Last year, I hurt my back last year, so recently, I visited Dr. Noguchi of Sports Lab. He told me that I have the flexibility of a 50 year old and was like a tight rock or lumbering robot... After doing these stretches religiously, I feel my back has gotten much better, and I'm surprisingly back in the gym again!
Dr. Noguchi works with athletes. In addition to stretching advice, he also does acupuncture and massage therapy. Hope I got that right...