Garmin D2 Mach 1 Owners Manual PDF - Page 100
VO2 Max. Standard Ratings
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Color Zone Percentile in Zone Cadence Range Ground Contact Time Range Orange 5-29 153-163 spm 278-308 ms Red 52.2% L 50.8-52.2% L 50.7% L-50.7% R 50.8-52.2% R >52.2% R 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. You can watch the gauge or data field during your run or view the summary on your Garmin Connect account after your run. As with the other running dynamics data, ground contact time balance is a quantitative measurement to help you learn about your running form. Vertical Oscillation and Vertical Ratio Data The data ranges for vertical oscillation and vertical ratio are slightly different depending on the sensor and whether it is positioned at the chest (HRM-Pro series, HRM-Run™, or HRM-Tri accessories) or at the waist (Running Dynamics Pod accessory). Color Zone Percentile in Zone Vertical Oscillation Range at Chest Vertical Oscillation Range at Waist Vertical Ratio at Vertical Ratio at Chest Waist Purple >95 Blue 70-95