Stop wasting time on crunches and start training your core to resist movement for maximum power and injury prevention.
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Forget The Reps - 6 Static Core Exercises That Are Best For Firing Up Your Deep Abdominals
98, 99, 100…you mutter through pursed lips, before collapsing flat on your back on the gym floor. Your core crunched to oblivion, your hip flexors probably firing on all cylinders and your neck a ...
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