The Core: What It Actually Is and How to Train It

The Core: What It Actually Is and How to Train It

The core is far more than the rectus abdominis, the six-pack muscle that dominates fitness imagery. Your core includes all the muscles that stabilize your spine and pelvis: the deep transversus abdominis, the internal and external obliques, the multifidus, the pelvic floor, and the diaphragm. These muscles work together in a coordinated system. Training only for visible abs neglects the deeper muscles that actually protect your spine. Crunches and sit-ups primarily train the superficial rectus abdominis. Planks, dead bugs, pallof presses, and farmer carries train the entire core system to stabilize. Functional core training translates to better performance in every activity from lifting groceries to playing sports. Lower back pain is often related to poor core stability rather than weak abdominal muscles. A comprehensive core program includes anti-extension exercises that resist arching your back, anti-rotation exercises that resist twisting, and anti-lateral flexion exercises that resist side-bending.

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