Fitness Age Calculator — VO₂ Max & Cardio Fitness | Lifespan Check
Lifespan Check
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  • VO₂ max model: Jackson AS, et al. "Prediction of functional aerobic capacity without exercise testing." Med Sci Sports Exerc 1990;22:863–870.
  • Fitness & mortality: Mandsager et al., JAMA Network Open 2018 — higher cardiorespiratory fitness strongly predicts longer life.

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