Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'

Lene Lerche; Anja Olsen; Kristina Elin Nielsen Petersen; Agnetha Linn Rostgaard-Hansen; Lars Ove Dragsted; Nikolai Baastrup Nordsborg; Anne Tjønneland; Jytte Halkjær

doi:10.1111/sms.12873

Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'

Lene Lerche, Anja Olsen, Kristina Elin Nielsen Petersen, Agnetha Linn Rostgaard-Hansen, Lars Ove Dragsted, Nikolai Baastrup Nordsborg, Anne Tjønneland, Jytte Halkjær

4 Citationer (Scopus)

Abstract

Valid assessments of physical activity (PA) and cardiorespiratory fitness (CRF) are essential in epidemiological studies to define dose-response relationship for formulating thorough recommendations of an appropriate pattern of PA to maintain good health. The aim of this study was to validate the Danish step test, the physical activity questionnaire Active-Q, and self-rated fitness against directly measured maximal oxygen uptake (VO₂max). A population-based subsample (n=125) was included from the “Diet, Cancer and Health-Next Generations” (DCH-NG) cohort which is under establishment. Validity coefficients, which express the correlation between measured and “true” exposure, were calculated, and misclassification across categories was evaluated. The validity of the Danish step test was moderate (women: r=.66, and men: r=.56); however, men were systematically underestimated (43% misclassification). When validating the questionnaire-derived measures of PA, leisure-time physical activity was not correlated with VO₂max. Positive correlations were found for sports overall, but these were only significant for men: total hours per week of sports (r=.26), MET-hours per week of sports (r=.28) and vigorous sports (0.28) alone were positively correlated with VO₂max. Finally, the percentage of misclassification was low for self-rated fitness (women: 9% and men: 13%). Thus, self-rated fitness was found to be a superior method to the Danish step test, as well as being less cost prohibitive and more practical than the VO₂max method. Finally, even if correlations were low, they support the potential for questionnaire outcomes, particularly sports, vigorous sports, and self-rated fitness to be used to estimate CRF.

Originalsprog	Engelsk
Tidsskrift	Scandinavian Journal of Medicine & Science in Sports
Vol/bind	27
Udgave nummer	12
Sider (fra-til)	1864-1872
Antal sider	9
ISSN	0905-7188
DOI	https://doi.org/10.1111/sms.12873
Status	Udgivet - dec. 2017

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10.1111/sms.12873

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Lerche, L., Olsen, A., Petersen, K. E. N., Rostgaard-Hansen, A. L., Dragsted, L. O., Nordsborg, N. B., Tjønneland, A., & Halkjær, J. (2017). Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'. Scandinavian Journal of Medicine & Science in Sports, 27(12), 1864-1872. https://doi.org/10.1111/sms.12873

Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'. / Lerche, Lene; Olsen, Anja; Petersen, Kristina Elin Nielsen et al.

I: Scandinavian Journal of Medicine & Science in Sports, Bind 27, Nr. 12, 12.2017, s. 1864-1872.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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title = "Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'",

abstract = "Valid assessments of physical activity (PA) and cardiorespiratory fitness (CRF) are essential in epidemiological studies to define dose-response relationship for formulating thorough recommendations of an appropriate pattern of PA to maintain good health. The aim of this study was to validate the Danish step test, the physical activity questionnaire Active-Q, and self-rated fitness against directly measured maximal oxygen uptake (VO2max). A population-based subsample (n=125) was included from the “Diet, Cancer and Health-Next Generations” (DCH-NG) cohort which is under establishment. Validity coefficients, which express the correlation between measured and “true” exposure, were calculated, and misclassification across categories was evaluated. The validity of the Danish step test was moderate (women: r=.66, and men: r=.56); however, men were systematically underestimated (43% misclassification). When validating the questionnaire-derived measures of PA, leisure-time physical activity was not correlated with VO2max. Positive correlations were found for sports overall, but these were only significant for men: total hours per week of sports (r=.26), MET-hours per week of sports (r=.28) and vigorous sports (0.28) alone were positively correlated with VO2max. Finally, the percentage of misclassification was low for self-rated fitness (women: 9% and men: 13%). Thus, self-rated fitness was found to be a superior method to the Danish step test, as well as being less cost prohibitive and more practical than the VO2max method. Finally, even if correlations were low, they support the potential for questionnaire outcomes, particularly sports, vigorous sports, and self-rated fitness to be used to estimate CRF.",

keywords = "Validation, Fitness test, Self-reported physical activity, Maximal oxygen uptake, cardiorespiratory fitness, Epidemiology",

author = "Lene Lerche and Anja Olsen and Petersen, {Kristina Elin Nielsen} and Rostgaard-Hansen, {Agnetha Linn} and Dragsted, {Lars Ove} and Nordsborg, {Nikolai Baastrup} and Anne Tj{\o}nneland and Jytte Halkj{\ae}r",

note = "CURIS 2017 NEXS 108",

year = "2017",

month = dec,

doi = "10.1111/sms.12873",

language = "English",

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pages = "1864--1872",

journal = "Scandinavian Journal of Medicine & Science in Sports",

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T1 - Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'

