What you need to know: High-intensity interval training. Do each exercise for 30 seconds, with a 10 second break in between. The 12 exercises are:
- Jumping jacks (Total body)
- Wall sit (Lower body)
- Push-up (Upper body)
- Abdominal crunch (Core)
- Step-up onto chair (Total body)
- Squat (Lower body)
- Triceps dip on chair (Upper body)
- Plank (Core)
- High knees/running in place (Total body)
- Lunge (Lower body)
- Push-up and rotation (Upper body)
- Side plank (Core)
Read more: lifehacker, nytimes, ACSM Health & Fitness Journal