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Muscles of the Leg - Anterior - Lateral - Posterior

by Jessica13 January, 2020

Health Cares

Based on the function of legs, most of the leg muscles are long muscles. The purpose of long muscles is to stretch leg when it comes to long distances. Body movements are created when these leg muscles stretch and relax. The functioning of small leg muscles is more important because these small muscles stabilize joints, create rotate movements, to large joint muscles and also helps to maintain other flexible movements. Most of the leg muscles are located at the calf and thighs. The human body consists of different types of muscles, in which some are weak and flexible while some are strong and thick. Quadriceps are made of leanest and strong muscles of our body. Extensors are muscles that make movements extended.

Thigh front Muscles

 There are four types of leg muscles, located at the front of the thigh, help knees to extend when needed;

1.     Vastus Medialis: this is a muscle shaped like a teardrop and located at the inner thighs. This muscle attaches thighs with the inner edge of the kneecap.

2.     Vastus Lateralis: it is located outside of the thighs and is one of the extended quadriceps. This muscle is extended from femur to the down kneecap.

3.     Vastus Intermedius: in between the vast lateral and vastus medialis it is located in front of the femur. This one is also an extensible quadriceps of muscles.

4.     Rectus Femoris: this muscle is also a quadriceps that is attached to the kneecap. This muscle affects less on the flexibility of muscles.

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Thigh back Muscles

Apart from the muscles located at the front of the thighs, some muscles are located at the front of the thighs. These muscles at the end of thighs are known as hamstrings that affect movements of the knee and hip. Hamstrings are originated from the hipbone and attach this with the tibia of the knee. These muscles are as follows;

1.     Biceps Femoris:  these muscles are also classified as strong & long muscles flex towards the knee. Originates from the thighs it extends towards the fibula of the knee.

2.     Semitendinosus: these muscles are extended from thighs to knees.

3.     Semimembranosus: From pelvis towards the tibia, it is extended down. Functions of this Semimembranosus includes it flexes knees, it extends thighs and rotates tibia.


Calf Muscles

Calf muscles are also a part of leg muscles that are responsible for the movement of the foot, toes, and ankles. Calf muscles are of following types;

1.     Soleus: these muscles are responsible for standing and walking. These muscles are extended from knees to down towards heel.

2.     Gastrocnemius: these muscles are also long muscles of the leg that are connected down towards heel. These muscles are extended and flex the knee, foot, and ankles.

3.     Plantaris: this muscle is one of the small muscles present in leg muscles that perform its function along with the gastrocnemius.

Another essential leg muscles are Achilles tendon that has stored energy for walking, running, and standing. This tendon is present at the back of the calf muscles.

Genetics of Leg Muscles

Different humans have different lengths of legs, and it is the game of genetics. Women's legs are slightly leggier then men's. Research has shown that 45% of women aged between 18-45 weight are off their legs and men's 44% of the weight is of legs. Our body is consisting of several muscles, and thus every organ is separately known as the muscular system. Although humans are different in their shapes, everyone has the same muscles of legs. Women mostly have massive thighs and stretched calf muscles because women are bulkier and more likely to gain weight than men's. Muscles of legs of bulky people are less likely to stretch because of fat. It is said that there is a snowball effect that states when we start gaining fat and become bulky, it lessens the strengths and functioning of muscles.

Leg Muscles and Body Composition

Researches have revealed that when we become at the age of puberty, our thighs and butts start gaining weight and fat. This is the age that helps to serve energy in women for breastfeeding after pregnancy. Researches also state that at a specific age period, women start gaining weight of some parts like from waist and knees and even from thighs.

Ways to Strengthen Leg Muscles

We can strengthen our leg muscles through several ideas, and the one most effective is to reduce weight and avoid being bulky. To maintain a healthy lifestyle, the first thing that needs to focus on is the strength of our legs or leg muscles. Strong leg muscles and calf muscles make your life easy by holding you properly. One having strong legs can exercise more than those having weak legs. According to the words of McCarthy, women lose their weight by dieting and have stronger legs than those who didn't. Another research has revealed that the size of the thigh and strength of their thigh muscles and calf muscles depends on their physical activity. Research studies have shown that an active women's thigh size is 24 inches while an inactive women's thigh size is 26.5 inches of the same age. This 2.5 inches difference makes a massive difference in appearance.

From thighs to foot leg are divided into different parts and Anterior compartment of the leg, lateral compartment of the leg, and posterior compartment of the leg that make more of its parts. The upper part of the leg consists of calf muscles, and thigh muscles make the basic anatomy of leg structure. Muscles of leg connect bones of legs and make it easy to move and rotate by making legs as a base. The function of muscles in our body and the way they maintain the balance of our body cannot be overemphasized. Legs are significant parts of our organization, and thus long muscles are there to protect long bones into the body. Verily in men's and women's leg muscles depend on the height and size of both respectively. Working and strength of leg muscles also relied on the body weight and gained fat of humans that may affect the functioning of leg muscles.


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