Why don’t you try them and find out for yourself? Then the next day when you can’t walk, you can spend all day on the computer debating what part of the hami they affect.
I find this completely uncalled for. I do in fact do natural glute ham raises because I do not have a bench, or rather I should say I try to because I do not yet have the strength do to one unassisted.
I did not bad mouth the excercise at all. All I did was ask a question in the hopes of actually understanding how to train better.
Just in case though I will make my question a little clearer. I understand they are a great excercise, but why from an anatomical viewpoint are they so great?
Thanks for all the replies at any rate,
Hey sorry didn’t mean to offend, it’s just I would just hate for you not to try an exercise, just becuase some internet “guru” didn’t like the exercise. But from an “anatomical viewpoint” there are a couple reasons (that I think) that make is such a good exercise. First and formost, it is much like a pullup, in that there is little or no cheating when performing the exercise (as long as you keep your body relatively straight at the hip), and like a pull up you have to lift your own weight–you can lift more, but not less (compare that to the weight you used on a leg curl machine!) As far as musculature, you know that all the hamstrings are bi-articular and yes it is true that the primariy function of the hamis in a glute-ham is knee flexion, however I feel that they work quite strongly isometrically to keep the hip extented.
As a side note, I’m not sure of the EMG studies, but I would say that there mostlikely is some transfer from training knee flexion carring over to hip extension. Hope that answered your question.