But these changes can also be related to childhood injuries or those suffered in high school and college athletics.
Ruprecht sometimes walks with a limp, because of a childhood injury.
He has worked to improve his shot despite an awkward shooting motion caused by a childhood injury.
However, the consequences of childhood injury may simply be more difficult to detect in the short term.
A childhood injury left him without the use of his right leg.
Later she attended ballet school despite a childhood spinal injury and was hooked on dance.
No childhood injury frightens parents more than a blow to the head.
And remembering the agony of a childhood injury, he felt a grin forming.
She was in the process of developing a campaign to reduce childhood injuries and had decided to get children off mean streets by organizing athletics.
"It's a childhood injury that was kind of grim," she said.