Garmin Forerunner 620 - Connecting to Your Smartphone

Running
Dynamics
You
can
use
your
compatible
Forerunner
paired
with
the
HRM-Run
rM
accessory
to
provide
real-time
feedback
about
your
running
form.
If
your
Forerunner
was
packaged
with
the
HRM-Run
accessory,
the
devices
are
already
paired.
The
HRM-Run
accessory
has
an
accelerometer
in
the
module
that
measures
torso
movement
in
order
to
calculate
three
running
metrics:
cadence,
vertical
oscillation,
and
ground
contact
time
.
For
more
information
about
running
dynamics,
see
your
owner's
manual.
NOTE:
The
HRM-Run
accessory
is
compatible
with
several
ANT+
rM
fitness
products
and
can
display
heart
rate
data
when
paired.
The
running
dynamics
features
are
available
only
on
certain
Garmin
Forerunner
devices.
Cadence:
Cadence
is
the
number
of
steps
per
minute.
It
displays
total
steps
(right
and
left
combined).
Vertical
oscillation:
Vertical
oscillation
is
your
bounce
while
running.
It
displays
the
vertical
motion
of
your
torso,
measured
in
centimeters
for
each
step.
Ground
contact
time:
Ground
contact
time
is
the
amount
of
time
in
each
step
that
you
spend
on
the
ground
while
running.
It
is
measured
in
milliseconds.
NOTE:
Ground
contact
time
is
not
available
while
walking.
About
V02
Max.
Estimates
You
can
use
your
Garmin
device
paired
with
the
heart
rate
monitor
to
display
your
V02
max.
estimate.
V02
max.
is
the
maximum
volume
of
oxygen
(in
mililiters)
you
can
consume
per
minute
per
kilogram
of
body
weight
at
your
maximum
performance.
In
simple
terms,
V02
max.
is
an
indication
of
athletic
performance
and
should
increase
as
12