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On Perceived Exertion and its Measurement
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The general aim of the thesis is to answer questions on general and differential aspects of perceived exertion and on the measurement of its intensity variation. Overall perceived exertion is commonly treated as a unidemensional construct. This thesis also explores its multidimensional character. Four empirical studies are summarized (Study I-IV). Psychophysical power functions of perceived exertion obtained with the new improved Borg CR100 (centiMax) scale were found to be consistent with results obtained with absolute magnitude estimation, and with the classical Borg CR10 and RPE scales. Women gave significantly higher perceived exertion scale values than men for the same levels of workload on a bicycle ergometer. This agrees with the fact that they were physically less strong than men. With regard to the measurement of “absolute” levels of intensity, RPE- and CR-scale values were validated by physiological measurements of heart rate and blood lactate. Predicted values of maximal individual performance obtained from psychophysical functions agreed well with actual maximal performance on the bicycle ergometer. This confirms the validity of the RPE and CR scales for measuring perceptual intensity and their value for interindividual comparisons. To study the multidimensional character of perceived exertion, 18 symptoms were measured with a CR scale: in a questionnaire, and in bicycle ergometer work tests. Five factors were extracted for the questionnaire: (1) Muscles and joints; (2) Perceived exertion; (3) Annoyance/lack of motivation; (4) Head/stomach symptoms; and (5) Cardiopulmonary symptoms. Four factors were extracted for the bicycle max test: (1) Physical distress; (2) Central perceived exertion; (3) Annoyance/lack of motivation; (4) Local perceived exertion. The questionnaire is suggested for clinical use to let patients express a variety of symptoms. The thesis also resulted in improvements of the Borg CR100 scale. An extended use of the scale is recommended.

Place, publisher, year, edition, pages
Stockholm: Psykologiska institutionen , 2007. , 58 p.
Keyword [en]
Perceptual scaling, psychophysics, Category-Ratio scale, perceived exertion, interindividual comparisons
National Category
Psychology
Research subject
Psychology
Identifiers
URN: urn:nbn:se:su:diva-6862ISBN: 978-91-7155-456-7 (print)OAI: oai:DiVA.org:su-6862DiVA: diva2:197216
Public defence
2007-06-04, David Magnussonsalen (U31), hus 8, Frescati Hagväg 8, Stockholm, 10:00
Opponent
Supervisors
Available from: 2007-05-14 Created: 2007-05-14 Last updated: 2010-10-21Bibliographically approved
List of papers
1. A comparison of AME and CR100 for scaling perceived exertion
Open this publication in new window or tab >>A comparison of AME and CR100 for scaling perceived exertion
2002 In: Acta Psychologica, ISSN 0001-6918, Vol. 109, no 2, 157-175 p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-24312 (URN)
Note
Part of urn:nbn:se:su:diva-6862Available from: 2007-05-14 Created: 2007-05-14Bibliographically approved
2. A comparison between three rating scales for perceived exertion and two different work tests
Open this publication in new window or tab >>A comparison between three rating scales for perceived exertion and two different work tests
2006 In: Scandinavian Journal of Medicine in Science and Sports, ISSN 0905-7188, Vol. 16, no 1, 57-69 p.Article in journal (Refereed) Published
Identifiers
urn:nbn:se:su:diva-24313 (URN)
Note
Part of urn:nbn:se:su:diva-6862Available from: 2007-05-14 Created: 2007-05-14Bibliographically approved
3. Individual differences in perceived exertion assessed with the Borg RPE, CR10 and CR100 scales
Open this publication in new window or tab >>Individual differences in perceived exertion assessed with the Borg RPE, CR10 and CR100 scales
Manuscript (Other academic)
Identifiers
urn:nbn:se:su:diva-24314 (URN)
Note
Part of urn:nbn:se:su:diva-6862Available from: 2007-05-14 Created: 2007-05-14 Last updated: 2010-01-13Bibliographically approved
4. Interindividual assessment of multidimensional symptoms of perceived exertion
Open this publication in new window or tab >>Interindividual assessment of multidimensional symptoms of perceived exertion
Manuscript (Other academic)
Identifiers
urn:nbn:se:su:diva-24315 (URN)
Note
Part of urn:nbn:se:su:diva-6862Available from: 2007-05-14 Created: 2007-05-14 Last updated: 2010-01-13Bibliographically approved

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