Movement and coordination highly affected in the trunk, forearms and legs, with the shoulders moderately affected.

Movement affected to a high degree in the body and legs, mildly affected in the arms with hand grip and control highly affected.

Movement or coordination highly affected throughout the trunk and legs with grip mildly affected in the hands.

Absence of one forearm, one leg through the knee and one leg above the knee. Movement in one hand is also mildly affected.

Absence of legs and one forearm.


S4 is for swimmers with movement affected to a high degree in the trunk and legs, who are also affected in the hands, or the absence of limbs.

These swimmers generate the majority of their power from the shoulders.