Performance
A · High confidenceMeasured heart and lung fitness and the risk of death
Subject: Objectively Assessed Cardiorespiratory Fitness and All-Cause Mortality Risk: An Updated Meta-analysis of 37 Cohort Studies Involving 2,258,029 Participants
What this means
People with the highest fitness had about half the risk of dying compared with those with the lowest. Every 1-MET step up (a measure of exercise capacity) was linked to a lower risk.
Laukkanen JA, Isiozor NM, Kunutsor SK · 2022 · Mayo Clinic Proceedings
What does this rating mean?
Multiple consistent meta-analyses or a position stand. Sufficient basis for a fixed choice in the coaching.
Findings
Objectively assessed cardiorespiratory fitness is strongly associated with lower all-cause mortality: the top fitness tertile had 45% lower risk than the bottom tertile, and each 1-MET increase was linked to 11% lower risk. The association was consistent across publication year, age, sex and assessment method.
Who this applies to
Participants in long-term population studies; the link was equally strong in men and women and across ages.
Size of the research
37 studies with over two million participants in total, followed for at least 1 year.
What to keep in mind
These are observational studies. They show a link between fitness and death, but do not prove that better fitness itself is the cause.
Practical conclusion for REZA
Underlines why REZA takes cardiorespiratory fitness as seriously as strength: every step fitter is linked to a measurably lower mortality risk.
View method and source
Methodology
Meta-analysis
Population
37 cohort studies, 2,258,029 participants, 108,613 all-cause mortality events
Intervention
Exposure: objectively assessed cardiorespiratory fitness (exercise testing), top vs bottom tertile and per 1-MET increment
Outcome measures
All-cause mortality
Limitations
Observational design; CRF measured once at baseline; residual confounding by health status and reverse causation possible.
Original source
DOI: 10.1016/j.mayocp.2022.02.029 · PMID: 35562197
View on PubMed →Concurrent Strength and Endurance Training: A Systematic Review and Meta-Analysis on the Impact of Sex and Training Status
Next study →Physical Activity, All-Cause and Cardiovascular Mortality, and Cardiovascular Disease: A Systematic Review and Meta-Analysis of Multiple Health Outcomes
This information is general education about scientific research. It is not personal medical advice and does not replace diagnosis or treatment by a doctor or other healthcare professional. If you have symptoms, a medical condition or take medication, consult your GP or treating professional before changing your training or nutrition.