The Claim
The rate of decline in athletic performance after age 35, which is approximately 0.5% per year, closely parallels the rate of decline in VO2 max, indicating that reductions in aerobic capacity may be a central physiological mechanism contributing to age-related declines in endurance performance.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
After age 35, people get slightly worse at endurance sports each year—and that slowdown matches how much their lung and heart fitness drops. This suggests that losing aerobic fitness might be a big reason why endurance fades with age.
See the scientific wording
The 0.5% per year decline in athletic performance after age 35 is similar to the decline rate of VO2 max, suggesting that aerobic capacity may be a central physiological factor underlying age-related functional loss in endurance performance.
What the research says
1 studyStudy: How fast do we age? Exercise performance over time as a biomarker.
The study found that athletes get slower at about the same rate as their oxygen use declines, suggesting that how well the body uses oxygen may be a big reason why endurance drops with age.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.