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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.

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.

NOTE: The color gauge for ground contact time balance is different

Go to

www.garmin.com

for more information on running dynamics. For additional theories and interpretations of running dynamics

data, you can search reputable running publications and websites.

Color Zone Percentile in Zone Cadence Range Vertical Oscillation Range Vertical Ratio Ground Contact Time Range

Purple

>95

Blue

70–95

Green

30–69

Orange 5–29

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 >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 color 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.

Physiological Measurements

These physiological measurements require wrist-based heart

rate or a compatible heart rate monitor. The measurements are

estimates that can help you track and understand your training

activities and race performances. These estimates are provided

and supported by Firstbeat.

NOTE: The estimates may seem inaccurate at first. The device

requires you to complete a few activities to learn about your

performance.

VO2 max.: Cycling VO2 max. requires a chest heart rate

monitor. VO2 max. is the maximum volume of oxygen (in

milliliters) you can consume per minute per kilogram of body

weight at your maximum performance.

Predicted race times: Your device uses the VO2 max. estimate

and published data sources to provide a target race time

based on your current state of fitness. This projection also

presumes you have completed the proper training for the

race.

Recovery advisor: The recovery advisor displays how much

time remains before you are fully recovered and ready for the

next hard workout.

Stress score: Stress score requires a chest heart rate monitor.

Stress score measures your heart rate variability while

standing still for 3 minutes. It provides your overall stress

level. The scale is 1 to 100, and a lower score indicates a

lower stress level.

>183 spm

<6.4 cm

174–183 spm

6.4–8.1 cm

164–173 spm

8.2–9.7 cm

153–163 spm

9.8–11.5 cm

<153 spm

>11.5 cm

Red

Orange

Poor

Fair

Good

25%

40%

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.

(Ground Contact Time Balance Data, page

<6.1%

6.1–7.4%

7.5–8.6%

8.7–10.1%

>10.1%

Green

Orange

Fair

25%

Performance condition: Your performance condition is a real-

time assessment after 6 to 20 minutes of activity. It can be

added as a data field so you can view your performance

condition during the rest of your activity. It compares your

real-time condition to your average fitness level.

Lactate threshold: Lactate threshold requires a chest heart rate

monitor. Lactate threshold is the point where your muscles

start to rapidly fatigue. Your device measures your lactate

threshold level using heart rate data and pace.

About VO2 Max. Estimates

VO2 max. is the maximum volume of oxygen (in milliliters) you

can consume per minute per kilogram of body weight at your

maximum performance. In simple terms, VO2 max. is an

indication of athletic performance and should increase as your

level of fitness improves. You can use your Garmin device

paired with a compatible heart rate monitor to display your

running VO2 max. estimate.

Your VO2 max. estimate appears as a number and position on

the color gauge.

<218 ms

218–248 ms

249–277 ms

278–308 ms

>308 ms

Red

Poor

2).

Heart Rate Features