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Clearing All Personal Records
1
Select Menu > My Stats > Records.
NOTE: This does not delete any saved activities.
2
Select a sport.
3
Select Clear All Records > Yes.
The records are deleted only for that sport.
Heart Rate Features
This manual is for the Forerunner 230 and 235 models. The
heart rate features described in this section apply to both
Forerunner models. You must have a heart rate monitor to use
these features.
Forerunner 230: This device is compatible with ANT+ heart rate
monitors.
Forerunner 235: This device has a wrist-based heart rate
monitor and is compatible with ANT+ heart rate monitors.
Setting Your Heart Rate Zones
The device uses your user profile information from the initial
setup to determine your default heart rate zones. You can
manually enter heart rate values and set the range for each
zone.
1
Select Menu > My Stats > User Profile > Heart Rate
Zones.
2
Select an option:
• Select Default to view and set up the default heart rate
values.
• Select Running or Cycling to set up custom heart rate
values for each sport or accept the default values.
3
Select Max. HR, and enter your maximum heart rate.
4
Select Resting HR, and enter your resting heart rate.
5
Select Zones > Based On.
6
Select an option:
• Select BPM to view and edit the zones in beats per
minute.
• Select %Max. HR to view and edit the zones as a
percentage of your maximum heart rate.
• Select %HRR to view and edit the zones as a percentage
of your heart rate reserve (maximum heart rate minus
resting heart rate).
7
Select a zone, and enter a value for each heart rate zone.
Letting the Device Set Your Heart Rate
Zones
The default settings allow the device to detect your maximum
heart rate and set your heart rate zones as a percentage of your
maximum heart rate.
• Verify that your user profile settings are accurate (Setting Up
Your User Profile, page 8).
• Run often with the wrist or chest heart rate monitor.
• Try a few heart rate training plans, available from your
Garmin Connect account.
• View your heart rate trends and time in zones using your
Garmin Connect account.
Physiological Measurements
These physiological measurements require wrist-based heart
rate or a compatible heart rate monitor. The measurements are
estimates that can help you track and understand your training
activities and race performances. These estimates are provided
and supported by Firstbeat.
NOTE: The estimates may seem inaccurate at first. The device
requires you to complete a few activities to learn about your
performance.
VO2 max.: VO2 max. is the maximum volume of oxygen (in
milliliters) you can consume per minute per kilogram of body
weight at your maximum performance.
Predicted race times: Your device uses the VO2 max. estimate
and published data sources to provide a target race time
based on your current state of fitness. This projection also
presumes you have completed the proper training for the
race.
Recovery advisor: The recovery advisor displays how much
time remains before you are fully recovered and ready for the
next hard workout.
About VO2 Max. Estimates
VO2 max. is the maximum volume of oxygen (in milliliters) you
can consume per minute per kilogram of body weight at your
maximum performance. In simple terms, VO2 max. is an
indication of athletic performance and should increase as your
level of fitness improves. The Forerunner device requires wrist-
based heart rate or a compatible chest heart rate monitor to
display your VO2 max. estimate.
Your VO2 max. estimate appears as a number and position on
the color gauge.
Purple Superior
Blue Excellent
Green Good
Orange Fair
Red Poor
VO2 max. data is provided by FirstBeat. VO2 max. analysis is
provided with permission from The Cooper Institute
®
. For more
information, see the appendix (VO2 Max. Standard Ratings,
page 13), and go to www.CooperInstitute.org.
Getting Your VO2 Max. Estimate for Running
This feature requires a heart rate monitor.
For the most accurate estimate, complete the user profile setup
(Setting Up Your User Profile, page 8), and set your
maximum heart rate (Setting Your Heart Rate Zones, page 4).
The estimate may seem inaccurate at first. The device requires
a few runs to learn about your running performance.
1
Run for at least 10 minutes outdoors.
2
After your run, select Save.
3
Select Menu > My Stats > VO2 Max..
Viewing Your Predicted Race Times
This feature requires a heart rate monitor.
For the most accurate estimate, complete the user profile setup
(Setting Up Your User Profile, page 8), and set your
maximum heart rate (Setting Your Heart Rate Zones, page 4).
Your device uses the VO2 max. estimate (About VO2 Max.
Estimates, page 4) and published data sources to provide a
target race time based on your current state of fitness. This
projection also presumes you have completed the proper
training for the race.
4 Heart Rate Features
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