6
The configured cadence tempo can be changed directly from the device. With the device in
swim detection mode (blinking blue) and a cadence mode selected, press and hold either the up
or down side button for 3 seconds. After 3 seconds, the tempo will change - either increase or
decrease depending on which button is pressed. Keep pressing the button to continue
changing the tempo or release it and single click the buttons to go step by step. If no buttons
are pressed for 3 seconds, the side buttons will return to changing the mode (rather than the
cadence tempo). Note that the starting value for the tempo reverts to the value programmed for
the mode every time detection mode is entered or when the mode is changed to a different
mode.
Head Position
A lower head position helps elevate a swimmer
’s hips and feet, reducing drag and improving
efficiency which results in increased speed. Firebelly offers an optional Head Position feature
3
which gives immediate audio feedback on head position every two strokes or can be set to alert
swimmers when their head position exceeds a configurable threshold.
The head position readout is a measure of the angle of
the swimmer’s head vs the surface of
). The lower the head is kept, the lower the number will be.
Figure 4
Note that the number may vary from swim to swim depending on the orientation of the Firebelly
device on
the swimmer’s head. If the goggle strap is placed through the goggle strap slot on the
front of the device (versus under the cap), more consistent results can be obtained. We
suggest swimming to find a head position value that corresponds to a neutral head position for
that swimmer and that stroke. This number can then be used as a target to try to maintain as
the device reads out the head position number. Alternatively, the number can be used to set a
threshold as described next.
3
An additional feature license must be purchased to configure and use the head position feature on a Firebelly
device.
