About Vo2 Max. Estimates - Garmin Forerunner 735XT Owner's Manual

formance 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 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. The
Forerunner device has separate VO2 max.
estimates for running and cycling. You can use
your Garmin device paired with a compatible
heart rate monitor and power meter to display
your cycling VO2 max. estimate. 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.
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735XT
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