I have been doing the stretch series for about 6 months now, and everytime I used to try narrow hurdler I would get cramp in the opposite hip(leg that is tucked).
I have since been sitting on a block of the outstretched side and the cramps have disappeared. This week I tried to remove the block and just go flat , one side was ok but the other (left leg tucked) gave me immediate cramp.
How can I work around this?
thanks!