Preparation Phase

To generate maximum force I need to contract as many segments as possible. I know I am contracting segments in my preparation phase because my lower body muscles are working. The more segments I'm using the more force I contract by using my larger muscles first will give me force and passing it to my smaller muscles will give me more force. Also, I know I am following the principle of sequencing because I am flexing my lower muscles.

 In the preparation phase, I am contracting my lower body muscles. This means that I am using my hips, knees, and ankle joints at this phase. The knee joint is a hinge joint and it's also flexing, caused by hamstrings and quadriceps, the hamstrings being the agonist's muscle and the quadriceps being the antagonist's muscle. The hip joint is a ball and socket joint, my hip is flexing because I am in a stance and all my joints a flexing, which is caused by the quadriceps being the agonist and the Gluteus maximum being the antagonist. The ankle is a hinge joint/Plane joint, you start with dorsiflexion, which is caused by the tibial Anterior being the agonist and the gastrocnemius being the antagonist.  The differences/similarities I can see in my joints and ideal are kinda the same as the professional one because we are both flexing our knee joints and we are standing in the same stance. 

In this preparation phase, I am using Newton's laws. The Newton's law that I am using in this phase is his 1st law. Newton's first law states that "an object at rest remains rest until a force is applied to create inertia" to overcome inertia I will need to produce force by using my lower muscles to overcome inertia.

In the preparation phase, balance and stability are important when performing a sporting movement. The line of gravity is the direction of a force of gravity going through the body downwards when the line of gravity is within the base of support you are stable, the base of support refers to the area beneath an object or person which includes every point of contact that the object or person makes with the supporting of the surface I can see that I am balanced because my two feet is on the floor which means I am stabled. My line of gravity is located where my belly button is, therefore I am stable which allows my body to produce enough force in the preparation phase. The differences/similarities I can see in my balance and stability compared to the ideal are kinda the same as the professional one because we are using the same base of support to keep our body stabled.