Notes
Need to use manual setting on the treadmill from now on - the others are too annoying.
Started off (after fighting with the machine) slowly (slower than 5min/km pace) and then towards the end was up at 3:45/km pace.
Highest heart rate of all time but I felt I could have gone much harder - although have to be pleased with it as I hadn't run for a while due to a rib injury.