Garmin 910XT - Manual (Page 22)

20 Training with Your Forerunner
3 Select your pool length or enter a
custom length.
4 If necessary, select MODE > Settings
> Pool Swim Settings > Data Fields
to customize the swim training pages.
For a complete list of the available
data fields, see page 36 .
5 Select STArT.
6 If you stop to rest, select LAP, and
select LAP again when you resume
swimming.
This creates a rest interval separate
from your swim interval.
7 After completing your swim, select
STOP.
8 Hold rESET to save your data and
reset the timer.
Stroke Types
Stroke type identification is available only
in pool swim mode. Your stroke type is
identified at the end of a length.
Free Freestyle
Back Backstroke
Breast Breaststroke
Fly Butterfly
Mixed More than one stroke type in
an interval
Swim Terminology
• A length is one trip down the pool.
• An interval in swimming is like a lap in
running. You can break your swim into
swim intervals and rest intervals.
• A stroke is counted every time your
arm wearing the Forerunner completes
a full cycle.
• Your swolf score is the sum of the
time for one length and the number of
strokes for that length. For example,
30 seconds plus 15 strokes equals
a swolf score of 45. Swolf is a
measurement of swimming efficiency
and, like golf, a lower score is better.
• Your swim efficiency index is the sum
of the time and the number of strokes
that it takes to swim 25 meters. This
allows you to compare your swim
efficiency to another pool or an open
water workout. A lower swim efficiency
index is better.