Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara,Turkey.
Special Rehabilitation Center, Ankara,Turkey.
J Sport Rehabil. 2022 Apr 23;31(7):876-884. doi: 10.1123/jsr.2021-0386. Print 2022 Sep 1.
Weight-bearing test (WBT) is a noninvasive quantitative test which has been used recently to determine loading capability of the individuals. The aim of this study was to strengthen the evidence for using the WBT test for measuring weight-bearing capacity of the upper-extremity with the specific objective of examining the internal and external responsiveness and concurrent validity of the test in patients with triangular fibrocartilage complex injury.
Single-group repeated measures.
Internal responsiveness was assessed using effect size statistics. The correlation coefficient was used to examine external responsiveness by testing 5 hypotheses regarding predefined correlations between the changes in the measurements. Concurrent validity was evaluated by analyzing correlations between the WBT and other measurements. Thirty-one patients with triangular fibrocartilage complex injury were included for the analysis of the concurrent validity. Eighteen patients who completed all measurements at baseline and at 3-month follow-up enrolled for the responsiveness analysis. Measurements included the WBT, pain intensity, grip strength, and upper extremity functional level.
The WBT test was able to detect statistically significant changes in weight-bearing capacity between baseline and follow-up (P = .0001). The effect size of the WBT was large. Three out of 5 hypotheses (60%) were confirmed, a good correlation was found between changes scores of the WBT and grip strength (r = .478; P < .05). There were significant correlations between the WBT and other measurements (r value range from -.401 to .742; P < .05). A higher correlation was found between the WBT and grip strength (r = .742; P = .0001).
The responsiveness and concurrent validity of the WBT test confirmed that it is able to measure change in weight-bearing capacity in patients with triangular fibrocartilage complex injury.
负重测试(WBT)是一种无创的定量测试,最近已被用于确定个体的承重能力。本研究的目的是为使用 WBT 测试来测量三角纤维软骨复合体损伤患者的上肢承重能力提供更多证据,具体目标是检查该测试的内部和外部反应性以及与测试的同时效性。
单组重复测量。
使用效应量统计数据评估内部反应性。通过检验关于测量变化之间的 5 个预设相关性的 5 个假设,使用相关系数来评估外部反应性。通过分析 WBT 与其他测量之间的相关性来评估同时效性。共有 31 例三角纤维软骨复合体损伤患者纳入同时效性分析,18 例患者完成了基线和 3 个月随访的所有测量,用于反应性分析。测量包括 WBT、疼痛强度、握力和上肢功能水平。
WBT 测试能够在基线和随访之间检测到承重能力的统计学显著变化(P=.0001)。WBT 的效应量较大。5 个假设中有 3 个(60%)得到证实,WBT 变化评分与握力之间存在良好的相关性(r=.478;P <.05)。WBT 与其他测量之间存在显著相关性(r 值范围从 -.401 到.742;P <.05)。WBT 与握力之间的相关性更高(r=.742;P =.0001)。
WBT 测试的反应性和同时效性证实,它能够测量三角纤维软骨复合体损伤患者的承重能力变化。