When I am doing my dumbell MP's, I always feel that I arch the bottom of my back away from the seat to help me get the weights up.
However I think this may be defeating the object, whilst also putting un necessary pressure on my lower back.
Should i be concentrating on keeping my back slapped against the seat back rest, or just go with my current form?
However I think this may be defeating the object, whilst also putting un necessary pressure on my lower back.
Should i be concentrating on keeping my back slapped against the seat back rest, or just go with my current form?