There are many ways to find a personal trainer once you've decided to hire one. Start by asking your athletic friends about their personal trainers, or about trainer sessions at your gym. You can also check online for personal trainer listings in your area and look for feedback posted on message boards. Here's what to keep an eye out for:

• When you peruse personal trainer listings, read the credentials. An undergraduate degree in exercise science isn't necessary to be an excellent personal trainer, but a college degree in a health or fitness-related subject is a plus.
• Certification from an accredited program is key. Although a certification alone doesn't guarantee a great trainer, a reputable certification process involves several months of study and classes followed by an exam. This process is meant to protect the public by weeding out unqualified trainers.
• Some physical therapists and even registered nurses are becoming certified as trainers. Not only do they have added insight into the workings of your muscles, but you may be able to get some reimbursement from your health insurance provider if a doctor recommends sessions with a physical therapist for injury treatment or post-surgery rehab.

If you are a fitness professional, being listed on an online directory is a great way to get your name out there and make yourself known to potential clients. Be sure that your listing provides your current contact information and includes all degrees, certifications and special areas of expertise. For example, if you know how to train someone for competitive cycling or kickboxing, say so. Also, if you are a personal trainer being listed, remember: client testimonials go a long way.