Track & field building strength
by Dan Zadra

Popularity 2
Explains how to make the muscles stronger through a careful program of exercise, good food, and plenty of sleep. Exercises include rope skipping, bicep curls, push-ups, and jump squats.
ExerciseJuvenile literatureMuscle strengthPhysical education and trainingPhysical fitnessTrack and fieldSports, juvenile literatureSports