Vertical Oscillation (VO)
Vertical Oscillation (VO) is the distance of the vertical bounce of your body when running.
In general, it’s beneficial to have a lower VO, this way you will waste less energy propelling your body up and down and run more efficiently on the horizontal plane.
Recording and monitoring VO requires special equipment, such as the Garmin HRM-Run heart rate monitor or the Garmin RD Pod (when used with a compatible watch, like the Forerunner 935), or the Stryd footpod.
Find it in SportTracks
In workouts that included VO-capable equipment, it can be added as an overlay metric on the chart in the Workout Detail page: