The Sicilian Crunch put me on the map many moons ago—consider this its reverse. It’s a negative-accentuated glute-ham raise that emphasizes the knee flexion component of the movement.
If your gym has this machine, give it a try:
- Perform 4 sets of 2–4 reps
- Use an 8-second controlled lowering phase
Expect your hamstrings to be sore for a few days.