Running Dynamics
Running dynamics is real-time feedback about your running form. Your D2™ Air X15 watch has an accelerometer to calculate five running form metrics. To view all of the running form metrics, you must pair your D2 Air X15 watch with the HRM 600, HRM-Fit™, HRM-Pro™ series accessory, or other running dynamics accessory that measures torso movement. For more information, go to garmin.com/performance-data/running.
|
Metric |
Sensor Type |
Description |
|---|---|---|
|
Cadence |
Watch or compatible accessory |
Cadence is the number of steps per minute. It displays the total steps (right and left combined). |
|
Stride length |
Watch or compatible accessory |
Stride length is the length of your stride from one footfall to the next. It is measured in meters. |
|
Vertical oscillation |
Watch or compatible accessory |
Vertical oscillation is your bounce while running. It displays the vertical motion of your torso, measured in centimeters. |
|
Vertical ratio |
Watch or compatible accessory |
Vertical ratio is the ratio of vertical oscillation to stride length. It displays a percentage. A lower number typically indicates better running form. |
|
Ground contact time |
Watch or compatible accessory |
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 metrics are not available while walking.
|
|
Ground contact time balance |
Compatible accessory only |
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. |