Upper Body Challenge Workout for Pc

1. Intrigued? Get started with this exclusive upper-body workout from Harney's new book HIIT It! In less than 30 minutes, these highly effective circuits will target and strengthen every muscle above your waist.

2. Bottom line: HIIT is quick, effective, and the perfect way to train for anyone who's short on time and wants to see results stat.

3. High-intensity interval training, or HIIT involves short bouts of extreme effort alternated with periods of rest.

4. Research suggests that HIIT can super-charge fat burning , boost metabolism , and improve cardiovascular fitness .

5. Plus, the vigorous nature of HIIT ensures you'll continue to torch even more calories for hours after your workout ends.

6. While there's no such thing as a fitness miracle, HIIT workouts come pretty darn close.

7. Have you ever heard of HIIT? If yes keep reading.

8. To warm up, perform 5 minutes of moderate cardio (such as jogging, jumping rope, or cycling).

9. Complete 3 rounds of circuit 1, then rest for 30 seconds to 1 minute.

10. Then complete 3 rounds of circuit 2, followed by a cool-down stretch—and you're done.

11. If no, well it gets you an awesome upper-body, so again keep reading.

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