You can do it even if you have a back injury. Because of the soft stress, the yoga ball is relatively safe, even people who need to recover from back injuries can practice it, which can avoid excessive impact on joints and is relatively easy to do.

Fitness ball is one of the traditional health care devices in China. There are stone, steel, copper, jade and cloisonne fitness balls. Mainly produced in Baoding area, also known as Wang blacksmith iron ball. The reason why fitness ball is beneficial to physical fitness lies in the moderate movement of fingers and palms when playing, which regulates the meridians of the body.

Traditional fitness ball:

1. Fitness ball makes fingers, palms and wrists flex and stretch flexibly through the movement of fingers and palms, promotes the movement of upper limb muscles such as fingers, wrists and elbows, and prevents and corrects symptoms such as numbness, trembling and decreased grip strength of upper limbs caused by degenerative diseases of the elderly.

2. The fitness ball stimulates the second and third metacarpal bones of the palm, which is conducive to regulating the function of the central nervous system, achieving the effects of calming the nerves, strengthening the brain and improving intelligence, thus enhancing the physiological functions of internal organs and exerting the physiological effect of "moving is not bad".