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[HEALTH] · Sweden · 6 sources

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Karolinska Institutet study finds physical decline begins around age 35

A 47-year study conducted by researchers at the Karolinska Institutet in Stockholm has revealed that physical strength, conditioning, and muscle endurance begin to decline around age 35. The study, part of the Swedish Physical Activity and Fitness (SPAF) research, tracked hundreds of randomly selected men and women born in 1958 from 1974 through their 63rd year.

Findings published in the Journal of Cachexia, Sarcopenia and Muscle indicate that muscle endurance and aerobic capacity peak between the ages of 26 and 36. Following this peak, these metrics decline by 0.3 to 0.6 percent annually, eventually accelerating to a loss of up to 2.5 percent per year. The rate of muscle strength loss was found to be similar for both men and women.

Lead author Maria Westerståhl noted that while regular physical activity can slow the decline of physical performance, it cannot stop it entirely. However, the research also highlights that individuals can still improve their strength and fitness through training after the age of 35.

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Journal of Cachexia, Sarcopenia and Muscle · Karolinska Institutet · Maria Westerståhl · Stockholm

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