In older adults, how fast muscles can generate power matters more for staying steady on your feet and avoiding falls than how strong or big the muscles are — and it drops faster as you age.

As we get older, our muscles' ability to generate power might slow down before we notice loss in strength or size — it could be the first sign our muscles are aging.

Older adults around age 72 who don’t fall tend to have stronger leg power—especially when standing up quickly from a chair—compared to those who do fall, suggesting that how fast you can move your legs might matter more than raw strength when predicting fall risk.

As people get older, their muscles lose power — but how that happens changes over time. Younger adults mostly lose strength, while older adults lose both strength and speed, meaning different things go wrong in the body as we age.

As people get older, their muscles don't send signals as quickly when they try to move, which might be why they lose strength over time.

Just because older people get stronger muscles doesn’t mean their legs get stronger — muscle size and leg strength don’t go hand in hand as we age.