the shoulder muscle extends the arm
deltoids are the back shoulder muscles and trapezoids are the muscles around the shoulder/neck/back area
The shoulder press works the upper body muscles such as the deltoids and the triceps. The shoulder press also involves the core muscles.
The muscles involved in the external rotation of the shoulder are primarily the Infraspinatus and Teres Minor muscles.
During a neutral grip shoulder press, the muscles primarily worked are the deltoids (shoulder muscles), trapezius (upper back muscles), and triceps (back of the arms).
to stretch out your muscles. muscles like your leg muscles and shoulder muscles.
The shoulder muscles originate from the scapula (shoulder blade) and the clavicle (collarbone) and insert into the humerus (upper arm bone).
The shoulder muscles are located in the upper part of the human body, around the shoulder joint and upper arm.
The muscles involved in shoulder external rotation are the Infraspinatus and Teres Minor.
Shoulder raises primarily target the deltoid muscles, which are located in the shoulders.
There are actually four muscles which make up the shoulder adductors. These muscles include the Pectoralis Major, Coracobrachialis, Latissimus Dorsi, and Teres Major.
The primary muscles targeted during the dumbbell shoulder press exercise are the deltoid muscles, specifically the anterior deltoid (front of the shoulder), and the triceps.
Well it depends between what swimmer and what rugby player as there are some swimmers with very big shoulder muscles and there are some with small shoulder muscles but viseversa there are some weak shoulder muscled rugby players and strong shoulder muscled rugby players..