Although played indoors iTac2 works for Goalball, with grabbing of the ball, when you are hot and sweating and need it to stick in your hands. When you intercept a pass or you are trying to reach with your fingertips to stop a goal.
Gridiron / American Football
The only way to win gridiron is to be able to hang on to that ball and gain ground. When that pass happens your focus is on receiving that pass and the grip you have is vital, so being able to improve your grip will gain you more yards on the field.
In general, the extra strength is used on the hands and the regular strength on the body. iTac2 enhances grip for balance and suppleness when completing exercises.