Weightlifting is another sport that often falls victim to over-training. In a world of moving heavy weights repeatedly, proper form is the best form of injury prevention. Muscle strains and tendinitis are the most common injuries, but in severe cases, muscle tearing and joint dislocations can result from a loss of control. As our population in the United States continues to age, weightlifting, or resistance training, has received a lot of publicity. Osteoporosis and sarcopenia are two conditions that affect our aging population. There are myriad risk factors associated with both osteoporosis and sarcopenia and resistance training is one of the most beneficial treatments for those conditions.