Essay about Squat Physiology - a Brief Discussion

1900 WordsMay 18, 20088 Pages
Abstract: This report will attempt to define the sports skill ‘the squat’ by describing the associated physiology in its performance. Topics of discussion will include: Mobility and Stability; Development of Force; Coordination of movement; Delivery of Energy; Maintenance of Working Muscles; Integration of Systems and Functions. Introduction: Often named “The King of all Exercises”, the squat is a complex movement which targets the Quadriceps, Hamstrings and the Gluteus Maximus muscles, amongst others. It is an exercise which Physiologists, Sports Scientists and Personal Trainers will all agree is a necessary component of any weight lifting or rehabilitation program. "[the squat] is capable of inducing more and faster muscle growth…show more content…
Therefore there is a change of length in the hamstring, which is obvious because there is flexion and extension of the knee joint. How, then, can the hamstring also be a stabiliser? We must remember that because of the complex nature of the squat, some muscles will take on more roles than simply pushing or pulling. In this case, the hamstring will stabalise the whole knee joint, counteracting the anterior forces generated by the quadriceps. Finally, the rectus abdominus and obliques in the midsection with the erector spinae in the lower back also stabilise the subject. Development of Force: In the squat there are many forces applied on the subject. These include internal and external forces. The external forces include: acceleration due to gravity, the mass of the weight across the subjects back, the resultant force from the ground and friction between the feet and floor. Internal forces include those between joints, tendons, ligaments and finally muscles. Also, there is an intertial force on the whole body between the flexion and extension phases of the squat. See mobility and stability for forces around knee. Forces required to execute the squat are given by muscles described above. Coordination of Movement: During different phases of the squat, muscles are doing different tasks in moving and stabilising the body. Similarly, there is an order to which muscles move first. Before the downward movement begins,

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