[Barbell bench press to train chest muscles] The back of the head, upper body and buttocks are close to the bench, and the feet are naturally wide apart, about 30-40 cm apart. Hold the barbell with both hands, wrap the barbell with your thumbs, and use the other four fingers to Form a full grip with palm edges facing up. Lift the barbell from the bench press rack, straighten your arms, and move the barbell vertically above your collarbones, tightening your shoulder blades on your back. After holding for a few seconds, lower the barbell until it is close to your chest. Different weights require different reps.