"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." YOU MIGHT THINK back to your childhood gym class and remember learning the basics of physical fitness, ...

The jumping jack is an effective way to stimulate all the vital muscles of your body. It is a full-body exercise used in cardio and warm-up sessions. Jumping jacks include resistance and aerobic ...

Each branch of the armed forces uses a simple bodyweight exercise to keep everyone in peak physical condition — they clearly understand the benefits of jumping jacks! While exercises like squats, ...

YOU MIGHT THINK back to your childhood gym class and remember learning the basics of physical fitness, setting a foundation for the grown-up workouts you continue to do today. While you likely keep ...