biodex BioSway Operation Manual page 26

COMPUTER PRELIMINARIES
lImItS of StabIlIty (loS) traInInG routIne
(See Figure 6.3.)
Figure 6.3. The Limits of Stability (LOS) Training screen.
The Limits of Stability Training screen is designed to challenge the user to move through a
movement pattern consistent with the sway envelope. The sway envelope is that area a person
can move their COG within their base of support. It is approximated from vertical as 8 degrees
to one side, 8 degrees to the other (total of 16 degrees of sway,) and 8 degrees forward and 4
degrees back (12 degrees total). Limits of Stability training and testing are based on challenging
the patient within this sway envelope. Testing is usually done at 75% LOS, which is the moder-
ate skill level. Easy skill level is 50% and hard skill level is 100% of the sway envelop. Scoring
percentage-based and reflects the directional accuracy of the movement to the blinking targets
(see Appendix B-1) Time counts up during the LOS training.
loS training access and differences from other training modes
Access to the Limits of Stability Training mode is similar to Postural Stability Training with the
following differences:
1. Touch <Skill Level> to tighten or widen the spread between targets. Three skill levels are
available from which to choose. Touch <Skill Level> until the desired target configuration is
displayed.
2. If desired, touch <Clear Tracing> to remove any tracing that remains on the screen from a
previous exercise session.
3. Touch <More Options> to advance to the Limits of Stability Training Options screen if
desired. Here you can set the Limits of Stability Hold Time for the exercise, Scoring Tone
On/OFF and turn Tracing ON/OFF. Touch <OK> to confirm your selections and return to the
Limits of Stability screen, or<Cancel> to return to the Limits of Stability screen without mak-
ing changes.
• To set a Limits of Stability Hold Time, use the <
setting. Hold times range from .025 to 5 seconds.
• To turn tracing ON/OFF, touch <Tracing> to toggle between choices.
THE TRAINING MODES
> or < M > keys to scroll to the desired
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