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Clin J Sport Med. 2009 Nov;19(6):471-5. doi: 10.1097/JSM.0b013e3181c12c7b.

The reliability of the modified Balance Error Scoring System.

Author information

1
School of Allied Medical Professions, The Ohio State University, Columbus, Ohio 43221, USA. tamerah.hunt@osumc.edu

Abstract

OBJECTIVE:

Study 1 investigated the intraclass reliability and percent variance associated with each component within the traditional Balance Error Scoring System (BESS) protocol. Study 2 investigated the reliability of subsequent modifications of the BESS.

DESIGN:

Prospective cross-sectional examination of the traditional and modified BESS protocols.

SETTING:

Schools participating in Georgia High School Athletics Association.

INTERVENTION:

The modified BESS consisted of 2 surfaces (firm and foam) and 2 stances (single-leg and tandem-leg stance) repeated for a total of three 20-second trials.

PARTICIPANTS:

Participants consisted of 2 independent samples of high school athletes aged 13 to 19 years.

MAIN OUTCOME MEASURES:

Percent variance for each condition of the BESS was obtained using GENOVA 3.1. An intraclass reliability coefficient and repeated measures analysis of variance were calculated using SPSS 13.0.

RESULTS:

Study 1 obtained an intraclass correlation coefficient (r = 0.60) with stance accounting for 55% of the total variance. Removing the double-leg stance increased the intraclass correlation coefficient (r = 0.71). Study 2 found a statistically significant difference between trials 1 and 2 (F(1.65,286) = 4.890, P = 0.013) and intraclass reliability coefficient of r = 0.88 for 3 trials of 4 conditions.

CONCLUSIONS:

The variance associated with the double-leg stance was very small, and when removed, the intraclass reliability coefficient of the BESS increased. Removal of the double-leg stance and addition of 3 trials of 4 conditions provided an easily administered, cost-effective, time-efficient tool that provides reliable objective information for clinicians to base clinical decisions upon.

PMID:
19898074
DOI:
10.1097/JSM.0b013e3181c12c7b
[Indexed for MEDLINE]

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