Thomas Griner warns one not to do hatha yoga and hold poses, as he believes it activates the stretch reflex and increases lactic acid in the muscle, etc. However, Michael Alter in his book The Science of Flexibility says that lactic acid does not build up with static stretching. I’ve always delineated a significant difference between the safe static stretch as done in hatha and the stretch reflex activated by fast and ballistic stretching. (I’m also aware that Griner seems to be quite a materialist with little to no belief in the flow or prana or chi in the body.) I would appreciate your comments on this issue.
Namaste, Bob, PT, Colorado