“No pain, no gain” is a harmful tagline for a healthy lifestyle. If pushing through pain progresses to a more severe injury, it can lead to the derailment of your fitness journey. Pain while working out is not normal. It is a warning sign that you are loading your muscles or joints improperly, explains Alexis Lowery, PT, DPT, OCS of Atlanta Physical Therapy. Physical therapists are clinically trained movement specialists equipped to keep your gains on track without pain.