if you mean bench press, then that is deltoids, triceps, and pectorals (or chest)
The following muscles are used: Chest (upper chest specifically) Triceps Shoulders
Muscle used in Chess pass are Biceps and Triceps .
Breathing. These muscles are used to change the pressure in the chest so air can flow in and out of the lungs (on inspiration and expiration).
The bench press has two phases: eccentric and concentric. The first phase, as you lower weight toward your chest, is called the eccentric, or muscle-lengthening motion. The second phase, as you raise the weight back up, is called the concentric, or muscle-shortening phase. It is during the concentric phase that you can feel your chest getting tight. Learning which muscles are used during the concentric phase of the bench press is beneficial for focusing your mind on the correct area and therefore improving your exercise technique.The primary concentric mover of the bench press is the pectoralis major, which you may better know as the chest. Depending on which version of the bench press you are doing, you will be recruiting a specific part of the muscle group. The regular bench press on a flat surface mainly works your middle pecs. The incline and decline versions mainly work your upper and lower pecs, respectively.
The muscles that are affected by this work out are mainly your pectorals and deltoids, but also to a less degree, forearms and triceps. This exercise also helps with your latimus dorsi (lats). There are also back muscles involved that will be strengthened.
The bench press is a compound exercise that is performed with a barbell or dumbells and weight bench. During this exercise, you lift the weight to and from the chest from a face-up position. Being that this is a compound exercise, it works multiple muscle groups at once.Pectoral MusclesThe anatomical name for the chest muscles is the pectorals. The pectoralis major is the part of the chest that gets activated when you are pushing the bar straight up. The pectoralis minor gets recruited when your shoulders shrug forward. Of the two muscle parts, the main emphasis is placed on the pectoralis major. By changing the angle of your bench press to a declined or inclined position, you would place more emphasis on the lower chest and upper chest respectivelyBy Adewunmi Adejumo
It works out your triceps and mid chest the wider your grip the more your working out your chest and the narrower the more it works out triceps.
Skeletal muscle
This should be a painfully obvious answer. Yes...
Hockey probably gains the most muscle. In hockey, leg, chest. back, shoulder, and all your arms are used.
diaphragm
The pectoralis major is the muscle that is used when controlling the bar going down during a bench press.