The direction of the knee joint movement is regularly controlled by the ligaments and geometric constraints of the articular surfaces (Woo et al., 1999). The movements of the knee can occur in different directions which gives each ligament a multifunctional purpose. The major function of the anterior cruciate ligament is to prevent extreme anterior tibial movement in different degrees of flexion. The ligament itself aids significantly to the stabilization and the kinematics of the knee joint.In addition, the ACL functions as a major secondary restraint to internal rotation, particularly when the knee is near full extension.(Duthon et al., 2006)
A study was performed in order to better understand how different sports and their loadings on the bone structure affect muscle performance and joint moment, depending on the structures of the upper and lower extremities. The purpose of the study was to see if dense bone masses help construct stronger bone structures in athletes and if the nonweight-bearing upper extremity affects bone structure. The subjects that were tested consisted of one hundred and thirteen female athletes. These athletes were representative of volleyball, hurdling, tennis, badminton, squa...
This skill involves jumping in the sagittal plane about the transverse axis. It consists of hip, knee, ankle, and shoulder joints. In the preparation phase in propulsion, the subject has flexed knees and hips which will need to be straightened by the strength of their corresponding joints such as the hinge joint at the knee joint. The hip joint is a ball and socket joint that bears the body weight and allows for jumping motion. During th...
Current literature has shown that the sagittal plane biomechanics factors such as greater posterior ground reaction force, small knee flexion angle and greater quadriceps muscle force play a major role in ACL loading. G Li study showed that ACL loading increase as the knee flexion angle de...
My understanding of kinesiology prior to enrolling in the course, is that I knew kinesiology is the scientific study of human movement , and that it involved sports and exercise and physical activity.I 'm interested in kinesiology , because I love anything that has to do with sports, and to get more of a detailed report on how human movement plays such a big role in the sports world.I have played sports for most of my life my interests our football, basketball,baseball.I started football my eighth grade year, and continued to play threw high school, until I tore my meniscus and mcl so I skipped my junior year of football , and came back my senior year had a really great season started at right offensive tackle.Missing my junior year in football really took a toll on me ,I could have gained so much more experience playing if so. I 've played basketball probably since the third grade , and continued to play threw high school even threw my knee injury ,I played travel basketball as well a
The higher the infirmity, the lower the percentage. Global rating of Knee Function scales deliver a technique of attaining statistics in a more quick, flexible, and efficient way. Although, with any conclusion quota important readings of outcomes can only be accepted with the thought of the clinometric assets, powers, and flaws of the tool. Single leg hop tests is a technique that your doctor may practice to define your aptitude to return to exercises, sports and events after knee surgery. It is generally practiced throughout the return to function stage in an anterior cruciate ligament restoration procedure. This is used to evaluate the useful firmness of your knee (Shen. W,
The muscular system is simply fascinating for wherever you look at it. It is essentially a network of tissues that control movement of and within the body, i.e. gives movement to the human body and function to the viscera. Without the muscular system, all essential body functions may not occur. Without it, we would be a smooth and immobile pile of organs, skin and bones.
An estimated 50 million Americans have suffered or are suffering knee pain or injuries. Most of these pains, sprains, and strains could probably have been avoided with proper conditioning (Fox, 147). I have had knee pain since my freshmen year of high school and have finally taken the initiative to find some exercises that will help ease this pain, and build muscle strength in the surrounding areas to avoid another possible injury.
Sobolewski, E. J., Wagner, D. R., & Bressel, E. (2011). Effect of static stretching and jogging on knee extension isokinetic peak torque. Isokinetics & Exercise Science, 19(3), 157-162.
The main theories behind why muscle forces accelerate the body upwards greater in countermovement jumps in comparison to squat jumps: a brief review
Knee joints are one of the strongest and most important joints in the human body. It
With the aim of the project identified, the scope of the project was narrowed to coincide with the time available for the project. It was decided to narrow the focus of the project to one specific joint and the joint chosen was the knee. An investigation was undertaken to better understand the knee joint in order to evaluate how the system proposed by this project could help improve knee rehabilitation. The knee joint is the largest, most complex, and possibly the most vulnerable joint in the body, it is medically known as the tibiofemoral joint. This joint is a complex hinge joint and in addition to allowing flexion and extension, it permits limited rolling, gliding, and rotational movement. This joint is dependent on the muscles and ligaments which surround it for strength. The structure of knee is examined below:
Nisell R. (1985) Mechanics of the knee: A study of joint and muscle load with clinical applications. Acta Orthop Scand 216; 1-42.
Lee SE, Cho SH. The effect of McConnell taping on vastus medialis and lateralis activity during squatting in adults with patellofemoral pain syndrome. Journal of Exercise Rehabilitation. 2013;9(2):326-330