User Manual

99Forerunner
®
735XT
EN
ve commonly accepted heart rate zones are
numbered from 1 to 5 according to increasing
intensity. Generally, heart rate zones are calcu-
lated based on percentages of your maximum
heart rate.
Heart Rate Zone Calculations
Zone
%of
Maxi-
mum
Heart
Rate
Perceived
Exertion
Benets
1 50-
60%
Relaxed, easy
pace, rhythmic
breathing
Beginning-lev-
el aerobic
training,
reduces stress
2 60-
70%
Comforta-
ble pace,
slightly deeper
breathing,
conversation
possible
Basic
cardiovascular
training, good
recovery pace
3 70-
80%
Moderate
pace, more
difcult to hold
conversation
Improved
aerobic ca-
pacity, optimal
cardiovascular
training
4 80-
90%
Fast pace
and a bit
uncomforta-
ble, breathing
forceful
Improved
anaerobic
capacity and
threshold,
improved
speed