USING IN-TRIAL FEATURES
Once calibration is complete and a trial has started, there are several features that
are available. These include: Pause, Mark, Chart Mode, Biofeedback, and Change
trial settings.
●
Pause
: Pushing the Pause button (upper left corner of screen) turns the
motors off, stopping torque production. Torque can be resumed by
pressing the Play button.
●
Mark
: Pressing the mark button creates a marker in the session data. This
feature is helpful to denote events that occur during a trial (e.g., changing
speed, terrain). You can press the mark button as many times as needed
during a trial.
●
Chart Mode
: These buttons toggle the display from Torque Mode to State
Mode. Torque Mode displays the torque being produced. State Mode
displays whether the leg is in stance or swing.
●
Biofeedback
: Selecting biofeedback will open a new window where you
can set a biofeedback threshold (e.g., . percentage of body weight) that the
clinician wants the participant to achieve. This can be set individually for
the right and left leg. This can be helpful to encourage push-off during late
stance. Once a threshold has been set (e.g., 5%), each time the actual
torque exceeds that threshold, the app will sound (ding) and the screen
will change color briefly. In the biofeedback window there is also a retake
baseline button. If it seems difficult for the participant to exceed the
threshold, you can press retake baseline to ensure the baseline values are
appropriate. If it’s still difficult for the participant to exceed the threshold,
reducing the threshold value may be necessary.
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