title: Measuring physical performance via self-report in healthy young adults.
abstract: Discrepancies exist in literature as to what extent self-reporting can replace performance-based testing. To answer this question, self-reports and performance tests should measure identical constructs. Previous studies did not measure identical constructs. The objective of our study was to investigate to what extent self-reporting can replace performance-based testing. Seventy-two healthy subjects were tested. The constructs of the self-reports and the performance tests covered the same components to enable a comparison of self-reports and performance test results. Three different self-reports and a performance test were used to measure physical performance. Additionally, rating of perceived exertion was measured after the subjects lifted a reference weight to predict maximal lifting performance. The controls were age, gender, educational level, subject's participation in fitness, availability of reference data, motivation, attitude, general self-efficacy, and mood. Results showed that all lifting tasks could be predicted, though not solely via self-reporting. A prediction of the performance test results with a margin of +/-5 kg of error could be made for at least 79% of the subjects, via gender, self-reporting, and subject's participation in fitness. Self-reporting may not replace performance testing, although performance testing can be predicted with a margin of error of +/- 5 kg for at least 79% of the healthy subjects.
authors.affiliation: Institute of Human Movement Sciences, University of Groningen, Haren, The Netherlands. w.kuijer@rev.azg.nl
authors.forename: W
authors.initials: W
authors.lastname: Kuijer
authors.forename: E H J
authors.initials: EH
authors.lastname: Gerrits
authors.forename: M F
authors.initials: MF
authors.lastname: Reneman
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D017770:Lifting; D008297:Male; D009426:Netherlands; D005082:Physical Exertion / Q000502:physiology*; D010809:Physical Fitness / Q000502:physiology*; D012044:Regression Analysis; D015203:Reproducibility of Results; D020377:Self Efficacy; D012647:Self-Assessment; D013647:Task Performance and Analysis