Garmin Forerunner 301 User Manual download pdf (Page 47)

Forerunner

301 Owner’s Manual 43

CUSTOMIZING > SETTING HEART RATE ZONES

Setting Heart Rate Zones

A heart rate zone is simply a certain range of beats per

minute. Heart rate zones are generally based on a percentage

of your maximum heart rate and are numbered from 1 to 5

based on intensity (1–lowest, 5–highest).

About AutoLearn™

For each sport, the Forerunner 301 contains a set of default

heart rate zones, which may not reﬂect your heart rate

zones accurately. Consequently, the Forerunner employs

an extremely valuable feature called AutoLearn, which can

automatically determine your heart rate zones over a period

of time and calculate your maximum heart rate.

Using AutoLearn

AutoLearn is turned on by default in Running mode, so the

Forerunner begins gathering data to calculate your heart rate

zones from your very ﬁrst workout—no setup or calibration

required.

When the Forerunner gathers enough data to calculate new

heart rate zones, a message appears on the Welcome screen

immediately after you turn it on. Thereafter, the Forerunner

continues to gather data and adjust your heart rate zones

to reﬂect your current ﬁtness level. If the zone changes are

large (3 bpm), a message appears when you turn on the

Forerunner; otherwise, you will receive no notiﬁcation.

Each time the Forerunner modiﬁes your

heart rate zones signiﬁcantly, a message

appears when you turn on the Forerunner.

Other things to know about AutoLearn:

• To calculate your heart rate zones using AutoLearn,

you must spend some time training above your

lactate threshold. See the Appendix for more

information.

• Calculating your heart rate zones may take one

workout or several, depending on the intensity of

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Garmin Forerunner 301 User Manual Page 47