Hi, first time posting a question.
I have a flexible lower back and also pretty flexible hamstrings. I have been using the Jefferson curl to increase my pike mobility. Doing it the normal way gives me a dull ache in my lower back for a day or two afterwards.
I have tried to do it with a neutral spine to place more load on my hamstrings. The question is, is that variant as good as the normal one? Should I try to do more of the normal curl to increase my tolerance with loaded flexion exercises or should I adapt and do the neutral spine variant?
/Rickard