Today’s CrossFit.com Workout of the Day features GHD sit-ups. The primary benefit of the GHD sit-up is to develop the core musculature strength to prevent movement of the spine in a high-force/high-velocity setting. The static contraction of the abdominals is more potent than the dynamic one seen in crunches. However, the spine does not remain completely static throughout the movement; there is some flexion and extension: The athlete extends slightly past neutral at the bottom to take the trunk

"When coaching the GHD sit-up, we cue for the athlete to sharply extend the legs while coming up. The difference is obvious to everyone watching when rectus femoris kicks in. Those who have identified the GHD sit-up and other feet-anchored sit-ups as a source of low-back pain seem to always pull with the iliopsoas alone and never use rectus femoris. Those who’ve had problems with low back pain from GHD or roman chair sit-ups will find considerable relief by training to use the full complement of

Freak Athlete Hyper Pro GHD Attachment Review ➡️ Check out the Freak Athlete Hyper Pro https://ShreddedDad.com/HyperPro ➡️ Freak Athlete Hyper Pro review (video) https://www.youtube.com/watch?v=OIQEzYDvl64 ➡️ Freak Athlete Hyper Pro review (written) https://ShreddedDad.com/freak-athlete-hyper-pro ➡️ Freak Athlete Pro Upgrade Kit https://ShreddedDad.com/ProUpgradeKit ➡️ Go to https://ShreddedDad.com for garage gym equipment reviews and discounts -- Chapters -- 0:00 Freak Athlete GHD Attachment Re