The primary muscle group used in lunges is the quadriceps, hamstrings, and gluteus maximus. These muscles commonly insert at the tibia via the patellar tendon for the quadriceps, while the hamstrings insert at the tibia and fibula. The gluteus maximus primarily inserts on the femur and the iliotibial band. These insertion points facilitate knee and hip extension during the lunge movement.
The primary muscle attached at the point of insertion is the muscle that undergoes the most movement when the muscle contracts. For example, in the bicep curl exercise, the bicep muscle is the primary muscle attached at its point of insertion on the radius bone in the forearm.
The triceps muscle is the primary muscle used in a cable extension.
medial surface of the tibia
These muscles all have a ligament of insertion which is called the patellar ligament. This ligament inserts to the tibial tuberosity.
Insertion of muscles are located in different areas depending on the muscle in question. The insertion of the latissimus dorsi muscle is the arm.
The sternocleidomastoid muscle inserts at the clavicle. It originates from the sternum and the clavicle, and its primary actions involve rotating and flexing the head.
pecs triceps anterior delts
The insertion of a muscle is the place where it attaches to the bone that the muscle moves.
Some common workout movements for building muscle strength include squats, deadlifts, bench press, pull-ups, and lunges.
The origin of a muscle is where the muscle starts ("the starting point"). The insertion of a muscle is where the muscle ends ("the ending point"). Also, the insertion of the muscle is what moves a lot (contrary of the origin where the muscle mostly stays stationary).
The "movable" end of a muscle is called the insertion. The "immobile" end is called the origin. Shortening, or contraction, of a muscle causes the origin and insertion to become closer to one another.