Cited by 179Physical Activity and HealthCardiovascular and exercise physiologyObesity, Physical Activity, Diet

The Fat but Fit paradox: what we know and don’t know about it

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Ortega, Francisco B, Ruiz, Jonatan R, Labayen, Idoia, Lavie, Carl J, Blair, Steven N·2018·British Journal of Sports Medicine

Abstract

In the late 1980s, one of us (SNB) published a study that demonstrated that individuals with a low (below first quintile=20th percentile) cardiorespiratory fitness level had a higher risk of mortality 8 years later, when compared with those who were at least moderately fit.1 Since then, many longitudinal studies have consistently confirmed this notion in men and women, as well as in healthy and diseased individuals, for all-cause mortality, as well as for cardiovascular disease (CVD) mortality.2 Obesity is related to multiple physical and mental comorbidities and it is an incontrovertible risk factor for all-cause and CVD mortality.3 It has been suggested, however, that being fit might attenuate some of the adverse consequences of obesity, independently of some key potential confounders. In this context, in the late 1990s, some studies provided first evidence for what was later known as the Fat but Fit paradox (see review by Ortega et al .3). These studies demonstrated that all-cause and CVD mortality risk in obese individuals, as defined by body mass index (BMI), body fat percentage or waist circumference, who are fit (ie, cardiorespiratory fitness level above the age-specific and sex-specific 20th percentile) is not significantly different from their normal-weight and fit counterparts (ie, the theoretically healthiest group possible) (figure 1). Figure 1 Illustration of the Fat but Fit paradox in relation with cardiovascular disease (CVD) mortality and all-cause mortality in …

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Authors
Ortega, F. B., Ruiz, J. R., Labayen, I., Lavie, C. J., & Blair, S. N.
Affiliations
  • Universidad de Granada (ES)
  • University of the Basque Country (ES)
  • The University of Queensland (AU)
  • University of South Carolina (US)
Corresponding author
Ortega, Francisco B
Venue
British Journal of Sports Medicine
Publisher
BMJ
Published
2017-06-05
Volume
52
Issue
3
Pages
151-153
ISSN
  • 0306-3674 (ISSN-L)
  • 1473-0480
OpenAlex
W2622199341
Cited by
179
References
11
Citations by year
2026: 10 · 2025: 15 · 2024: 12 · 2023: 31 · 2022: 26 · 2021: 23 · 2020: 28 · 2019: 11 · 2018: 19 · 2017: 3
Type
journal article
Language
en
Open access
Locations
  • British Journal of Sports Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repository of the University of Granada (University of Granada) (submittedVersion, cc-by-nd)
  • HighWire Press Open Archive (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Physical Activity and Health
  • Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Obesity, Physical Activity, Diet
Keywords
cardiorespiratory fitness, obesity, all-cause mortality, cardiovascular mortality, body mass index, body fat percentage, waist circumference
MeSH terms
Cardiorespiratory Fitness, Cardiovascular Diseases, Health Status, Humans, Mortality, Obesity, Meta-Analysis as Topic, Exercise, Overweight

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