Cervenka Jeffrey J, Decker Meredith N, Ruhde Logan A, Beaty Joshua D, Ricard Mark D
Department of Kinesiology, The University of Texas at Arlington, Arlington, TX, USA.
Int J Exerc Sci. 2018 Jun 1;11(1):817-826. doi: 10.70252/MUNO4563. eCollection 2018.
The anterior cruciate ligament (ACL) serves as a vital stabilizer for the human knee, yet it is one of the most injured ligaments in the body. Function of the knee is restored through reconstruction and physical therapy, but long term functional deficits persist in some individuals. To better understand the influence of post rehabilitation outcomes on dynamic balance performance, this study evaluated bilateral differences in strength and stability in 11 participants who have rehabilitated from an ACL reconstruction or repair. The Y-Balance Test and an isokinetic strength assessment using the Biodex dynamometer were used to measure dynamic knee stability and strength, respectively. No significant differences were found in the strength test measurements. However, side to side differences in Y-Balance Test composite score (-2.8±3.1%, p = 0.014), maximal anterior reach (-2.8±2.4 cm, p = 0.01), and posterolateral reach (-2.75±3.5 cm, p = 0.02) were found to be significantly impaired in participants' involved limbs compared to the uninvolved limbs.
前交叉韧带（ACL）是人体膝关节的重要稳定结构，但它也是身体中最易受伤的韧带之一。通过重建和物理治疗可恢复膝关节功能，但部分个体仍存在长期功能缺陷。为更好地了解康复后结果对动态平衡表现的影响，本研究评估了11名接受ACL重建或修复后康复的参与者的双侧力量和稳定性差异。分别使用Y平衡测试和Biodex测力计进行等速力量评估来测量动态膝关节稳定性和力量。在力量测试测量中未发现显著差异。然而，与未受累肢体相比，参与者受累肢体的Y平衡测试综合评分（-2.8±3.1%，p = 0.014）、最大前伸距离（-2.8±2.4 cm，p = 0.01）和后外侧伸展距离（-2.75±3.5 cm，p = 0.02）的左右差异被发现明显受损。
