Core Strength for 50+: A Customized Program for Safely Toning Ab, Back, and Oblique Muscles

Stay young, improve your mobility and prevent injury with the bestselling fitness guide for core strength training for 50-plus from Dr. Karl Knopf.

From swinging a golf club to carrying a bag of groceries, the core is everything. Balance, agility and youthful stature are just a few of the benefits of a toned and powerful midsection. Core Strength for 50+ has everything you need to:

- Improve posture
- Enhance sports performance
- Guarantee low back health
- Avoid injury

With workouts ranging from basic mat work routines to unstable training with foam rollers and stability balls, Core Strength for 50+ provides more than 75 exercises that build and maintain strong muscles in the abs, obliques, lower back and butt.

Dr. Karl Knopf has been involved in the health and fitness of older adults and the disabled for more than forty years. During this time he has worked in almost every aspect of the industry, from personal training and therapy to consultation.

While at Foothill College, Karl was the coordinator of the Adaptive Fitness Technician Program and Lifelong Learning Institute. He taught disabled students and undergraduates about corrective exercise. In addition to teaching, Karl developed the "Fitness Educators of Older Adults Association" to guide trainers of older adults. Currently Karl is a director at the International Sports Science Association and is on the advisory board of PBS's Sit and Be Fit show.

In his spare time he has spoken at conferences, authored many articles, and written numerous books on topics ranging from water workouts to fitness therapy. He was a frequent guest on both radio and print media on issues pertaining to senior fitness and the disabled.