Age differences

She huffs and puffs
Deadly speed!
Sweat trickles down her forehead.
"I'm alright", she pants.
Determined she pushes herself to the limit.
"Do you want to go faster?", the gym trainer asks.
"No more, "she says.

A girl stands in the corner.
Watching all that took place.
Perhaps she could walk faster,
Than what the lady 'ran.'
Yet here was the woman panting away.
Humbled, she realises,
The magnitude of old age.