Abstract：
BACKGROUND: Females with acetabular dysplasia and/or labral tears (hip pain) exhibit altered walking kinematics, with studies reporting mixed results in sagittal and frontal planes compared to pain-free controls, often conducting only discrete analyses and warranting further investigation. The objective of this study was to investigate discrete and continuous hip and pelvic kinematics between females with and without hip pain in two walking conditions.
METHODS: We collected kinematic walking data from 69 females (35 with hip pain, 34 controls) using motion capture and an instrumented treadmill in two conditions: preferred and fast (125% preferred). We used a general linear model and one-dimensional statistical parametric mapping to conduct discrete and continuous analyses comparing kinematics between groups, with and without adjustment for gait speed.
RESULTS: The hip pain group walked with reduced peak hip extension (Preferred: P = .046, Cohen\'s d = 0.41; Fast: P = .028, d = 0.48) and greater peak anterior pelvic tilt (Preferred: P = .011, d = 0.57; Fast: P = .012, d = 0.58) compared to controls. From continuous analyses, the hip pain group walked with reduced hip extension during terminal stance (Fast: P = .040), greater anterior pelvic tilt throughout (Preferred: P = .007; Fast: P = .004), and greater contralateral pelvic drop (Preferred: P = .045) during midstance. Adjusting for speed slightly affected p-values, but significance was retained for all prior variables except pelvic drop.
CONCLUSIONS: Kinematic differences between individuals with and without hip pain may provide insight into potential predisposing factors for hip pathology and/or compensations for pain or pathological processes. This work furthers understanding of altered movement patterns in individuals with hip pain and may inform physical therapy treatments.
METHODS: We collected kinematic walking data from 69 females (35 with hip pain, 34 controls) using motion capture and an instrumented treadmill in two conditions: preferred and fast (125% preferred). We used a general linear model and one-dimensional statistical parametric mapping to conduct discrete and continuous analyses comparing kinematics between groups, with and without adjustment for gait speed.
RESULTS: The hip pain group walked with reduced peak hip extension (Preferred: P = .046, Cohen\'s d = 0.41; Fast: P = .028, d = 0.48) and greater peak anterior pelvic tilt (Preferred: P = .011, d = 0.57; Fast: P = .012, d = 0.58) compared to controls. From continuous analyses, the hip pain group walked with reduced hip extension during terminal stance (Fast: P = .040), greater anterior pelvic tilt throughout (Preferred: P = .007; Fast: P = .004), and greater contralateral pelvic drop (Preferred: P = .045) during midstance. Adjusting for speed slightly affected p-values, but significance was retained for all prior variables except pelvic drop.
CONCLUSIONS: Kinematic differences between individuals with and without hip pain may provide insight into potential predisposing factors for hip pathology and/or compensations for pain or pathological processes. This work furthers understanding of altered movement patterns in individuals with hip pain and may inform physical therapy treatments.
摘要：
背景：髋臼发育不良和/或髋臼撕裂（髋部疼痛）的女性表现出行走运动学改变，与无痛对照组相比，研究报告矢状面和额面的混合结果，通常只进行离散分析，并保证进一步调查。这项研究的目的是研究在两种步行条件下，有和没有髋部疼痛的女性之间的离散和连续髋部和骨盆运动学。
方法：我们收集了69名女性的运动学步行数据（35名患有髋部疼痛，34个控件）在两种情况下使用运动捕捉和仪表式跑步机：首选和快速（首选125％）。我们使用一般的线性模型和一维统计参数映射进行离散和连续分析，比较组之间的运动学，有和没有调整步态速度。
结果：与对照组相比，髋部疼痛组步行时髋部伸展峰值降低（首选：P=.046，Cohen\'sd=0.41；快速：P=.028，d=0.48），骨盆前倾峰值更大（首选：P=.011，d=0.57；快速：P=.012，d=0.58）。从持续的分析中，髋部疼痛组行走时髋部伸展减少（快速：P=.040），整个骨盆前倾更大（首选：P=.007；快速：P=.004），中期对侧骨盆下垂较大（首选：P=.045）。调整速度轻微影响p值，但除骨盆跌落外,所有先前变量均保持显著性.
结论：有和没有髋部疼痛的个体之间的运动学差异可以提供对髋部病理的潜在诱发因素和/或疼痛或病理过程的代偿的见解。这项工作进一步加深了对髋部疼痛患者运动模式改变的理解，并可能为物理治疗提供依据。
方法：我们收集了69名女性的运动学步行数据（35名患有髋部疼痛，34个控件）在两种情况下使用运动捕捉和仪表式跑步机：首选和快速（首选125％）。我们使用一般的线性模型和一维统计参数映射进行离散和连续分析，比较组之间的运动学，有和没有调整步态速度。
结果：与对照组相比，髋部疼痛组步行时髋部伸展峰值降低（首选：P=.046，Cohen\'sd=0.41；快速：P=.028，d=0.48），骨盆前倾峰值更大（首选：P=.011，d=0.57；快速：P=.012，d=0.58）。从持续的分析中，髋部疼痛组行走时髋部伸展减少（快速：P=.040），整个骨盆前倾更大（首选：P=.007；快速：P=.004），中期对侧骨盆下垂较大（首选：P=.045）。调整速度轻微影响p值，但除骨盆跌落外,所有先前变量均保持显著性.
结论：有和没有髋部疼痛的个体之间的运动学差异可以提供对髋部病理的潜在诱发因素和/或疼痛或病理过程的代偿的见解。这项工作进一步加深了对髋部疼痛患者运动模式改变的理解，并可能为物理治疗提供依据。
