MTR+ SineBravo - Threshold; Setting of Threshold before Start of Treatment; Automatic Adjustment of Threshold During Treatment

SineBravo Operators Manual
21
The threshold is a target value that shall be achieved by personal eort. It is measured in
microvolts and displayed for both channels in the middle line of the screen. The arrows in the
middle of the bargraph on the left and right side of the display represent the thresholds.
Since all biofeedback-programs refer to a threshold, it is necessary to set this threshold at the
beginning of each program.
Setting of threshold before start of treatment
By default, the threshold is determined automatically when START is pressed.
Pressing the START button causes the appearance of the open hand in the display, while the
time-indicator for this rest-period runs to 0. At 0, the display switches to the symbol of the st
and the time for this 5-second period of work runs to zero again. In this short work period,
you should try to contract the muscle with the maximum possible eort. Subsequently a rest
period follows and a further work-period. During these two initial work/rest trials for threshold-
detection the word TEST is indicated in the infoline. The threshold is calculated automatically
after the second phase of work, and is set at 80% of the average value of the period with higher
performance. Please note that the rst second of each work-phase is not relevant for the average
value.
Now the treatment begins with the threshold set and the total time counts down in the infoline.
Alternatively, the automatic setting can be skipped. This is achieved by holding the START
button pressed for about 3 seconds. In this case, the threshold of the last treatment appears and
could be altered manually by pressing the +/- buttons before starting the program.
Automatic adjustment of threshold during treatment
Once the threshold is set, it will stay the same for the entire duration of the treatment until you
make a new setting - except if you have selected “automatic threshold adjustment.” In this case,
the threshold would be adjusted during the treatment according to your performance. The new
threshold will be set to 80% of the average work that have been done in the last trial before.
Threshold