2. Different exercise postures: bench press is a straight barbell to exercise pectoralis major, and shoulder press is a deltoid. Bending bar barbell can exercise arm flexion and extension barbell for triceps brachii training.
3, the scope of application is different: the straight barbell has a wider range of use and can be used to practice various parts of the body, especially heavy exercises. The curved bar barbell protects the wrist and increases the angle change, which is especially suitable for sculpting arm details.
Extended data:
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.
The weight values of all barbell pieces must be expressed in figures on the outside. 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.
References:
Baidu encyclopedia-barbell