This book teaches a revolutionary warm-up routine that improves performance during exercise, training, and athletic competition. Dynamic stretching may increase muscle strength up to 30 percent over static stretching and this book offers over 200 step-by-step photographs clearly illustrate each stretching movement. Groundbreaking research has made the shocking discovery that static stretching, a traditional mainstay of athletes' warm-ups, has a measurable negative impact on performance. Holding a stretch for 30 seconds or longer doesn't prepare a muscle for exercise, it weakens the muscle.…
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Tennis training
