The GHD sit-up is both famous, and infamous for its' ability to wreak havoc on a persons body, not just during a workout, but many days after. I highly recommend modifying workouts with GHD sit-ups until you have have had some consistent exposure to them. The eccentric loading that occurs, plus the shear forces on both the back and knee that can occur if done incorrectly make this a high risk/high reward movement.

The GHD sit-up is both famous, and infamous for its' ability to wreak havoc on a persons body, not just during a workout, but many days after. I highly recommend modifying workouts with GHD sit-ups until you have have had some consistent exposure to them. The eccentric loading that occurs, plus the shear forces on both the back and knee that can occur if done incorrectly make this a high risk/high reward movement.