DAvid Parise op facebook:
"The possibility of injury is an increased risk with participation in any high-intense fitness regimen like CrossFit, especially if you are new to Olympic-style weight lifting and plyometric workouts, or have a previous injury. Not only are the exercises themselves risky, but performing them under a fatigued state, such as during an intense circuit, increases the risk of injury even further.
If you are interested in CrossFit but are new to weight lifting or exercise in general, you should visit a CrossFit affiliate to receive the necessary personalized attention before attempting a WOD on your own.
If you take that route, however, be aware that the CrossFit coach may not have an appropriate educational background in sports conditioning. Strength and conditioning specialists like my friend Nick Tumminello as one example... spend years learning proper technique of explosive exercises and some have degrees in exercise science, bio-mechanics, or kinesiology. Again...I am just saying!!!!"