Hear what Boomers are saying about Boomer Fitness Camps and John Knox, Certified Personal Trainer. The Boomer Generation is into personal fitness, but it is so important that boomers who are starting an exercise program employ the help of an expert. John Knox can offer you fitness training as a personal trainer, or you can attend one of his Boomer Boot Camps offered throughout West Los Angeles. With John's help, you can maximize the outcome of your exercise program, get encouragement and ...