Swedish Study Finds Physical Fitness Begins Declining Around Age 35
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A long-term Swedish study has found that physical capacity, including fitness, strength, and muscle endurance, begins to decline around age 35. The research also found that participants who became physically active during adulthood improved their physical capacity by 5-10 percent. The research group plans to continue following the participants as they age.
Facts First
- Physical capacity begins declining around age 35, regardless of prior training background.
- The decline in fitness, strength, and muscle endurance becomes more pronounced with advancing age.
- Adults who became physically active improved their capacity by 5-10 percent, according to the study.
- The Swedish Physical Activity and Fitness (SPAF) study tracked participants from age 16 to 63 over 47 years.
- Researchers plan to test participants again when they reach age 68.
What Happened
The Swedish Physical Activity and Fitness (SPAF) study tracked several hundred randomly selected men and women from ages 16 to 63 over 47 years. Researchers found that fitness, strength, and muscle endurance begin declining around age 35, a trend that becomes more pronounced with age. The study was published in the Journal of Cachexia, Sarcopenia and Muscle, with Maria Westerståhl, a lecturer at the Department of Laboratory Medicine, as the lead author.
Why this Matters to You
This research provides a clear timeline for when you might expect your body's natural physical capacity to start decreasing, which could inform your long-term health and fitness planning. The finding that becoming active in adulthood can improve your physical capacity by 5-10 percent suggests it is never too late to benefit from exercise, which may help you maintain mobility and independence as you age.
What's Next
The research group plans to continue following the study participants, with the next round of testing scheduled for when they reach 68 years old. This could provide further insights into how physical capacity changes in later decades and how lifestyle interventions might influence the aging process.