Though the hip flexors are the primary movers in the GHD sit-up, the abs play a strong role in stabilizing the torso to prevent hyperextension of the spine. This is, in our opinion, a more functional role for the abs than trunk flexion. Carefully introduced and practiced, the GHD sit-up is a potent tool for reeducating the athlete to use the hip flexors more efficaciously and safely.
7 Best Glute Ham Raise Alternative Exercises - Steel Supplements
EliteFTS
Gutting the Glute-Ham Raise
The Glute-Ham Raise is a Functional Hamstring Builder
9123 Ghd & Sissy Squat - Hamstring Bench - Sidea Fitness Company International
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