A.T. Robertson Commentary Acts 3:7

"And he took him by the right hand, and raised him up: and immediately his feet and his ankle-bones received strength." — Acts 3:7 (ASV)

Took him by the right hand (πιασας αυτον της δεξιας χειρος). Doric form πιαζω for πιεζω. Genitive of the part affected. Peter had to pull him up on his feet before he would try to walk.