Weightlifting, also called Olympic-style weightlifting, or Olympic weightlifting, is an athletic discipline in the modern Olympic programme in which the athlete attempts a maximum-weight single lift of a barbell loaded with weight plates. The two competition lifts in order are the snatch and the clean and jerk.
Never before in history of sport so many people grabed a bar at the same time as when crossfit was born. People finally know that these are best exercises to develope strenght, power and explosivness. These lifts specialy overhead squats and snatches improves your shoulder mobility.