circles will be enabled until reaching the centre of
the target ⑥.
The ability to turn-ON the whole target (the centre
⑥) will also depend on the Full-Scale (FS). The
lower the FS, the easier the exercise, and vice-
versa.
10.1 - Valid contraction
To be valid, the level of a contraction should remain
on the centre of the target ⑥6at least 60% of the
ACTION! time. At the end of the contraction phase, a
high-pitched sound is emitted, if the contraction was
valid, or a low-pitched tone when the contraction
was insufficient.
Willing to use the lineal bar-graph as visual
feedback, just touch the screen area .
Unlike the concentric circles target (CCT), the bar
-graph displays up to 40 lines ⑬, the 30th of which
is the Full-Scale (FS). Therefore, with a FS of 30 µV,
variations of 1 µV will be appreciated.
If the linear bar-graph ⑬6 is used as visual
feedback, a contraction is considered valid if it
remains beyond the 30th line ⑫66at least 60% of the
ACTION! time. To switch between the two types of
visual feedback ⑬ ⑭ touch the sensitive area ㉒.
10.2 - Pre-set parameters of the biofeedback
programme (BFB)
Full-Scale (FS): 20 µV (Editable by selecting among
20 values).
Contraction time (ACTION!): 8 sec. (editable from
1 to 20 sec.).
Rest time (RELAX): 8 sec. (editable from 1 to 20
sec.)
Type of visual feedback: 20 concentric circles
targets (editable to 40 lines bar-graph).
Audible feedback: 2 KHz sound with repetition rate
from 0.5 (corresponding to low contraction) to 20 Hz
(corresponding to a full scale contraction). Feedback
is normally Enabled (can be changed to Disabled).
10.3 - Reset of the biofeedback sensor
The EMG signal detected by the probe could be
influenced by several factors other than the perineal
contraction. The signal detected with probe into the
vagina and perineal muscles at rest, is often greater
than zero. This situation is highlighted by the
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