There are times when walking and/or running on the treadmill can be boring. Below is a 15 min HIIT routine that I like to do a couple times a week.

➡️15 min HIIT
✳️WARM UP – 2 min
2x 🔺4.0 spd 40 sec & 3.0 spd 20 sec
2x🔺4.5 spd 40 sec & 3.0 spd 20 sec
2x🔺5.0 spd 40 sec & 3.0 spd 20 sec
2x🔺5.5 spd 40 sec & 3.0 spd 20 sec
GO DOWN IN SPEED
1x🔺5.0 spd 40 sec & 3.0 spd 20 sec
1x 🔺4.0 spd 40 sec & 3.0 spd 20 sec
1x🔺4.5 spd 40 sec & 3.0 spd 20 sec
✳️COOL DOWN 2 min