Books by Karl Knopf
Resistance Band Workbook: Illustrated Step-by-Step Guide to Stretching, Strengthening and Rehabilitative Techniques Rating: 4 out of 5 stars4/5Kettlebells for 50+: Safe and Customized Programs for Building & Toning Every Muscle Rating: 0 out of 5 stars0 ratingsHeal Your Frozen Shoulder: An At-Home Rehab Program to End Pain and Regain Range of Motion Rating: 4 out of 5 stars4/5Weights for 50+: Building Strength, Staying Healthy and Enjoying an Active Lifestyle Rating: 3 out of 5 stars3/5Foam Roller Workbook: A Step-by-Step Guide to Stretching, Strengthening and Rehabilitative Techniques Rating: 4 out of 5 stars4/5Core Strength for 50+: A Customized Program for Safely Toning Ab, Back & Oblique Muscles Rating: 0 out of 5 stars0 ratings