Selection of fitness ball:
Fitness balls with diameters from 80 cm to 120 cm. Fitness balls are mostly made of vinyl and filled with air. When selecting them, we should first look at whether they are made of vinyl, then check whether their appearance is round and damaged, and then check whether their elasticity and bearing capacity are appropriate. The average fitness ball can bear more than 200 kilograms at most. You can ask the salesperson to give some advice.
Selection of dumbbells:
1.PE cement dumbbell set: PE blow molding process outside, cement inside. (Not recommended)
1. The strength of the external stamping shell is very low, and the middle pressure joint is easy to be damaged, resulting in cement leakage and short service life of the product.
2. The specific gravity of the product is low, only about 1.8, and the product is large, which is not conducive to storage and exercise. Scientific research shows that weightlifting products with a specific gravity of 3.5-6.0 are most suitable for exercising human muscle reaction ability. For the same weight of wood and stone, the first reaction of human beings is that the stone will be much heavier. If you use low-weight products for exercise for a long time, your muscle reaction ability will be greatly reduced or even lost!
2. Rubber-coated dumbbell suit: made of recycled rubber with calcium powder added inside. (It is recommended to use high-quality packaged dumbbells)
The low-end encapsulated dumbbells are mostly made of recycled plastics, which have a pungent smell, are easy to deteriorate after a long time, are not good for health, often run aground on fitness programs, and even cause boredom. High-quality packaging mostly uses environmentally friendly rubber, which has a small smell. Because of the fine workmanship, it is difficult to distinguish between ordinary packaging and high-quality packaging.
3. Electroplating dumbbell sleeve: generally, casting-polishing-electroplating process is adopted. (recommended)
Electroplated dumbbells are better than encapsulated dumbbells. Electroplated dumbbells are brightly colored, never fade, and have no irritating smell. They are generally used for family fitness.