Suggested Test Protocol For General Postural Stability Balance Testing - biodex BALANCE SYSTEM SD Operation & Service Manual

9. THE BALANCE REPORTS
SuGGESTED TEST PROTOCOL FOR GENERaL POSTuRaL STaBILITY
BaLaNCE TESTING
The test protocol most commonly used with the Biodex Balance System is a Dynamic Balance
test as follows:
Test Duration: 20 seconds
Stability Level: 8
Stance: Two Leg
Reliability studies have been done for this protocol. In addition, much of the research being pre-
sented is at these levels. Three or four trial repetitions should be performed prior to testing at
each level. Again, this is supported by research.
The patient's performance is noted as a stability index. The stability index represents the vari-
ance of platform displacement in degrees from level. A high number is indicative of a lot of
motion, which is indicative of the patient having trouble balancing. Differences between right
and left limbs can be noted.
Orthopedic problems many times present neuromuscular control problems. You will see this by
testing single leg involved and uninvolved. Balance training will improve their control.
Geriatric patients can also be tested for excessive sway. The direction of the sway is important
with regards to the predisposition of a falls direction. Falling to either side significantly increas-
es the chances of a hip fracture.1,2,3
References:
1. Cumming, Robert G., Klineburg, Robin J., "Fall Frequency and Characteristics and the Risk of
Hip Fractures." JAGS, 42:774-778, 1994
2. Nevitt, Michael C., Cummings, Steven R., Hudes, Estie, "Risk Factors for Injurious Falls: A
Prospective Study." Journal of Gerontology: Medical Sciences. 46:5, M164-170, 1991.
3. This information was presented in abstract form at the New England Chapter of the American
College of Sports Medicine Thursday October 1, 1998. It is titled Stability Performance
Assessment Among Subject of Disparate Balancing Abilities. J.A. Finn, M.M. Alvarez, R.E. Jett,
D.S. Axtell, D.D. Kemler, Exercise Science Department, Southern Connecticut State University,
New Haven, CT.
TESTING — 8-6 —