Faculty of Sports Sciences, University of Extremadura, Caceres, Spain.
Arch Phys Med Rehabil. 2013 Mar;94(3):444-50. doi: 10.1016/j.apmr.2012.08.198. Epub 2012 Aug 17.
To investigate the applicability and reliability of isokinetic strength measurements during concentric and eccentric actions of the shoulder muscles in fibromyalgia (FM) patients.
Test-retest reliability study.
University laboratory.
Women with FM (N=25) aged 37 to 69.
Not applicable.
Two isokinetic tests of the shoulder were repeated after an interval of 7 days. Each test involved 3 repetitions of abduction and adduction performed at a rate of 60°/s. The first test involved 2 concentric muscle actions (concentric/concentric test). The second test involved concentric abduction followed by eccentric adduction (concentric/eccentric test). Unilateral peak torque (Nm) and average work (J) were measured. Applicability was calculated as the proportion of participants who were able to complete every test. Reliability was analyzed by intraclass coefficient (ICC), standard error of measurement, and smallest real difference (SRD).
Applicability was 84% for the concentric/concentric test and 52% for the concentric/eccentric test. The main factor influencing applicability was age. In the concentric/eccentric test, measurement of peak torque showed high reliability for the abduction (ICC=.88; standard error of measurement=1.82; SRD=5.05) and adduction (ICC=.89; standard error of measurement=3.83; SRD=10.62) phases. In the concentric/concentric test, measurement of peak torque showed low reliability in the abduction phase (ICC=.29; standard error of measurement=6.45; SRD=17.87) and excellent reliability in the adduction phase (ICC=.92; standard error of measurement=5.95; SRD=16.50).
The applicability of shoulder isokinetic tests in FM patients who are women may be affected by age. In comparison, the concentric/concentric test was more applicable and less reliable than the concentric/eccentric test during abduction and adduction. These findings will facilitate the clinical interpretation of changes in isometric and isokinetic shoulder adduction and abduction tests in women with FM.
研究纤维肌痛（FM）患者肩部肌肉进行向心和离心等速力量测量的适用性和可靠性。
测试-再测试可靠性研究。
大学实验室。
年龄在 37 至 69 岁之间的 FM 女性患者（N=25）。
无。
两次肩部等速测试在 7 天间隔后重复进行。每个测试均涉及以 60°/s 的速度进行 3 次外展和内收重复运动。第一个测试包括 2 次向心肌肉运动（向心/向心测试）。第二个测试包括向心外展后进行离心内收（向心/离心测试）。测量单侧峰值扭矩（Nm）和平均功（J）。适用性计算为能够完成每项测试的参与者比例。可靠性通过组内相关系数（ICC）、测量误差和最小真实差异（SRD）进行分析。
向心/向心测试的适用性为 84%，向心/离心测试的适用性为 52%。影响适用性的主要因素是年龄。在向心/离心测试中，外展和内收阶段的峰值扭矩测量显示出较高的可靠性（ICC=.88；测量误差=1.82；SRD=5.05）。在向心/向心测试中，外展阶段的峰值扭矩测量显示出较低的可靠性（ICC=.29；测量误差=6.45；SRD=17.87），而内收阶段的峰值扭矩测量显示出极好的可靠性（ICC=.92；测量误差=5.95；SRD=16.50）。
女性 FM 患者肩部等速测试的适用性可能受年龄影响。相比之下，在进行外展和内收运动时，向心/向心测试比向心/离心测试更适用但可靠性更低。这些发现将有助于临床解释 FM 女性等长和等速肩部内收和外展测试中出现的变化。
