AVOID this core exercise! And focus on these…

How much of your core work is actually hip flexor work with some isometric holding of the upper ab?
This type of “core work” is taxing your iliopsoas (large powerful hip flexor) far more than it is the core. The shear force this puts on the lower back (spine) isn’t worth the minimal abdominal work you get from this type of exercise.
If you have a disc injury (or want to avoid one), these exercises should be avoided.
Focus on core work that doesn’t include a “v up” position which selects the hip flexors as the prime worker.
Core stabilization exercises should focus on a neutral body position, with the challenge of holding that neutral position against resistance.
It’s Your Turn. Emerge.
Matt Pirtle MA CSCS