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“Another precaution is to avoid overflexion of the knee joint when doing quadriceps stretches (i.e., bringing the heel toward the buttocks). Practice”
Karl Knopf, Make the Pool Your Gym: No-Impact Water Workouts for Getting Fit, Building Strength and Rehabbing from Injury
“Remember: Aquatic heart rates are about 10–15 beats per minute less than your terrestrial target heart rate. If”
Karl Knopf, Make the Pool Your Gym: No-Impact Water Workouts for Getting Fit, Building Strength and Rehabbing from Injury
“If I knew I was going to live this long, I would’ve taken better care of myself!”
Karl Knopf, Healthy Hips Handbook: Exercises for Treating and Preventing Common Hip Joint Injuries

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