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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 an
HRM-Pro, HRM-Run, or HRM-Tri accessory, or the
Running Dynamics Pod, and pair it with your device
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.
Go to
www.garmin.com/performance-data/running/
interpretations of running dynamics data, you can search reputable running publications and websites.
Color Zone
>95
Purple
70–95
Blue
30–69
Green
5–29
Orange
<5
Red
Ground Contact Time Balance Data
Ground contact time balance measures your running symmetry and appears as a percentage of your total ground contact time.
For example, 51.3% with an arrow pointing left indicates the runner is spending more time on the ground when on the left
foot. If your data screen displays both numbers, for example 48–52, 48% is the left foot and 52% is the right foot.
Color Zone
Symmetry
Percent of Other Runners
Ground Contact Time Balance
While developing and testing running dynamics, the Garmin team found correlations between injuries and greater imbalances
with certain runners. For many runners, ground contact time balance tends to deviate further from 50–50 when running up or
down hills. Most running coaches agree that a symmetrical running form is good. Elite runners tend to have quick and balanced
strides.
18
for more information on running dynamics. For additional theories and
Percentile in Zone
Red
Orange
Poor
Fair
5%
25%
>52.2% L
50.8–52.2% L
(Pairing Your Wireless Sensors, page
1 Select START, and select a running activity.
2 Select START.
3 Go for a run.
4 Scroll to the running dynamics screens to view your
metrics.
5 If necessary, hold UP to edit how the running
dynamics data appears.
Cadence Range
>183 spm
174–183 spm
164–173 spm
153–163 spm
<153 spm
Green
Good
40%
50.7% L–50.7% R
37).
Ground Contact Time Range
<218 ms
218–248 ms
249–277 ms
278–308 ms
>308 ms
Orange
Red
Fair
Poor
25%
5%
50.8–52.2% R
>52.2% R
Heart Rate Features
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