legs, arms, and back muslces
Muscles within the brachium are responsible for the extension of the elbow. These muscles also work for the flexing of the arm as well.
extension, contraction
Which of these muscles is not responsible for flexion or extension of the arm?
An agonist muscle is a muscle that plays a part in the extension of a muscle. The agonist muscles for a knee extension are the quadriceps and hamstrings.
Triceps brachii, aided by anconeus
When a muscle contracts it causes flexion and when muscles relax they cause extension
There are five muscles worked when doing a triceps extension. The main muscle is, obviously, the triceps. Secondary muscles that are worked are the deltoid, pectorals major, latissimus dorsi, and teres major.
extensors / extensor muscles
Teo
The antagonists would be those muscles that cause knee flexion. Hamstrings (biceps femoris, semimembranosus, semitendonosis) are the primary knee flexors, and would thus be antagonists to knee extension.
when a hot girl moves in you want to make a good impression, then is the time to use prep formula, Grade "A".
The muscles which produce shoulder extension are: Latissimus Dosi & Pectoralis Major.