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30 Forerunner 310XT Owner’s Manual
Settings
Data
Field
Description
HR–Lap
%HRR**
Average percentage
of heart rate reserve
(maximum heart rate
minus resting heart
rate) for the lap.
HR Graph
**
Line graph showing
your current heart rate
zone (1-5).
HR Zone
**
Current range of heart
rate (1–5). The default
zones are based on
your user prole,
maximum heart rate,
and resting heart rate.
Heading Current direction you
are traveling.
Laps Amount of laps
completed.
Pace * Current pace.
Pace–Avg
*
Average pace for the
run.
Data
Field
Description
Pace–Lap
*
Average pace in the
current lap.
Speed * Current speed.
Speed–
Avg *
Average speed for
the run.
Speed–
Nautical
Speed in Knots.
Speed–
Lap *
Average speed in the
current lap.
Power ** Current power output
in watts or % FTP.
Power-
Avg **
Average power output
for the duration of
your current ride.
Power-
Kilojoules
**
Total (cumulative)
amount of power
output in kilojoules.
Power-
Lap **
Average power output
in the current lap.