20. the figure below from ch.28 shows the sequence of events in a soccer kick. describe what is happening in each image. what happens to the opposite muscles in the muscle pair during each stage of the kick? the images show a leg about to kick the ball.

When a muscle contract, it will become shorten. To kick a ball, there are many muscles used for moving the leg. Muscle from the thigh will move the lower leg and the power of kick comes from this muscle group.  The muscle in the lower leg will control the feet and determine whether kick using the front or side of the feet.

Since the muscle in one side contract, the opposite muscle in the muscle pair will be flexed. The muscle in flex condition will be lengthened.