These 12 Moves Make an Easy but Effective Bodyweight Workout

Plank jacks are the best of both worlds, because they combine the strength building of a plank and the cardio of a jumping jack. Start by stepping your feet out and build to jumping both out at the same time.

• Begin in plank position, with your shoulders over your wrists, your body in one straight line, feet together.
• Like the motion of jumping jacks, jump your legs wide apart, and then back together to complete a rep.
• Keep your hips down and glutes engaged, increasing your pace as you find a rhythm.
• Do three sets of 20-30 reps.