[busymom0]

Bodybuilding and powerlifting has been around for many years though and has more athletes than CrossFit. Powerlifting also uses a lot heavier weights but since the rules are extremely strict for form in competitive powerlifting, injuries are less common. Bodybuilding uses relatively lesser weights but focuses more on higher reps and symmetry for which you need good form. CrossFit tries to combine both - heavy weights and high reps which is a recipe for injury. Either do heavier weights and low reps or do relatively lighter weights and high reps. When they try to combine both, it leads to CrossFit type injuries. Add to that, your group of people yelling at you trying to motivate you into doing the 23rd rep on a poor back deadlift form and it gets even worse.