The muscles used in the leg press exercise are your Quads primarily. Hamstring gets a good work out too.
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.
Extension of the arm at the shoulder is due to:Latissimus DorsiPosterior fibers of the DeltoidTeres MajorExtension of the elbow joint is almost entirely due to triceps brachi
supraspinatus, infraspinatus, subscapularis, teres minor
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.
By putting your body in different positions you can workout almost all muscles including your back muscles by doing a back extension with dumbbells or the most common exercise squats which workout your legs
Waist extension primarily involves the erector spinae muscles, which run along the spine and are responsible for extending and stabilizing the back. Additionally, the multifidus and semispinalis muscles also contribute to this movement by helping to extend and rotate the spine. The gluteus maximus may assist in waist extension, particularly when the movement involves the hip joint. Together, these muscles work to maintain posture and facilitate movements involving the lower back.
Extension of the arm at the shoulder is due to:Latissimus DorsiPosterior fibers of the DeltoidTeres MajorExtension of the elbow joint is almost entirely due to triceps brachi
Several muscles are used. Biceps brachii for elbow flexion, triceps brachii for elbow extension. Trapezius to raise arm. Deltoid abducts the arm. The pectoralis major allows internal rotation, adduction, and flexion of the arm. The pronator quadratus, pronator teres and supinator all arm forearm muscles that move the wrist. The brachioradialis, brachialis and aconeus are also used.
The versatile extension clamp is used to set up lab equipment including distillation. Extension clamps are used where an extension is needed and can be added to another clamp.
There are many muscles in the body that are used in a roundhouse kick. The abs are used, side muscles, thigh muscles, and the butt muscles.
An app can be used independently whereas an extension has to be integrated in a website before it is used.