Effect of Posterior Tibial Tendon Dysfunction on Unipedal Standing Balance Test
Effect of Posterior Tibial Tendon Dysfunction on Unipedal Standing Balance Test
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DOI:
10.1177/1071100714551020
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发表时间:
2015-01-01
影响因子:
2.7
通讯作者:
Noceti-DeWit, Lisa
中科院分区:
文献类型:
--
作者:
Kulig, Kornelia;Lee, Szu-Ping;Noceti-DeWit, Lisa
Background: Foot pain and diminished functional capacity are characteristics of tibialis posterior tendon dysfunction (TPTD). This study tested the hypotheses that women with TPTD would have impaired performance of a unipedal standing balance test (USBT) and that balance performance would be related to the number of single limb heel raises (SLHR).Methods: Thirty-nine middle-aged women, 19 with early stage TPTD (stage I and II), were instructed to perform 2 tasks; a USBT and repeated SLHR. Balance success was defined as a 10-second stance. For those who were successful, center of pressure (COP) data in anterior-posterior (AP) and medial-lateral (ML) directions were recorded as a measure of postural sway. SLHR performance was divided into 3 bins ( 10 repetitions). The between-balance success on performing the SLHR test was analyzed using the Fisher's exact test (2 x 3). Independent t tests were used to compare between-group differences in postural sway. Relationship of postural sway to the number of heel raises was assessed using Spearman's rho.Results: The success rate of the USBT was significantly lower in women with TPTD than the controls (47% vs 85%, P = .041). In addition, women with TPTD who completed the USBT exhibited increased AP COP displacement (14.0 +/- 7.4 vs 8.4 +/- 1.3 mm, P = .008), and a strong trend of increased ML COP displacement (8.3 +/- 4.5 vs 6.1 +/- 1.2 mm, P = .050). The success rate of USBT was correlated with the number of SLHR (P = .01). The AP and ML COP displacement were correlated with SLHR (r = -.538 and .495), respectively.Conclusions: Women with TPTD have difficulty in performing the USBT. Performance of the USBT and SLHR are highly correlated and predictive of each other.