences in RPE remained significant when analyzed relative to peak VO(2) (F(1,32) = 7.2, P = 0.01). Both group main effects and the interaction were eliminated when self-reported fatigue symptoms were controlled for in the analyses. Power functions for RPE as a function of relative oxygen consumption were not different between groups and were significantly greater than a linear value of 1.0 (1.6 +/- 0.3 for both groups, P < 0.02). CONCLUSIONS: Our results show that RPE are greater in GV with CFS regardless of whether the data were expressed in terms of absolute or relative exercise intensity. However, self-reported fatigue associated with CFS eliminated the group differences. These results suggest that GV with CFS were unique compared with their civilian counterparts. Future research aimed at determining the influence of preexisting fatigue on RPE during exercise is warranted. [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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: ehh DbLabel: Education Research Complete An: 106694449 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Perceived exertion in fatiguing illness: Gulf War veterans with chronic fatigue syndrome. – Name: Author Label: Authors Group: Au 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) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Medicine+%26+Science+in+Sports+%26+Exercise%22">Medicine & Science in Sports & Exercise</searchLink>. Apr2003, Vol. 35 Issue 4, p569-574. 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). We have challenged this notion by examining perceived exertion in civilian females with CFS and expressing the data relative to exercise capacity (%VO(2max)). The purpose of the present investigation was to further examine RPE during exercise in a unique population of CFS patients, Gulf veterans (GV). METHODS: Thirty-four GV (N = 15 CFS, 42 +/- 8 yr; N = 19 healthy, 43 +/- 5 yr) performed a maximal exercise test on a cycle ergometer. After a 3-min warm-up, exercise intensity increased by 30 W every minute until exhaustion. RPE were obtained during the last 15 s of each minute using Borg's CR-10 scale. RESULTS: With the exception of peak V[E], there were no significant differences in any peak exercise variables. Repeated measures ANOVA revealed significantly higher RPE at each power output examined (F(1,32) = 16.4, P < 0.001). Group differences in RPE remained significant when analyzed relative to peak VO(2) (F(1,32) = 7.2, P = 0.01). Both group main effects and the interaction were eliminated when self-reported fatigue symptoms were controlled for in the analyses. Power functions for RPE as a function of relative oxygen consumption were not different between groups and were significantly greater than a linear value of 1.0 (1.6 +/- 0.3 for both groups, P < 0.02). CONCLUSIONS: Our results show that RPE are greater in GV with CFS regardless of whether the data were expressed in terms of absolute or relative exercise intensity. However, self-reported fatigue associated with CFS eliminated the group differences. These results suggest that GV with CFS were unique compared with their civilian counterparts. Future research aimed at determining the influence of preexisting fatigue on RPE during exercise is warranted. [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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1249/01.mss.0000058438.25278.33 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 569 Titles: – TitleFull: Perceived exertion in fatiguing illness: Gulf War veterans with chronic fatigue syndrome. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Cook DB – PersonEntity: Name: NameFull: Nagelkirk PR – PersonEntity: Name: NameFull: Peckerman A – PersonEntity: Name: NameFull: Poluri A – PersonEntity: Name: NameFull: LaManca JJ – PersonEntity: Name: NameFull: Natelson BH IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2003 Type: published Y: 2003 Identifiers: – Type: issn-print Value: 01959131 Numbering: – Type: volume Value: 35 – Type: issue Value: 4 Titles: – TitleFull: Medicine & Science in Sports & Exercise Type: main |
| ResultId | 1 |
