I'm looking to create the following interval workout. 5 * 800 with 90 second recovery between. Rest for 3 mins and then repeat the 5 * 800 with 90 secs rest.
Run - 800.00 m - Heart Rate Zone 4 (Threshold)
Rest - 01:30 min:sec
Repeat 5 Times - result
Rest - 03:00 min:sec
Repeat 2 Times