Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 11-13, 41390, Gothenburg, Sweden.
Department of Orthopaedics, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Knee Surg Sports Traumatol Arthrosc. 2022 Nov;30(11):3898-3906. doi: 10.1007/s00167-022-06987-4. Epub 2022 May 20.
To determine the relationships among calf muscle function, tendon length and gait biomechanics in patients surgically treated for chronic Achilles tendon rupture.
Twenty-one patients with chronic Achilles tendon rupture (mean age 62 ± 13 years) were evaluated by heel-rise endurance test, Achilles Tendon Resting Angle (ATRA), ultrasound measurement of tendon length and three-dimensional gait analysis. A bivariate two-sided correlation test was performed on all variables in all patients.
Better performance across all parameters of the heel-rise endurance test correlated with faster walking speed (r = 0.52-0.55), greater peak ankle power (r = 0.56-0.64), shorter stance phase (r = -0.52 to -0.76) and less peak ankle dorsiflexion angle (r = -0.49 to -0.64) during gait. Greater ATRA correlated with longer stance time (r = 0.47), greater peak ankle dorsiflexion angle (r = 0.48), less heel-rise repetitions (r = -0.52) and less heel-rise total work LSI (r = -0.44 to -0.59).
Greater calf muscle endurance, especially heel-rise total work, is moderately correlated (r = 0.49-0.76) to better ankle biomechanics during gait in patients surgically treated for CATR. The heel-rise endurance test may be a clinical proxy for power development in the ankle joint during gait.
IV.
确定接受慢性跟腱断裂手术治疗的患者中，小腿肌肉功能、跟腱长度与步态生物力学之间的关系。
对 21 例慢性跟腱断裂患者（平均年龄 62±13 岁）进行跟腱蹬起耐力测试、跟腱静息角度（ATRA）、跟腱长度超声测量和三维步态分析。对所有患者的所有变量进行双变量双侧相关检验。
跟腱蹬起耐力测试的所有参数表现较好与步行速度更快（r=0.52-0.55）、踝关节峰值功率更大（r=0.56-0.64）、支撑相更短（r=-0.52 至-0.76）和踝关节背屈峰值角度更小（r=-0.49 至-0.64）相关。更大的 ATRA 与支撑相时间更长（r=0.47）、踝关节背屈峰值角度更大（r=0.48）、跟腱蹬起重复次数更少（r=-0.52）和跟腱蹬起总功 LSIs 更小（r=-0.44 至-0.59）相关。
接受慢性跟腱断裂手术治疗的患者中，更大的小腿肌肉耐力，尤其是跟腱蹬起总功，与步态中更好的踝关节生物力学中度相关（r=0.49-0.76）。跟腱蹬起耐力测试可能是步态中踝关节力量发展的临床替代指标。
IV 级。
