Muscle Mitochondria Stay Adaptable With Age, and Exercise Can Tap Into That
Aging muscles lose power partly because their mitochondria stop working well. But this study in mice and humans (30 donors aged 17 to 99) found that muscle mitochondria remain flexible enough to improve with exercise, even in old age. In mice, the functional gains from exercise depended on mitochondrial changes at structural and enzymatic levels. Mice lacking proper mitochondrial function in muscle couldn't benefit from exercise the same way.
Key Insight
This study suggests muscle mitochondria can still respond to physical activity even late in life.
Original Paper
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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.