The Claim

In Masters athletes, athletic performance declines at an average rate of approximately 0.5% per year after the age of 35 across running, rowing, and swimming events, and this consistent rate may reflect a fundamental biological aging process that affects multiple physiological systems.

Source: How fast do we age? Exercise performance over time as a biomarker.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
20score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

If you're a top athlete over 35, your performance tends to drop by about half a percent each year — and this slow decline might be due to how our bodies naturally age, no matter the sport.

See the scientific wording

In Masters athletes, athletic performance declines at a rate of approximately 0.5% per year after age 35 across running, rowing, and swimming events, suggesting this rate may reflect a fundamental biological aging process affecting multiple body systems.

What the research says

1 study
  1. Study: How fast do we age? Exercise performance over time as a biomarker.

    The study looked at top older athletes and found their speed in running, swimming, and rowing slows down by about half a percent each year after 35. This matches the claim and suggests aging affects the body in a consistent, measurable way.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.