This is Bad......Like REAL bad.....Like OMG DO NOT do this, bad. STOP DOING CRUNCHES, SITUPS and TWISTING MOVEMENTS! They're destroying your spinal discs and either leading to back pain or setting you up for pain in the future. The "Core" is meant to work as a corset around the quite unstable lumbar (low back) spine providing a "bracing" effect to transfer force though the hips and or shoulders. The Lumbar Spine is not meant to be a loose, unstable, creator of motion no matter what you're trainer, doctor or yoga instructor says.... If you need a more in-depth explanation just go here, here or here... What you should do: Focus on making the "Core" a … [Read more...]