Objectives: The purpose of this study was to evaluate the intrarater reliability of selected clinical outcome measures in patients having ACL reconstruction. Background: Several investigations have reported the reliability of isokinetic testing and knee ligament arthrometry. Fewer studies have examined the reliability of lower extremity functional tests, with most of these studies evaluating normal subjects. Methods and Measures: Fifteen physically active males with unilateral ACL-reconstructed knees were evaluated with the KT-1000, Biodex isokinetic dynamometer, and 3 functional hop tests on 5 occasions. Results: lntraclass correlation coefficients (ICCs) revealed good to high intrarater reliability (ICC >0.80) of the functional hop tests and isokinetic peak torque values. KG were higher for the involved limb than the uninvolved limb using the scores from the KT-1000 Manual Maximum Test. Conclusions: The outcome measures examined in this investigation have been shown to be reliable in patients with ACL reconstructions, and support previous investigations in nonimpaired populations. Further research is needed to examine the validity of these postoperative outcome measures in patients with ACL reconstructions. ) . . -Greater demands are being placed on sports physical therapists to improve the measurement and documentation of clinical outcomes following rehabilitation programs of injured athletes. Success is often determined by a return to the same or better level of functional performance than before the injury. The final phase in the management of an injured athlete requires the timely and safe transition from the rehabilitation environment to actual competition. Although physical characteristics such as range of motion, girth, isokinetic strength, and static ligamentous laxity tests provide useful information about an athlete's postinjury or postoperative Isokinetic testing, commonly used by sports medicine clinicians to assess strength and muscle performance, has been determined to be safe17 and reliableS.19.40.P9.S8.~~41~45~~52P58~74~~ with reported intraclass coefficients (ICCs) ranging from 0.72 to 0.99.Many functional tests have been reported to identi-Q, assess, and evaluate knee stability and function following ACL injury or reconstruction. Some of the more commonly used functional tests reported in the literature include the single-leg hop(s), figure 8 run, shuttle run, vertical jump, joint position reproduction, and a crossover cutting maneu~er.~J~v~~.~2. M.75.76 These research investigations provided useful information regarding assessment following ACL injury or reconstruction, but the investigators declined to report on the reliability of the functional tests examined. A recent investigation by Risberg and Ekeland62 examined 6 functional tests performed by patients after ACL reconstruction, but did not report on the tests' reliability. Lephart et a14S.M suggested that the best assessment of functional capacity in athletes with ACL insufficiency is achieved through the use of 3 "functional perfor...
RESULTS:During the prone upper extremity lifting task with a hand weight, there was a significant P = .03) and at L5-S1 (P = .04), and during volitional activation for the TrA (P .01). Post hoc testing revealed the rection specific and stabilization categories at the L4-L5 level, between control and direction specific category for the L5-S1 level, and between controls and all 3 categories for the TrA.
CONCLUSION:Deficits in the ability to generate muscle thickness changes in the TrA and LM occurred across categories of the TBC system. Intervention studies should be performed to determine if intervention can correct these deficits and if deficit corrections are related to outcomes.
Context:The Trendelenburg and single-leg-squat (SLS) tests are purported measures of hip-abduction strength that have not been previously validated.Objective:To correlate isometric hip-abduction strength to frontal-plane hip motion during an SLS and determine the criterion validity of a clinical-observation-analysis method to grade an SLS against 2-dimensional kinematic analysis.Design:Single-measure, concurrent validity.Setting:Biodynamics research laboratory.Participants:50 uninjured participants.Main Outcome Measures:Hip-abduction strength and hip and knee kinematic data during a Trendelenburg test and an SLS.Results:A weak, positive correlation between hip-abduction strength and hip-adduction angle was found during both the Trendelenburg (r= .22,P= .13) and the SLS (r= .21,P= .14) tests. The observation-analysis method revealed a low sensitivity, .23, and a higher specificity, .86, when compared with the kinematic data.Conclusion:The usefulness of the Trendelenburg and SLS test in screening hip-abductor strength in a healthy physically active population is limited. The origin of observable deficits during SLS requires further objective assessment.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.