2022
DOI: 10.1249/mss.0000000000003068
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Descriptive Epidemiology of Cardiorespiratory Fitness in UK Adults: The Fenland Study

Abstract: Introduction: Cardiorespiratory fitness (CRF) is rarely measured in population studies. Most studies of CRF do not examine differences by population subgroups or seasonal trends. We examined how estimated CRF levels vary by anthropometric, sociodemographic, and behavioral characteristics in a population-based cohort of UK adults (the Fenland Study). Methods: We used a validated submaximal exercise test to obtain CRF estimates (CRF estimated ) in 5976 women and 5316 men, residing in the East of England. CRF est… Show more

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Cited by 5 publications
(8 citation statements)
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“…VO 2 max estimates were expressed in both ml O 2 ⋅min -1 ⋅kg -1 total-body mass and as ml O 2 ⋅min -1 ⋅kg -1 fat-free mass. This VO 2 max estimation procedure has been validated against directly measured VO 2 max in a subsample of Fenland Study participants (43 women; 42 men), demonstrating low bias and high correlation with directly measured VO 2 max (r = 0.70) [ 18 , 19 ]. For longitudinal analyses, fitness was assessed using the same methodology that was used at baseline.…”
Section: Methodsmentioning
confidence: 99%
“…VO 2 max estimates were expressed in both ml O 2 ⋅min -1 ⋅kg -1 total-body mass and as ml O 2 ⋅min -1 ⋅kg -1 fat-free mass. This VO 2 max estimation procedure has been validated against directly measured VO 2 max in a subsample of Fenland Study participants (43 women; 42 men), demonstrating low bias and high correlation with directly measured VO 2 max (r = 0.70) [ 18 , 19 ]. For longitudinal analyses, fitness was assessed using the same methodology that was used at baseline.…”
Section: Methodsmentioning
confidence: 99%
“…We used the described exercise test calibration framework to develop a self-paced walk test calibration model. For each individual in a participant sample, we first derived the intercept and slope coefficients defining the HR-energy expenditure relationship ( β 0 i and β 1 i ) using a standardised treadmill test, 13 with intensity at each time point previously established using indirect calorimetry, 9 as the reference exercise test. We then constructed parameter set P x i consisting of features derived from both the walk test and participant-level characteristics known to influence exercise capacity.…”
Section: Methodsmentioning
confidence: 99%
“…The treadmill test was performed using standardised procedures as described in detail elsewhere. 13 Briefly, the test consisted of several stages of progressively faster walking and increasing incline levels for 15 minutes, followed by 5 minutes of running. For the walk test, two markers were placed 20 meters apart in a flat, indoor corridor.…”
Section: Clinical Exercise Testingmentioning
confidence: 99%
“…We used the described exercise test calibration framework to develop a self-paced walk test calibration model. For each individual in a participant sample, we first derived the intercept and slope coefficients defining the HR-energy expenditure relationship (β 0 i and β 1 i ) using a standardized treadmill test (Gonzales et al, 2023), with intensity at each time point previously established using indirect calorimetry (Brage et al, 2007), as the reference exercise test. We then constructed parameter set P x i consisting of features derived from both the walk test and participant-level characteristics known to influence exercise capacity.…”
Section: Application Of Calibration Model For Self-paced Walk Testmentioning
confidence: 99%
“…The treadmill test was performed using standardized procedures as described in detail elsewhere (Gonzales et al, 2023). Briefly, the test consisted of several stages of progressively faster walking and increasing incline levels for 15 min, followed by 5 min of running.…”
Section: Clinical Exercise Testingmentioning
confidence: 99%