Muscle Testing

The other day I meet a naturalist doctor who did something called muscle testing. She had me lay down on my back with my arm pointed upwards. As I pushed against her arm she touched different pressure points on my body.

Most of the points on my body were good, but when she put pressure on my upper stomach area my arm lost it's steady pressure. This was also true when my bladder area was hit. Though I have never heard of this technique it seemed like a real test for finding problem areas. I have another meeting with her on Thursday for a consult.

Has anyone else experienced a Muscle Test? If so what did you think and/or do you believe in it?