In a recent study, men who worked with a trainer got 30 percent to 45 percent stronger one-third faster than those who exercised on their own. Pick the wrong trainer, however, and you'll be setting yourself up for a big hurt, at worst. If you're under medical orders to get in shape or working to recover from an injury, find out which trainers your doctor recommends. Request references from trainers you are considering and check them out. Find out if they are certified, and by whom.
More reputable organizations require heavy classroom work followed by challenging exams.
And to keep their designation, trainers must complete continuing-education classes and regular testing. Several for-profits mentioned included the International Fitness Professionals Association and the Aerobics and Fitness Association of America. A personal trainer who specializes in one type of workout should not be expected to excel in another. Sometimes a trainer's area of expertise is revealed in his or her certifications. Avoid working with a personal trainer not covered by liability insurance, either through a health club or his own policy.