What is CrossFit?

CrossFit, a trademark of CrossFit Inc., is a strength and conditioning program with the aim of improving, among other things, muscular strength, cardio-respiratory endurance, and flexibility. It advocates a perpetually changing mix of aerobic exercise, gymnastics (body weight exercises), and Olympic weight lifting. CrossFit Inc. describes its strength and conditioning program as ‚Äúconstantly varied functional movements executed at high intensity across broad modal and time domains," with the stated goal of improving fitness.