Details of dumbbell bench press
Lie down on a bench press, hold a dumbbell with your elbows bent, your fists facing each other, your palms facing your legs, and the axis of the dumbbell located 1 cm above your nipples, against your chest.
Push up, draw your elbows inward, and press your elbows together with your chest. When the arms are straight, the center of gravity of the dumbbell is close to the support point of the shoulder joint.
Then, open the two straight arms to both sides, slowly bend the arms, and drop the dumbbell vertically. When it reaches the lowest point, do a push-up motion. Repeat
