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Validity of Recreational Marathon Runners' Self-Reported Anthropometric Data


Nikolaidis, Pantelis T; Knechtle, Beat (2020). Validity of Recreational Marathon Runners' Self-Reported Anthropometric Data. Perceptual and Motor Skills:Epub ahead of print.

Abstract

While studies on large samples of recreational runners have often relied on participants' self-reported height and body mass, the validity of these data have not been investigated for this population. Hence, this study sought to examine the validity of self-reported anthropometric measures among recreational marathon runners. Female (n = 32) and male (n = 135) recreational marathon runners were requested to estimate their body mass and height (and we calculated their self-reported body mass index [BMI]), after which we took actual measures of their body mass and height and calculated their actual BMI. Participants' self-reported values underestimated their actual body mass by 0.65 kg (p < .001, η2 = 0.222) and their actual BMI by 0.35 kg ⋅ m-2 (p < .001, η2 = 0.245). There was a significant Assessment Method × Sex Interaction for both body mass (p = .019, η2 = 0.033) and BMI (p = .017, η2 = 0.034), as women underestimated body mass values more than men. Participants overestimated their height by 0.44 cm (p < .001, η2 = 0.075), but the interaction of sex and assessment method for height was not statistically significant. Underestimates of body mass correlated with marathon racing speed (r = .24, p = .006) and body fat percentage (r = -.29, p = .001) in men, but not in women (p > .05). The disagreement between self-reported and measured anthropometric data in the present sample was lower than has been previously reported for the general population, suggesting that marathon runners may more accurately self-perceive and/or report their anthropometric characteristics. These findings are of practical value for health professionals and researchers (e.g., nutritionists and exercise physiologists) questionnaires to recreational marathon runners.

Abstract

While studies on large samples of recreational runners have often relied on participants' self-reported height and body mass, the validity of these data have not been investigated for this population. Hence, this study sought to examine the validity of self-reported anthropometric measures among recreational marathon runners. Female (n = 32) and male (n = 135) recreational marathon runners were requested to estimate their body mass and height (and we calculated their self-reported body mass index [BMI]), after which we took actual measures of their body mass and height and calculated their actual BMI. Participants' self-reported values underestimated their actual body mass by 0.65 kg (p < .001, η2 = 0.222) and their actual BMI by 0.35 kg ⋅ m-2 (p < .001, η2 = 0.245). There was a significant Assessment Method × Sex Interaction for both body mass (p = .019, η2 = 0.033) and BMI (p = .017, η2 = 0.034), as women underestimated body mass values more than men. Participants overestimated their height by 0.44 cm (p < .001, η2 = 0.075), but the interaction of sex and assessment method for height was not statistically significant. Underestimates of body mass correlated with marathon racing speed (r = .24, p = .006) and body fat percentage (r = -.29, p = .001) in men, but not in women (p > .05). The disagreement between self-reported and measured anthropometric data in the present sample was lower than has been previously reported for the general population, suggesting that marathon runners may more accurately self-perceive and/or report their anthropometric characteristics. These findings are of practical value for health professionals and researchers (e.g., nutritionists and exercise physiologists) questionnaires to recreational marathon runners.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Institute of General Practice
Dewey Decimal Classification:610 Medicine & health
Language:English
Date:15 June 2020
Deposited On:22 Jun 2020 09:57
Last Modified:29 Jul 2020 15:18
Publisher:Ammons Scientific
ISSN:0031-5125
Additional Information:The official published version of this article can be found at https://doi.org/10.1177/0031512520930159. This is a authors’ draft of the paper: Nikolaidis, Pantelis T; Knechtle, Beat (2020). Validity of Recreational Marathon Runners' Self-Reported Anthropometric Data. Perceptual and Motor Skills:Epub ahead of print. © 2020
OA Status:Closed
Publisher DOI:https://doi.org/10.1177/0031512520930159
PubMed ID:32539530

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Embargo till: 2021-04-01