Exercise of the Day - Interval Sprints

No gimmicks here, straight up sprint intervals:

Start with a 2 minute jogging warm up, walk for 1 minute, then:

30 second jog right into a 2 minute all out sprint (as fast as you can sustain for 2 mins)

1 minute walk

30 second jog right into a 1 min 45 sec all out sprint

1 minute walk

30 second jog right into a 1 min 30 sec all out sprint

1 minute walk

30 second jog right into a 1 min 15 sec all out sprint

1 minute walk

30 second jog right into a 1 min all out sprint

1 minute walk

30 second jog right into a 45 sec all out sprint

1 minute walk

30 second jog right into a 30 sec all out sprint

2 minute walk

3 minute walk

Yep this is my cardio for Friday, trying for the first time.