by Charles Hugh Smith, Of Two Minds:
In Part 2 of our “health is wealth” series, Dr. Don Jewett of global medical leader UCSF offers expert advice on improving fitness.
Dr. Don Jewett of the University of California-San Francisco (UCSF), a medical school/hospital that’s on many “best in the world” lists, was kind enough to share some expert fitness advice in response to yesterday’s entry Health Is Wealth: Prevention, Fitness and Strength.
“I’m a retired Orthopaedic Surgeon who was Director of Physical Therapy for 10 years at Univ. of Calif. Medical School, San Francisco. I was on the full-time faculty for 27 years.
1. Your muscles have both “fast” fibers and “slow” fibers. Each is specialized for the named action, and the proportion changes, depending upon what your persistent activities are. Long Distance runners have almost all slow fibers. You can exercise the slow fibers with Tai Chi.
2. However, you will not get stronger unless the muscle is “tired”. Body builders and those with equipment go to the point of exhaustion. That works. But another way is to hold a given position such that the muscle trembles. Hold it that way as long as possible. In this way you can reach the “tired” state quickly …
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