Najea Dixon
Muscular Physiology
In our everyday lives, we use and depend on so many different parts of our body. We use certain parts of our body so much that we are not even aware of how important it is in helping us survive. Regarding the different muscles in our body, although there are so many of them, they all play an important role and are all dependent on one another. Muscles are crucial for stability and mobility. We all work our muscles and occasionally strain our muscles on an everyday basis, but individuals involved in athletic sports tend to work and stress their muscles more often. Considering an athlete, depending on what sport they play, may focus more on specific muscles that will help improve their performances. What muscles does a Basketball player primarily focus on?
A sport such as basketball focuses primarily on shooting a ball and running. A physical activity such as running uses nearly all leg muscles. Muscles such as the Quadriceps are used when moving your leg forward (Jarmey). These are a group of muscles that is located in the front of the thigh (Jarmey). Within the quadriceps are four separate muscles. These four muscles include the vastus medialis, vastus lateralis, vastus intermedius and the rectus femoris (Jarmey). The quadriceps help in the extension and stabilization of the knee, and it also helps in bending the hip (Jones).
Another muscle that assists in an activity such as running is the Hamstring. The hamstring is located behind the knee.
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.
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.
The study of the human body and its movements has been present for centuries. While there has almost always been an interest in the human body and its way of working, modern technology and scientific discoveries have greatly aided modern medicine and research of human anatomy and physiology. These days, the study of medicine is far more extensive than many people understand, and those who want to pursue a medical field have great amounts of work awaiting. Athletic Training as a profession in this day and age involves extensive schooling, training, and focus when on the job.
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
and this means I will be able to sprint faster. The quadriceps work with the hamstrings which are the agonist muscles at the back of the thighs that work with the quadriceps. They pull the leg back so I have the force to push off the ground quickly from the calves. Both the quads and hamstrings work at the same time on alternating legs, so sprinting is quickest when each is toned and elastic for my agility. The calves are also an important muscle because the muscles of the calves control foot flexion when running.
vastus medialis. Collectively the quadriceps muscle is the biggest in the human body and its purpose is to expand the knee. The specific task of the vastus lateralis muscle is to extend the lower leg and allow the body to rise up from a squatting position.(Hannan et al, 2000).
The biceps femoris is one of the three muscles including the semitendinosus, and the semimembranosus, that make up the group of muscles called the hamstrings. The hamstrings are located on the posterior side of the leg. The biceps femoris originates on the ischial tuberosity and inserts on the head of the fibula. The movement of the biceps femoris is responsible for the flexion of the knee and the external rotation of the lower leg. Flexion of the knee happens when the back of the foot is raised toward the back of the leg.
The anatomy is a major contributor to any injury. The three hamstrings are the semimembranosus, semitendinosus, and the biceps femoris. The hamstrings are responsible for flexing the knee and extending the hip
The knee joint is a hinge joint that connects the femur to tibia. The anterior muscles of the quadriceps and the posterior muscles of the hamstrings help stabilize the knee joint (Prentice & Bobo & Benson, 2014). The ACL consists of long rope like bands that fasten bones together to keep the knee stable. The ACL is one of four ligaments that stabilize the knee, and it is one of the most injured ligament in the knee. The medial and collateral ligaments run along the outside of the knee and prevent the knee from shifting side to side, and the anterior and posterior cruciate ligaments are located inside the knee and prevent the knee from shifting forward and backward (Prentice & Bobo & Benson, 2014). All these muscles and ligaments work together to keep our knee stabilized
One of the primary neuromuscular strategies for knee stabilization is through simultaneouscontraction of the quadriceps- and hamstring musculature. At knee flexion angles greater than15 to 30 degrees, co-contraction of the hamstrings during quadriceps dominant activities is believed to counteract the anterior displacement of tibia, thus protecting the ACL (Draganich,Jaeger
The quadriceps are comprised of four muscles: vastus lateralis, vastus medialis, vastus intermedialis, and rectus femoris. These muscles attach proximally at differing locations along the shaft of the femur and on the hip bone (rectus femoris only). They span the length of the femur and converge on the quadriceps tendon on the superior aspect of the patella and continue to the tibial tuberosity via the patellar tendon. The quadriceps are responsible for extending the knee, assisting in proper tracking of the patella, and preventing posterior translation of the tibia on the femur (Moore
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.
Playing tennis involves more muscles than simply your arm and wrists. It involves a series of complex movements that start with your feet and ends up swinging a tennis racket. It requires a honed and well-trained muscular system to perform with the required power and speed needed. The muscular system is one of the most important systems involved in the sport of tennis. The muscular system is the tissue of fibres around your bones. This is a main part of tennis because specifically these muscles will put force on the bones and pull them. This will result in the tennis player getting more power behind there hit and also helps the play with moving around the court in a quicker pace.
Almost all of the players who play American football are very muscular so they will be able to cope with hard contact. But this is not good for their health. A research shows that Football players had thicker carotid artery and larger brachial artery diameter during FMD. Also Systolic BP was significantly higher in football players at all measurements: retesting, submaximal exercise, maximal exercise, and 24-hour BP. Football players also had higher fasting glucose. And may be at increased cardiovascular
Although sports such as football and basketball are physically demanding, I, as a player of both, have noticed the similarities as well as the differences. For instance, in football, I play fullback, and I carry