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Journal ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences·Sep 2026

For Older Adults, Effort Matters More Than How Long Each Workout Lasts

Key Insight

This study suggests effort relative to your own fitness may matter more than workout length.


Fitness advice often obsesses over 10-minute blocks of activity. In adults aged 75 to 85 followed for four years, what mattered was how hard they worked relative to their own capacity, not how long each bout lasted. Those doing more activity that felt hard for them kept more of their walking ability. Measuring effort by standard intensity cut-offs showed no link at all.

Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.