Cross training
Cross training is a physical practice where the trainings gather exercises from various sports by combining cardio-training, fitness, weightlifting, gymnastic... and is freely based on the CrossFit concept.
CrossFit
The CrossFit is a crossed training trademark promoted by the CrossFit Inc company. In the common speech, the word CrossFit is assimilated to the multidisciplinary sports practice following the principles stated by the eponymous brand.
The CrossFit combines mainly the athletic strength, weightlifting, gymnastic and endurance sports. The word crossfit comes from the contraction of cross fitness, called like this because it combines the various pre-existing physical and sports activities.
The CrossFit players run, paddle, climb a rope, jump, move objects, do weightlifting Olympic mouvements as well as body weight exercises, use kettlebells, gymnastic rings, boxes, sandbags and any other objects that can be used as weight.
The CrossFit focuses around ten athletic skills: cardiovascular and breathing endurance, muscle endurance, strenght, flexibility, power, speed, agility, psychomotor education, balance and et precision.
Source: Wikipedia