Balance
How long you can stand on one leg, eyes open, then closed.
Single-leg stance
5 min
Body & strength
Sample reading
Ages 40–49
42
seconds
Low < 10
Fair 10–30
Good > 30
Illustrative ranges. Your physician sets yours.
(01) How it’s done
On the day
How long you can stand on one leg, eyes open and then closed, timed on each leg on a force plate.
The force plate also records how much you sway, which says more than the time alone.
(02) Why it matters
What it tells us
Balance falls off quietly from your fifties. It is the best early warning for falls, which are a leading cause of injury after sixty-five.
It also trains quickly. A few minutes a day is enough to move the number within weeks.
(03) Same system
Body & strength
Measured on the same day, read by the same physician.
