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May 10, 2018 at 10:23 comment added mdpead Hmm I see what you're saying. I'm not sure how to compare glute activation at the bottom position with glute activation at the good morning position, and I suspect it would differ greatly between individuals (both due to their anthropometry and relative hamstring / glute contribution). Whatever the case, I think there is a possibility that, either through glute weakness or failure to engage the glutes properly, one could struggle to extend or even maintain the hip angle out of the bottom.
May 9, 2018 at 14:05 comment added David Scarlett Yes, but shifting into the good morning position increases the moment between the bar and the hips, greatly increasing the total hip extension torque required. I find it very difficult to believe that the relatively small increase in torque from the hamstrings when the knees are partially extended could offset the large increases in hip extension torque that come from shifting the hips backwards.
May 9, 2018 at 10:56 comment added mdpead ncbi.nlm.nih.gov/pmc/articles/PMC3820173 In conclusion, maximum torque of hip extensor and HAM activation were significantly higher at 0°of knee flexion than at knee flexion angles of more than 60°. GM activation increased at knee flexion angles of more than 60°
May 8, 2018 at 23:43 comment added David Scarlett Good mornings are a glute exercise, and place the hips in a position where the required hip extension torque is greater than that required in a low-bar squat. You definitely can't reduce the load on the glutes in a squat by shifting into a good morning instead.
May 8, 2018 at 8:45 comment added S.D Sounds reasonable.
May 8, 2018 at 8:24 review First posts
May 8, 2018 at 9:02
May 8, 2018 at 8:21 history answered mdpead CC BY-SA 4.0