Day 11 : HIIT Workout 2

Exercises 3
Equipment X

Perform the exercises as a circuit, completing one set of each in sequence. Rest 30 seconds between exercises, and repeat for five to eight circuits.

This body-weight circuit can be done anywhere without equipment, and your heart rate will climb as high as if you were using a state-of-the-art treadmill.

Exercise 1

Jumping Jack How to
21-Day Challenge Jumping Jack thumbnail
5 sets
30 reps
30 sec rest
*Perform 5-8 sets.

Exercise 2

Mountain Climber How to
21-Day Challenge Mountain Climber thumbnail
5 sets
20* reps
30 sec rest
*Each Leg. Perform 5-8 sets.

Exercise 3

Burpee How to
21-Day Challenge Burpee thumbnail
5 sets
10 reps
30 sec rest
*Perform 5-8 sets.
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