By tracking the ground contact time (GCT) balance between your left and right foot, this metric measures the symmetry of your running. Your Garmin watch always displays it as the percentage greater than 50%, along with an arrow pointing left or right to show which foot stays on the ground longer. For most people, a more symmetrical running style is preferable. The colour gauges on Garmin watches and in the Garmin Connect app show how balanced you are compared to other runners. Many runners report that their GCT balance tends to move further away from 50/50 when running uphill or downhill, doing speed work or when they are tired. Some runners also notice that injuries are associated with a greater GCT imbalance.
