Weight training is one of the fastest, most effective ways to lose fat, improve muscle tone, and strengthen bones. It also helps guard against osteoporosis, diabetes, and heart disease. Weights for 50+ shows how easy it is for anyone -- at any age -- to get started with weights. It teaches exercises that are suited to varying ages and degrees of strength, including super-easy, easy, intermediate, and advanced.

The program in Weights for 50+ focuses on the use of small free weights (starting at just 3 lbs.), and includes stretches and release moves -- everything readers need to design a personalized weekly exercise plan. Weights for 50+ also describes proper training methods and explains how to achieve specific goals by varying the workout and carefully monitoring the number of repetitions. Last but not least, the author shows how to have fun and enjoy a workout for staying young.

Knopf, Karl

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.