Heart rate Zone Calculations
Zone
% of
Maximum
Heart rate
1
50–60%
2
60–70%
3
70–80%
4
80–90%
5
90–100%
Forerunner 610 Owner's Manual
Perceived Exertion
Relaxed, easy pace, rhythmic
breathing
Comfortable pace, slightly
deeper breathing, conversation
possible
Moderate pace, more difficult to
hold conversation
Fast pace and a bit
uncomfortable, breathing forceful
Sprinting pace, unsustainable
for long period of time, labored
breathing
ANT+ Sensors
Benefits
Beginning-level aerobic training,
reduces stress
Basic cardiovascular training,
good recovery pace
Improved aerobic capacity,
optimal cardiovascular training
Improved anaerobic capacity
and threshold, improved speed
Anaerobic and muscular
endurance, increased power
25