This book presents data on the motions involved in common athletic activities, including walking, jogging, running, jumping, push-ups, sit-ups, jumping jacks, and jumping rope. Graphs show the body in motion over time, showing the x-y positions of hip, knee, and ankle, shoulder, elbow, and/or wrist during exercises. These data can be used for lesson plans by teachers and parents. Note: These biophysics data are samples from one individual and are not representative of the population."