The Limits Of Stability (Los) Test - biodex BALANCE SYSTEM SD Operation & Service Manual

CONTENTS
THE LIMITS OF STaBLITIY (LOS) TEST
This test challenges patients to move and control their center of gravity within their base of sup-
port. During each test trial, patients must shift their weight to move the cursor from the center
target to a blinking target and back as quickly and with as little deviation as possible. The same
process is repeated for each of nine targets. Targets on the screen blink in random order. Three
skill levels allow the targets to be grouped closer together or spread further apart. If desired, sin-
gle leg LOS test may be performed but no bilateral comparison is provided.
This test is a good indicator of dynamic control within a normalized sway envelope. Poor con-
trol, inconsistencies or increased times suggests further assessment for lower extremity strength,
proprioception, vestibular or visual deficiencies may be indicated. The default setting for the
LOS test is 75% LOS (moderate still level).
References:
1. Clark S, Rose DJ, Fujimoto K. Generalizability of the Limits of Stability Test in The Evaluation
of Dynamic Balance Among Older Adults. Arch Phys Med Rehabilitation, Vol 78, Oct 1997.
Figure 8.6. The Limits of Stability Testing screen.
Figure 8.7. The Limits of Stability Testing Options screen.
— 8-7 — TESTING