HIIT Workout Week 1

https://www.youtube.com/watch?v=cDR2z1AaQqQ&t=1s

HIIT Workout Week 2

https://www.youtube.com/watch?v=cY2oRorCaSg

HIIT Workout Week 3

https://www.youtube.com/watch?v=N1mZIileeUU

HIIT Workout Week 4

https://www.youtube.com/watch?v=rB9xICduEZI