POLAR S720i - Manual (Page 61)

C 59
Cool-down phase
1. First
Preset heart rate limits 3 (if set on).
2. Then
Countdown timer 3.
Heart rate information.
Countdown timer starts running if you have set the timer 3
on. If you have set the timer off press and hold OK to end a
phase.
3. At the end of cool-down phase
Cool-down phase duration.
Average heart rate of the cool-down phase.
After your cool-down phase has ended the receiver
automatically continues recording exercise with BasicUse
mode.
You can continue using the heart rate limits of the interval
exercise in the BasicUse mode, too. Or, if you want to do
another interval training exercise, press and hold the OK
button.