Open AccessCriterion-referenced mCAFT cut-points to identify metabolically healthy cardiorespiratory fitness among adults aged 18–69 years: an analysis of the Canadian Health Measures Survey
Author(s) -
Emily Wolfe Phillips,
Deepa P. Rao,
Leonard A. Kaminsky,
Grant R. Tomkinson,
Robert Ross,
Justin J. Lang
Publication year - 2020
Publication title -
applied physiology, nutrition and metabolism/applied physiology, nutrition, and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.789
H-Index - 89
eISSN - 1715-5320
pISSN - 1715-5312
DOI - 10.1139/apnm-2019-0874
Subject(s) - cardiorespiratory fitness , confidence interval , waist , medicine , cut off , receiver operating characteristic , physical fitness , demography , public health , body mass index , statistics , gerontology , physical therapy , mathematics , power (physics) , physics , nursing , quantum mechanics , sociology
This study aimed to develop and validate health-related criterion-referenced cut-points for the modified Canadian Aerobic Fitness Test (mCAFT), a field-based measure to predict cardiorespiratory fitness among adults (18–69 years). Criterion-referenced mCAFT cut-points were developed using nationally representative data from cycles 1 (2007–2009) and 2 (2009–2011) of the Canadian Health Measures Survey (CHMS). Receiver operating characteristic curves were used to identify age- and sex-specific cut-points for measured waist circumference, blood pressure, and high-density lipoprotein. Cut-points were validated against metabolic syndrome using a fasted subsample (n = 1093) from cycle 5 (2016–2017). For the main analyses, 4967 participants (50% women) were retained. The mCAFT cut-points ranged from 28 to 43 mL·kg –1 ·min –1 (area under the curve (AUC): 0.60–0.87) among men, and 23 to 37 mL·kg –1 ·min –1 (AUC: 0.61–0.86) among women. The likelihood of meeting the new mCAFT cut-points decreased with an increase in the presence of metabolic risk factors. In total, 54% (95% confidence interval: 42% to 67%) of Canadian adults met the new mCAFT cut-points in 2016–2017. This study developed and validated the first health-related criterion-referenced mCAFT cut-points for metabolic health among Canadian adults aged 18–69 years. These mCAFT cut-points may be useful in health surveillance, clinical, and public health settings. Novelty We developed and validated new criterion-referenced cut-points for the mCAFT to help identify adults at potential risk of poor metabolic health. These new cut-points could help support national health surveillance efforts.