fullspinzoo
New member
Longtime lurker here. I recently watched this regarding planks. It's an interesting perspective that appears to make some valid points on the limitations of this frequently lauded exercise. First, Jeff Cavaliere notes that it only works the abs in one plane, the sagittal plane, as opposed to different sides, rotation, etc. Additionally, instead of glute and posture strengthening, the hip flexors are actually activated. When the glutes are contracted at the top of a plank, they are not contracted under load, so it's not as effective. Because it works the hip flexors, too much strengthening/tightening could cause low back issues. And finally, in terms of posture, the contractions of the rhomboids and traps at the top of a plank are essentially unloaded, so again, not as effective
Ultimately, he mentions that in order to actually get the claimed benefits of a plank, one should do reverse planks. This way, you can progressively overload the posterior chain. Beginners can start by performing it on a bench, then ultimately transition to a full reverse plank on the floor.
Thoughts?