A grip element for an exercise machine, comprising at least a substantially tubular handgrip (2), forming at least one outer surface (3) to be gripped by the user's hand while performing exercises to develop muscles or the like, and having at least one substantially longitudinal through-channel (4) in which there will engage at least one flexible cable (5) connected to at least one resistant load of at least one exercise machine, the grip element being characterized in that said handgrip (2) comprises means (6) for selective locking of the grip element in any position along the cable (5), the locking means being designed to prevent the handgrip (2) from sliding relative to the cable (5) when the grip element is manually translated and/or rotated in any direction in space.