Gregory Amanda B, Nguyen Anh-Dung, Taylor Jeffrey B, Ford Kevin R
Department of Exercise Science, Congdon School of Health Sciences, High Point University, High Point, North Carolina, USA.
Division of Athletic Training, School of Medicine, West Virginia University, Morgantown, West Virginia, USA.
Int J Sports Phys Ther. 2020 Dec;15(6):920-927. doi: 10.26603/ijspt20200920.
The single leg triple hop (SLTH) test is often utilized by rehabilitation practitioners as a functional performance measure in a variety of patient groups. Accuracy and consistency are important when measuring the patient progress and recovery. Administering the SLTH test on different surfaces, consistent with the patient's sport, may affect the hop distances and movement biomechanics.
The purpose of this study was to examine the effects of court and turf surfaces on the hop distance, limb symmetry index (LSI), and lower extremity kinematics of a SLTH test.
Recreationally active female participants (n=11, height 163.8 ± 7.1cm, mass 63.1 ± 7.1kg, age 18.9 ± 0.9yrs), without injury, volunteered to participate in the study. Three maximal effort SLTH test trials on two different surfaces (court, synthetic turf) were collected and analyzed using 3D motion analysis techniques. Outcome variables included SLTH test distances and LSI values and sagittal plane kinematics including trunk, hip, knee and ankle range of motion (ROM) during the last two landings of each SLTH test trial. The second landing involves an absorption phase and propulsion phase in contrast to the final landing which involves absorption and final balance on the single leg. Paired t-tests were used to determine differences between surfaces in hop distance and LSI values. Two-way repeated measures ANOVA were used to determine differences between surfaces in kinematic variables.
The total SLTH test distance was not statistically different between the court (4.11 ± 0.47m) and turf (4.03 ± 0.42m, p=0.47) surfaces. LSI for the court surface was 100.8 ± 3.0% compared to 99.7 ± 3.0% for turf surface, which was not statistically different (p=0.30). Knee flexion ROM was significantly less (p=0.04) on the turf compared to the court surface during the second landing. Ankle flexion range of motion was also significantly less (p=0.03) during the second landing on turf compared to court.
Type of surface influenced landing kinematics but not total SLTH test distance. When evaluating the quality of landings during a SLTH test, it may be warranted to observe each type of landing and the type of surface used during single leg tests.
单腿三级跳（SLTH）测试常被康复治疗师用作多种患者群体功能表现的衡量指标。在衡量患者的进展和恢复情况时，准确性和一致性很重要。在与患者所从事运动相匹配的不同表面上进行SLTH测试，可能会影响跳跃距离和运动生物力学。
本研究旨在探讨场地地面和人造草皮表面对SLTH测试的跳跃距离、肢体对称指数（LSI）和下肢运动学的影响。
无损伤的、有运动习惯的女性参与者（n = 11，身高163.8±7.1厘米，体重63.1±7.1千克，年龄18.9±0.9岁）自愿参加本研究。使用3D运动分析技术收集并分析了在两种不同表面（场地地面、人造草皮）上进行的三次最大努力的SLTH测试试验。结果变量包括SLTH测试距离和LSI值，以及矢状面运动学指标，即每次SLTH测试试验最后两次着地时的躯干、髋、膝和踝关节活动范围（ROM）。第二次着地包括缓冲阶段和蹬伸阶段，而最后一次着地包括单腿缓冲和最终平衡。配对t检验用于确定不同表面在跳跃距离和LSI值上的差异。双向重复测量方差分析用于确定不同表面在运动学变量上的差异。
场地地面（4.11±0.47米）和人造草皮表面（4.03±0.42米，p = 0.47）的SLTH测试总距离在统计学上无差异。场地地面的LSI为100.8±3.0%，人造草皮表面为99.7±3.0%，差异无统计学意义（p = 0.30）。在第二次着地时，人造草皮表面的膝关节屈曲ROM显著小于场地地面（p = 0.04）。在人造草皮表面第二次着地时的踝关节屈曲活动范围也显著小于场地地面（p = 0.03）。
表面类型影响着地运动学，但不影响SLTH测试总距离。在评估SLTH测试期间的着地质量时，可能有必要观察每次着地的类型以及单腿测试时使用的表面类型。
2级。
