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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 16).
• 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.
Broadcasting Heart Rate Data to Garmin
®
Devices
You can broadcast your heart rate data from your Forerunner
device and view it on paired Garmin devices. For example, you
can broadcast your heart rate data to an Edge
®
device while
cycling, or to a VIRB action camera.
NOTE: Broadcasting heart rate data decreases battery life.
1
Select to view the heart rate widget.
2
Hold .
3
Select Broadcast Heart Rate.
The Forerunner device starts broadcasting your heart rate
data, and appears.
NOTE: You can view only the heart rate page while
broadcasting heart rate data.
4
Pair your Forerunner device with your Garmin ANT+
compatible device.
NOTE: The pairing instructions differ for each Garmin
compatible device. See your owner's manual.
TIP: To stop broadcasting your heart rate data, select any
key, and select Yes.
Running Dynamics
You can use your compatible Forerunner device paired with the
HRM-Run
™
accessory or other running dynamics accessory to
provide real-time feedback about your running form. If your
Forerunner device was packaged with the HRM-Run accessory,
the devices are already paired.
The running dynamics accessory has an accelerometer that
measures torso movement in order to calculate six running
metrics.
Cadence: Cadence is the number of steps per minute. It
displays the total steps (right and left combined).
Vertical oscillation: Vertical oscillation is your bounce while
running. It displays the vertical motion of your torso,
measured in centimeters.
Ground contact time: Ground contact time is the amount of
time in each step that you spend on the ground while
running. It is measured in milliseconds.
NOTE: Ground contact time and balance are not available
while walking.
Ground contact time balance: Ground contact time balance
displays the left/right balance of your ground contact time
while running. It displays a percentage. For example, 53.2
with an arrow pointing left or right.
Stride length: Stride length is the length of your stride from one
footfall to the next. It is measured in meters.
Vertical ratio: Vertical ratio is the ratio of vertical oscillation to
stride length. It displays a percentage. A lower number
typically indicates better running form.
Training with Running Dynamics
Before you can view running dynamics, you must put on the
HRM-Run accessory, HRM-Tri accessory, or Running Dynamics
Pod, and pair it with your device (Pairing ANT+ Sensors,
page 13).
If your Forerunner was packaged with the heart rate monitor, the
devices are already paired, and the Forerunner is set to display
running dynamics.
1
Select , and select a running activity.
2
Select .
3
Go for a run.
4
Scroll to the running dynamics screens to view your metrics.
5
If necessary, hold to edit how the running dynamics data
appears.
Color Gauges and Running Dynamics Data
The running dynamics screens display a color gauge for the primary metric. You can display cadence, vertical oscillation, ground
contact time, ground contact time balance, or vertical ratio as the primary metric. The color gauge shows you how your running
dynamics data compare to those of other runners. The color zones are based on percentiles.
Garmin has researched many runners of all different levels. The data values in the red or orange zones are typical for less
experienced or slower runners. The data values in the green, blue, or purple zones are typical for more experienced or faster
runners. More experienced runners tend to exhibit shorter ground contact times, lower vertical oscillation, lower vertical ratio, and
higher cadence than less experienced runners. However, taller runners typically have slightly slower cadences, longer strides, and
slightly higher vertical oscillation. Vertical ratio is your vertical oscillation divided by stride length. It is not correlated with height.
NOTE: The color gauge for ground contact time balance is different (Ground Contact Time Balance Data, page 6).
Go to www.garmin.com/runningdynamics for more information on running dynamics. For additional theories and interpretations of
running dynamics data, you can search reputable running publications and websites.
Heart Rate Features 5
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