Barbells are widely used, regardless of the muscles of shoulders, back, arms, chest and other parts. Using barbells and iron pieces with different weights, and using special muscle strength training skills for many times, the whole body muscle groups are trained in muscle endurance, so that fat burning can be transformed into bodybuilding lines, muscle strength can be enhanced, body core ability can be enhanced, and muscles that are still slack after long-term exercise can be improved; In addition, it can also delay muscle aging, increase bone density, prevent osteoporosis and other effects, improve endocrine and improve physical coordination. It is one of the sports for men and women who want to keep fit and can engage in sports.

There are two kinds of barbells: standard barbells and non-standard barbells.

Standard barbell: It consists of barbell bar (bar), barbell piece and clip. International weightlifting competitions must use international standard barbells recognized by the International Weightlifting Federation, including men's barbells and women's barbells. The difference is mainly in the barbell bar, and the barbell piece is a standard. Men's barbell bar is 2.20m long and weighs 20kg, while women's barbell bar is 2. 15m long and weighs 15kg. The diameter of barbell bar is 0.028 m, and the largest barbell piece is 0.45 m. Adding rubber to the outer bread can increase the appearance and reduce the noise of barbell landing. The weight, color and model of barbell pieces are as follows: 25kg (big red), 20kg (big blue),15kg (big yellow),10kg (big green), 5kg (medium white), 2.5kg (small red), 2kg (small blue), etc. Each clip weighs 2.5 kilograms. The rule of adding barbell pieces is that the inner side (added first) is heavier than the outer side (added later), that is, the weight is added to the inner side and the weight is added to the outer side. Because the weight of the clip is 2.5 kg, it is necessary to add small barbell pieces below 2 kg (including 2 kg) outside the clip, and each side of such small barbell pieces is limited to 1 piece.