Скачать или смотреть Hamstring the knee supporter

Hi guys this is the short video about hamstrings , its function and its anatomy and a short note about agonist and antagonist..

Certainly, let's delve into a more detailed explanation of the hamstring muscles:

1. Anatomy of the Hamstring Muscles:

The hamstring muscles are a group of three long muscles located on the posterior (back) side of your thigh. These muscles run from the pelvis and hip bone down to the tibia and fibula bones of the lower leg. The three hamstring muscles are:

Biceps Femoris: This is the most superficial and the only two-headed muscle of the hamstring group. It consists of a long head and a short head. The long head originates from the ischial tuberosity (a bony prominence in the pelvis) and the short head from the femur (thigh bone). Both heads insert into the fibula and tibia bones.

Semitendinosus: This muscle originates from the ischial tuberosity and inserts into the tibia.

Semimembranosus: Like the semitendinosus, this muscle also originates from the ischial tuberosity but inserts into the tibia.

2. Functions of the Hamstring Muscles:

The hamstring muscles have several important functions:

Knee Flexion: The primary function of the hamstrings is to bend the knee joint. When the hamstrings contract, they pull the lower leg backward, bringing the heel toward the buttocks. This action is crucial for movements like walking, running, and cycling.

Hip Extension: The hamstrings also play a significant role in extending the hip joint. This happens when you move your thigh backward, as in activities like standing up from a seated position, running, or kicking.

Stabilization: The hamstrings help stabilize both the knee and hip joints during various movements, preventing excessive motion and potential injury.

Running and Sprinting: During running and sprinting, the hamstrings contribute to propelling your body forward by flexing the knee and extending the hip. They are especially active during the "swing phase" of running when the leg is off the ground.

Jumping: When you jump, the hamstrings are vital for generating power and height in your jump. They contract forcefully to extend the hip and flex the knee, allowing you to push off the ground effectively.

Deceleration: The hamstrings also come into play when you need to slow down or decelerate your leg movements. They help control the motion of your leg, which is important for activities like stopping after running or making controlled movements in sports.
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