Source: 3 Things Your Personal Trainer Might MissTrainers are incredibly helpful in teaching better form and correct alignment, but no matter how astute a trainer is, he or she may miss a few things. To help protect your body from injury or strain, keep these questions in mind during your training session. Even though it's a trainer's job to keep you safe, it's still important to develop a keen eye for any bad habits that could present potential problems later. ...