Barbels are essential equipment in the gym. The length of long barbells is generally about 2.2 meters, the weight is about 20 kilograms, and the middle diameter is generally around 28 millimeters. Some long barbells have non-standard weight and diameter, but there is not much difference. Short barbells are usually 1.2, 1.5, or 1.8 meters, and 1.5 meter short barbells are more common. Short barbells generally weigh around 10-15 kilograms, and female members are not equipped with individual barbells in the gym.
When exercising in the gym, there is no need to pay special attention to the weight of the barbell. Long barbells can be calculated based on 20 kilograms, while 1.2-meter or 1.5-meter barbells can be calculated based on a weight of around 10-15 kilograms.
Long barbells are generally used for heavy weight exercises such as push ups, hard pulls, and squats. First, heavy barbell pieces are hung, and then small dumbbell pieces are hung to ensure that the center of gravity of the barbell is symmetrical and balanced, allowing the barbell to be evenly stressed. The outermost part of the barbell needs to be fixed with a clamp, although the barbell generally does not fall off, adding a clamp is only to prevent accidents from happening. Some barbell bars, regardless of their weight, have the same diameter but different thicknesses.
On both sides of the barbell, there will be patterns on the position where the barbell is held, which increases friction and also has smooth parts. It is generally used to adjust the grip distance. The angle between the back of the hand and the forearm during supine push is generally less than 45 degrees to avoid wrist injury. Beginners should try to grip the entire bar as much as possible. With experience, they can hold it half way, which is more comfortable and in line with natural angles.

When exercising the middle bundle of the deltoids, do a wide grip upright rowing, and when exercising the back bundle, do a prone barbell lift. Due to the wide grip distance of both hands, it is best to choose a short bar of 1.5 or 1.8 meters, otherwise the grip distance of both hands is too narrow and the movements will be non-standard. Long barbells can also be used.
The above types of barbells are relatively common, and the following are some relatively rare barbells.
The water buffalo barbell looks like a bent barbell, arched upwards in the middle. When squatting, the position of the hand is relatively low, suitable for people with insufficient shoulder joint mobility, and the movements are exactly the same as ordinary barbell squats. When lying down, the hands can be lowered to a lower position to fully stretch the chest muscles, but it is not suitable for people with shoulder joint injuries.
Arched barbell, this is a unique shaped barbell. From the perspective of the force acting on the instrument, it is somewhat like carrying a burden. During deep squats, there are slight differences in weight and force compared to ordinary barbell squats. At the moment of squatting, it is necessary to clamp the body tighter, making it difficult to squat quickly. For those who are accustomed to doing quick movements, this device can help reduce the speed of the movement.
The curved horizontal barbell is somewhat similar to the arched barbell, except that the arched distance is relatively short, which is more suitable for increasing the horizontal pushing range. People with shoulder injuries should control the amplitude of the supine push, as excessive amplitude may cause shoulder pain.
Swiss barbell, also known as football barbell, has similarities with the circular barbell mentioned earlier, which can be seen as a simplified version of this barbell. Swiss barbell is not only suitable for doing hammer lifts to exercise the brachial muscles, but also for doing push lifts, arm flexion and extension, push bench, rowing and other movements.
The most common of the above barbells is a regular barbell. When exercising, it is important to choose the appropriate barbell and weight. The weight should not be too large, and the muscles should be able to fully control the barbell. Do not use inertia, and pay attention to peak contraction, centrifugal force, and centripetal force. When exercising, barbells are usually used first, followed by dumbbells, and finally fixed instruments.