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.

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.

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, we lose certain powerful muscle fibers faster than others, which can lead to weakness, falls, and trouble moving around — and this muscle decline can actually show how fast someone is aging on the inside.

As people get older, their leg muscle power slowly gets weaker — and it starts to drop faster after age 60. A long-term study found that this loss speeds up with age and could be a sign of overall physical decline as we get older.