CrossFit: Constantly Varied High-Intensity Functional Movements. The workouts are performed at each person’s own fitness capacity with an emphasis on proper form and full body functional movements. Functional movements are ones that translate into the real world and into sports. For example, when in real life do you ever sit in a chair and do a bicep curl? Sports? I’ve never seen a football player or volleyball player doing leg extensions on the field/court. However, both in sports and everyday life, we are consistently running, throwing jumping, squatting, etc. All functional movements. CrossFit’s Goal: Increased Work Capacity Across Broad Time and Modal Domains.