KIN 480 KINEMATIC ANALYSIS OF A SQUAT SNATCH.1. Description
Performing a Squat Snatch is a form of Olympic weightlifting practiced by most athletes
... [Show More] to promote whole body muscular strength. Though it is used as a compound body building mechanism, appropriate form is difficult to attain. The aim of the snatch is to lift a barbell with appropriate weighted plates by the performer, from a squat to standing position by moving the bar in unison from a preparatory position on the ground to a well- balanced position overhead with arms locked out. This movement in a continuum scale falls between simultaneous and sequential because it has aspects from both ends of the spectrum. During a squat snatch the joints are all moving simultaneously, but at the same time, the body segments are moving upright in a certain order sequentially.
2. Purpose of Squat Snatch
To lift a barbell with twenty- five pound plates on both ends off the ground safely with efficient form and accurately held above the head in a standing position with both shoulders externally rotated and elbows extended. To analysis the kinematic movements and muscular characteristics of a cross fit athlete performing proper squat snatch technique. Achieving proper technique will improve athletic performance as a result of the explosive type movements of a squat snatch.
3. Classification of Motor Skill
Giving motion to external object by lifting and carrying weight resistance
4. Underlying Mechanical Objective
A) Manipulation of objects
B) Maximum effort
C) Maximum force
B. Description of Movement Phases
1. When a subject performs a movement such as a squat snatch he or she will transition through a sequence of 5 events and 4 phases. The subject will begin in the preparatory phase where the barbell is touching the floor from which the subject will lift the barbell upward to the knees, completing the 1st pull. The subject will then thrust the hips forward making contact with the barbell and continue to drive the barbell upwards, concluding the 2nd event as well as the second pull. The subject will then drop beneath the barbell into an overhead squat catching the barbell above the head with the arms fully extended while maintaining a squatted position. This would result in the conclusion of the 3rd and 4th event, the transition and catch, along with the 3rd phase, the lowering phase. The subject will then stand up with the barbell overhead, known as the rising phase which will take the subject to the final event, the standing position, completing the movement. [Show Less]