This eye-catching football volume includes a discussion of the types of exercises trainers use to build overall strength and to build the strength and skills for certain positions. Author Jennifer Guess McKerley explains the laws of motion that determine how the ball moves when passed, punted, kicked, or caught, as well as how velocity, momentum, and mass determine the outcome of a tackle. The author also talks about equipment and how it protects players, and what types of injuries occur when it doesn't. The nutritional needs of football players and how their bodies respond to training are discussed, as well as the psychological aspects of winning and losing.