Verbrugghe Jonas, Agten Anouk, Eijnde Bert O, Vandenabeele Frank, De Baets Liesbet, Huybrechts Xavier, Timmermans Annick
Hasselt University, REVAL - Rehabilitation Research Center, BIOMED, Hasselt, Belgium.
Hasselt University, REVAL - Rehabilitation Research Center, BIOMED, Hasselt, Belgium.
Phys Ther Sport. 2019 Jul;38:1-7. doi: 10.1016/j.ptsp.2019.03.009. Epub 2019 Apr 3.
to assess intra/inter-operator reliability and agreement of maximum isometric abdominal and back muscle strength in a functional trunk and isolated lumbar protocol, using an isokinetic dynamometer, in healthy persons and persons with chronic nonspecific low back pain (CNSLBP).
Test-retest.
Participants performed two assessments consisting of two protocols on the Biodex 3 system, evaluating maximum isometric back and abdominal strength in a functional trunk and isolated lumbar position. During the first assessment, each protocol was executed twice, supported by different operators.
Healthy persons (n = 20) and persons with CNSLBP (n = 20).
Intraclass Correlation (ICC), Standard Error of Measurement (SEM and %SEM), and Minimal Detectable Change (MDC) of muscle strength outcomes and seat positioning characteristics were calculated.
Intra/inter reliability of muscle strength outcomes was excellent (ICC: 0.94-0.98), while seat positioning characteristics varied from low to high (ICC: 0-0.94). For muscle strength outcomes, %SEM ranged from 4.7 to 9.2% and MDC ranged from 14.3 to 29.8 Nm in trunk flexion and 39.1-68.5 Nm in trunk extension.
The Biodex 3 system can be used reliably to assess maximum isometric trunk muscle strength with the aforementioned protocols in healthy persons and persons with CNSLBP. All muscle strength outcomes showed comparable agreement (%SEM < 10%).
使用等速测力计，在功能性躯干和孤立腰椎方案中，评估健康人和慢性非特异性下腰痛（CNSLBP）患者腹部和背部最大等长肌肉力量的操作者内/间可靠性及一致性。
重测。
参与者在Biodex 3系统上进行两项评估，每项评估包含两个方案，评估功能性躯干和孤立腰椎位置下的背部和腹部最大等长力量。在首次评估中，每个方案由不同操作者支持执行两次。
健康人（n = 20）和CNSLBP患者（n = 20）。
计算肌肉力量结果和座椅定位特征的组内相关系数（ICC）、测量标准误差（SEM和%SEM）以及最小可检测变化（MDC）。
肌肉力量结果的操作者内/间可靠性极佳（ICC：0.94 - 0.98），而座椅定位特征从低到高不等（ICC：0 - 0.94）。对于肌肉力量结果，%SEM在躯干屈曲时为4.7%至9.2%，在躯干伸展时为39.1 - 68.5 Nm；MDC在躯干屈曲时为14.3至29.8 Nm，在躯干伸展时为39.1 - 68.5 Nm。
Biodex 3系统可可靠地用于按照上述方案评估健康人和CNSLBP患者的躯干最大等长肌肉力量。所有肌肉力量结果均显示出相当的一致性（%SEM < 10%）。
