How Do Muscles Affect The Human Body

balance of the body also flexion on the back leg when the ball is being released ending in a plantar flexion position .

In order for maximum force to be generated, a tennis player needs a good stable base from where they can begin the movement. The tennis serve begins with flexion of the knee joint caused by the hamstrings. Then comes extension of the knees as well as hip flexion to start the movement - both of these movements are initiated by the quadriceps. The Erector Spinae muscle causes trunk extension to allow the abdominals to fully flex the trunk and generate the force that is then transferred to the upper body. The deltoids and pectorals major are used to flex the shoulder. These muscles are used to accelerate the whole arm while also stabilising the shoulder. Once the arm has begun to accelerate towards the ball, the tricep brachii is then used to

system is to provide movement for the body. The muscular system consist of three different

To maintain effectiveness of muscle and bone activity, the effects of on the musculoskeletal system are the greatest benefits a person can ask for.

Punting a football can be intensively and precisely explained through the study of structural kinesiology. Punting is a skill that is often referred to as kicking. It is performed by releasing the ball from the hands and kicking the ball before it strikes the ground. Punting is an action that takes place in the sagittal plane around the frontal axis. The joints involved are the: atlantooccipital (cervical), intervertebral (lumbar), scapulothroracic (shoulder girdle) glenohumeral (shoulder) humeroulnar (elbow) radiocarpal (wrist) metacarpophalangeal and interphalangeal (fingers) acetabularfemoral (hip), tibiofemoral (knee), talocrural (ankle) and the metatarsophalangeal and interphalangeal (great and

As explained by Opar (3) the hamstring consists of three muscles, biceps femoris (BF), semitendinosus (ST) semimembranosus (SM), this composes a muscle group crossing the hip and knee joint that acts synergistically in extending the hip and flexing the knee.

Jumping (bilateral): Hip and knee is in extension, while ankle is in plantar flexion, and shoulder abduction and flexion while in the air.

Hip flexion/ Knee Extension; Hip extension/ Knee flexion. Major muscles involved include the quadriceps, the inner thigh, the hamstrings and gluteal region. Also, leg strength in the calve muscles is important.

These muscles begin at the ischial tuberosity, which is at the bottom of the pelvis. The muscles meet at the knee joint and end at the lower leg, where they are joined together through connective tissue that attach the tendons to the bones like double-sided tape. The hamstring muscle groups work to help extend the leg back and provide motion at the knee. Due to the crossing

The human muscular system is made up of over 600 connecting muscles. All of the muscles work together in sync to make your body move in inumerable different ways.

The quads include the rectus femoris, and the vastus lateralis, intermedius, and medialis. This muscle group shares a common tendon at insertion. The patellar tendon inserts at the tibial tuberosity, and within this tendon lies the patella. The patella is anterior to the femur-tibia articulation, and this sesmoid bone increases the leverage of the quads by acting as a pulley. The major contributor to the stability of the knee joint is the strength of the quads. The only muscle that assists in extension is the tensor fascia lata.

The next stage of the instep kick in soccer is the swing limb loading stage or the wind up of the kicking leg. This is the part of them movement that produces power and force essentially transferring over into the next phase. This part of the movement involves a concentric contraction of the gluteus maximus and hamstrings that results in hip extension making the hip rotate internally due to the concentric contraction of the gluteus medias. Knee flexion is the main

Maintenance of posture - Skeletal muscles contract and make small adjustments almost continuously to hold the body in stationary positions, such as sitting or standing. Stabilize joints - Skeletal muscles add stability to joints that have poor reinforcement and articular surfaces that do not fit well, such as in the shoulder and knee joints¯ Heat production -

In this, they compare to the body as an electrical piece of equipment. It is controlled by the brain, or the “computer”. When the body is overstressed, it may be possible that a few muscles become weak. The main tool used in kinesiology is muscle testing. If a football player has a muscle in the appendicular body region, such as the leg, that is stressed then they will not be able to hold it in a certain spot while it is being touched. As an example, a football kicker kicks a ball and his ginglymus joint in the knee becomes unbalanced. As the leg joint becomes weak, it could have been caused by an anterior or superior muscle to the leg muscles. They can find out what is wrong with the knee by asking him about his if he could flex his leg or if he had hyperextension during the kick. Once weakening is located, they can figure out what caused this weakening in the muscle or joint. The brain is the main source of the body, so they can rebalance the joint in the body.

The term lipid refers to a broad category of molecules, which serve a wide range of purposes in nature. Lipids tend to be hydrophobic in nature but there are also lipids that are amphiphilic as well. It is this characteristic that allows these group of structures to serve a range of functions. In the human body there some important lipids include glycerolipids, glycerophospholipids, and sterols, and sphingolipids. Glycolipids are important as they serve as the body’s way of storing energy. Glycerphospholipids are important as they make up the structure of cell membranes.1 Sterols are important because they are necessary for membrane rigidity and used as hormones and means of signaling in the body. Sphingolipids, particularly Sphingomyelin are another group of lipids that serve an important part of cells structure as they are found in plasma membranes of myelin sheaths.1 With this in mind, lipids are regulated and errors in the mechanism of storage and degradation can have a negative effect on the body.