I have undertaken a personal training certification course and in the spirit of exploration I tried out a CrossFit class yesterday. The gym has a strong focus on Olympic weightlifting, which is not an interest of mine, but the gym is close to my house. In class, I tried out something I've not done before: lifting a barbell overhead (with no weights added, since I was a newbie and needed to learn form, phew!). I performed the first few reps doing my best to keep everything I've learned from your teaching in mind: neutral pelvis and strong core along with keeping my neck in line with the rest of the spine. Then I was instructed to "push my head forward" at the top of the lift. I wondered out loud to the instructor if this was in order to help access more flexion in the shoulders, but she said that instead it was in order to be able to bear the weight of the barbell better by stacking it above the spine and hips, and the head needed to be moved out of the way for this to happen.
I was wondering if you have any knowledge to share about this. Is it necessary to "push the head forward"? I could see that for people with limited shoulder flexion it may be necessary, however I wonder - is it the optimal position for this exercise? Is it functional? Is it ok to do or can it cause damage?
Thank you :-)