AU - Lerche, Lene

AU - Olsen, Anja

AU - Petersen, Kristina Elin Nielsen

AU - Rostgaard-Hansen, Agnetha Linn

AU - Dragsted, Lars Ove

AU - Nordsborg, Nikolai Baastrup

AU - Tjønneland, Anne

AU - Halkjær, Jytte

N1 - CURIS 2017 NEXS 108

PY - 2017/12

Y1 - 2017/12

N2 - Valid assessments of physical activity (PA) and cardiorespiratory fitness (CRF) are essential in epidemiological studies to define dose-response relationship for formulating thorough recommendations of an appropriate pattern of PA to maintain good health. The aim of this study was to validate the Danish step test, the physical activity questionnaire Active-Q, and self-rated fitness against directly measured maximal oxygen uptake (VO2max). A population-based subsample (n=125) was included from the “Diet, Cancer and Health-Next Generations” (DCH-NG) cohort which is under establishment. Validity coefficients, which express the correlation between measured and “true” exposure, were calculated, and misclassification across categories was evaluated. The validity of the Danish step test was moderate (women: r=.66, and men: r=.56); however, men were systematically underestimated (43% misclassification). When validating the questionnaire-derived measures of PA, leisure-time physical activity was not correlated with VO2max. Positive correlations were found for sports overall, but these were only significant for men: total hours per week of sports (r=.26), MET-hours per week of sports (r=.28) and vigorous sports (0.28) alone were positively correlated with VO2max. Finally, the percentage of misclassification was low for self-rated fitness (women: 9% and men: 13%). Thus, self-rated fitness was found to be a superior method to the Danish step test, as well as being less cost prohibitive and more practical than the VO2max method. Finally, even if correlations were low, they support the potential for questionnaire outcomes, particularly sports, vigorous sports, and self-rated fitness to be used to estimate CRF.

AB - Valid assessments of physical activity (PA) and cardiorespiratory fitness (CRF) are essential in epidemiological studies to define dose-response relationship for formulating thorough recommendations of an appropriate pattern of PA to maintain good health. The aim of this study was to validate the Danish step test, the physical activity questionnaire Active-Q, and self-rated fitness against directly measured maximal oxygen uptake (VO2max). A population-based subsample (n=125) was included from the “Diet, Cancer and Health-Next Generations” (DCH-NG) cohort which is under establishment. Validity coefficients, which express the correlation between measured and “true” exposure, were calculated, and misclassification across categories was evaluated. The validity of the Danish step test was moderate (women: r=.66, and men: r=.56); however, men were systematically underestimated (43% misclassification). When validating the questionnaire-derived measures of PA, leisure-time physical activity was not correlated with VO2max. Positive correlations were found for sports overall, but these were only significant for men: total hours per week of sports (r=.26), MET-hours per week of sports (r=.28) and vigorous sports (0.28) alone were positively correlated with VO2max. Finally, the percentage of misclassification was low for self-rated fitness (women: 9% and men: 13%). Thus, self-rated fitness was found to be a superior method to the Danish step test, as well as being less cost prohibitive and more practical than the VO2max method. Finally, even if correlations were low, they support the potential for questionnaire outcomes, particularly sports, vigorous sports, and self-rated fitness to be used to estimate CRF.

KW - Validation

KW - Fitness test

KW - Self-reported physical activity

KW - Maximal oxygen uptake

KW - cardiorespiratory fitness

KW - Epidemiology

U2 - 10.1111/sms.12873

DO - 10.1111/sms.12873

M3 - Journal article

C2 - 28267247

SN - 0905-7188

VL - 27

SP - 1864

EP - 1872

JO - Scandinavian Journal of Medicine & Science in Sports

JF - Scandinavian Journal of Medicine & Science in Sports

IS - 12

ER -

Validity of physical activity and cardiorespiratory fitness in the Danish cohort 'Diet, Cancer and Health - Next Generations'

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