When I am in the preparation phase, I can tell that I am using the knee, hip and elbow joint.
The knee joint is a hinge joint which is in the flexed position and the agonist (contracting) muscle is the hamstring and the antagonist (resting) muscle is the quadriceps.
The hip joint is a ball and socket joint which is in the flexed position and the agonist (contracting) muscle is the quadriceps and the antagonist (resting) muscle is the Gluteus Maximus.
The elbow joint is a hinge joint which is in the flexed positions and the agonist (contracting) muscle is the tricep and the antagonist (resting) muscle is the bicep.
In the preparation phase, I am using Newtons law. The law I used was the Inertia law where a body will stay in a rested state unless an unbalanced force is acted upon it. The way I was able to overcome inertia was by contracting my hamstrings and lowering my body which creates a greater force. High mass & high inertia = difficult to move.
In the preparation phase, I am also showing Balance and Stability. The line of gravity (LOG) can be defined as the line that goes through the base of support (BOS) when you are balanced, and unbalanced when your LOG is outside your BOS. The base of support can be defined as the point of contacts that someone makes with the supporting surface. My line of gravity is located in the middle of my body and in between my legs. There for I am stable which allows my body to produce enough force in the preparation. I can tell that I am stable because I have two feet on the ground which widens my BOS. The differences/similarities I can see in my balance and stability compared to the ideal are that my LOG and BOS are where the ideal points are.
