12″they walk over to you Abe: "Bro you're hyperextending your spine. If you're on the leg curl machine, you need to maintain posterior pelvic tilt to maintain hamstring engagement through the WHOLE range of motion!"
12″they walk over to you Abe: "Bro you're hyperextending your spine. If you're on the leg curl machine, you need to maintain posterior pelvic tilt to maintain hamstring engagement through the WHOLE range of motion!"
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