Do Single Leg Glute Bridges = Hamstring Cramps? There's a solid chance that's what's going to happen the first time you do these, Hamstring cramps. And THAT tells you something. YOUR ASS ISN'T DOING IT'S JOB optimally.... And this is super common, "Research shows high gluteal muscle activity during a single-leg bridge compared to other gluteal strengthening exercises; however, prior studies have primarily measured muscle activity with the active lower extremity starting in 90 ° of knee flexion with an extended contralateral knee. This standard position has caused reports of hamstring cramping, which may impede optimal gluteal strengthening." - BUILDING A BETTER … [Read more...]