Usually, a gym course is led by a professional fitness coach, and the purpose of exercising is achieved through a series of exercise movements and the use of equipment. These courses can include aerobic exercise, strength training, unarmed exercise, yoga, dance and other forms of exercise.

Participating in gym courses will help to improve the flexibility, cardiopulmonary function, strength and physical fitness of the body, and also provide professional guidance and supervision to ensure correct, effective, safe and orderly exercise.