1, free weight equipment refers to dumbbells and barbell equipment. A combined musical instrument refers to a whole musical instrument composed of a variety of musical instruments.

2. Less free weight limit, more freedom when using. However, the combination instrument must be practiced according to the running track of the instrument design, and there are many restrictions.

3. Because the height and bones of human body are different, and the training trajectory is not completely consistent, it is more suitable to use free strength equipment. However, due to the trajectory limitation, the combined instrument is also safer to use.

Extended data:

There are many kinds of fitness equipment, which can be roughly divided into:

1, paddles: mainly used to enhance the coordination of arm strength, latissimus dorsi and movements.

2. Physical fitness equipment: Different from other fitness methods, users can freely switch between climbing stairs, walking, jogging and long-distance running in different exercise modes, with a completely zero impact experience. You can adjust your training mode through this instant mode switching function to achieve the purpose of training for specific muscle groups.

3. Elliptical machine: patented technology of smooth trajectory and cross slope allows users to exercise muscle groups in biomechanical posture, which increases the diversity and effectiveness of exercise. Zero resistance exercise reduces the occurrence of muscle strain.

4. Exercise bike: Like riding a bike, it is mainly used to strengthen leg strength and enhance cardiovascular function.

5. Treadmill: It is mainly used to exercise leg, waist, abdominal muscles and cardiopulmonary functions.

6. Treadmill: It is mainly used to exercise leg, hip, waist, abdominal muscles and cardiopulmonary functions.

7, waist machine: you can relax and massage your back.

8. Comprehensive multifunctional instruments: generally including the functions of chest expander, pull-ups, sit-ups and other instruments. Chest enlargement, pull-ups and supine pressing are mainly used to exercise upper limb strength and pectoralis major strength; Sit-ups are mainly used to exercise waist muscles and reduce excess fat in the waist and abdomen.

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