Exercise and DNA damage in older adults: evidence remains unsettled
A systematic review found no agreement on whether regular physical activity induces DNA damage in older adults, despite many studies receiving moderate or strong quality ratings.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review did not find a consistent answer about whether regular exercise induces genotoxicity, meaning damage to genetic material, in older adults. That lack of agreement applied across the exercise characteristics examined. It should not be interpreted as evidence that exercise either damages or protects DNA, or as a finding about disease or lifespan.
The abstract does not report individual biomarker results, effect sizes, comparator groups or follow-up periods. Quality ratings alone do not explain the disagreement or establish a common direction of effect.
The outcome under review
The researchers reviewed exercise studies focused on genotoxicity-related biomarkers and assessed study quality using predetermined criteria. The question concerned measurements related to DNA damage, rather than whether participants developed a disease or lived longer.
Quality and consistency differ
Most included studies received a moderate or strong quality rating, yet the review still found no consensus. This distinction matters: a favorable appraisal of study quality does not itself make the reported findings consistent.
The original publication
The impact of physical exercise on genotoxicity in older adults: a systematic review.
Pinto TG, de Souza DV, De Angelis K et al.
Biogerontology · 2025
- PubMed ID
- 41021089
- Record checked
AI-assisted research and writing. This explains one selected publication; it is not a complete review of everything known. Our approach.
One more question, understood.
Keep track of the research you’ve explored.