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首页> 外文期刊>Journal of stroke and cerebrovascular diseases: The official journal of National Stroke Association >Residual Deficits of Knee Flexors and Plantar Flexors Predict Normalized Walking Performance in Patients with Poststroke Hemiplegia
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Residual Deficits of Knee Flexors and Plantar Flexors Predict Normalized Walking Performance in Patients with Poststroke Hemiplegia

机译：膝关节屈肌的剩余缺陷和跖屈的缺陷预测失败偏瘫患者的正常步行性能

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Objectives: The aim of the study was to investigate the relation of lower limb muscle strength with normalized walking value, gait speed, and balance in patients with poststroke hemiplegia. Methods: Functional ambulatory unilateral hemiplegic patients were included in the study. Functionality of the lower limb was tested by Fugl-Meyer lower extremity motor subscale. Six-minute walk test (6MWT), 10-meter walk test, and Berg Balance Scale were performed to evaluate functional walking capacity, gait speed, and balance, respectively. Normalized 6MWT value was calculated by using a formula. Maximum isometric strengths of 8 muscle groups of both limbs were measured using a handheld dynamometry and residual deficits of the paretic side muscles were calculated. Results: The study population was comprised of 61 hemiplegic patients (mean age: 54.6 +/- 11.7 years and mean duration after stroke: 23.4 +/- 18.1 months). Mean normalized walking distance on 6MWT was 44.4% of expected. The residual deficits of the affected lower extremity muscles were negatively correlated with normalized 6MWT: hip flexors (r = -.651), hip extensors (r = -.621), hip abductors (r = -.657), hip adductors (r = -.630), knee flexors (r = -.738), knee extensors (r = -.659), ankle dorsiflexors (r = -.776), and ankle plantar flexors (r = -.773). Lower extremity residual deficits also showed moderate-strong negative correlations with Berg Balance Scores and gait speed. Multiple linear regression analyses showed that the residual deficits of the ankle plantar flexors and knee flexors are the major independent determinants of normalized 6MWT results (R .791 R-2 : 625). Conclusions: Residual deficits of lower extremity muscles-particularly of ankle dorsiflexors, plantar flexors, and knee flexors-are related to walking performance, gait speed and balance. Besides, knee flexors and plantar flexors are predictors of normalized 6MWT.
机译：目的：研究中风后偏瘫患者下肢肌力与标准步行值、步态速度和平衡的关系。方法：研究对象为功能性单侧偏瘫患者。下肢功能测试采用Fugl-Meyer下肢运动量表。进行6分钟步行测试（6MWT）、10米步行测试和Berg平衡量表，分别评估功能步行能力、步态速度和平衡。使用公式计算标准化6MWT值。使用手持式测力仪测量了8组四肢肌肉的最大等长肌力，并计算了麻痹侧肌肉的残余缺陷。结果：研究人群包括61名偏瘫患者（平均年龄：54.6+/-11.7岁，卒中后平均持续时间：23.4+/-18.1个月）。6MWT的平均标准化步行距离为预期的44.4%。受影响下肢肌肉的残余缺陷与标准化6MWT呈负相关：髋屈肌（r=-.651）、髋伸肌（r=-.621）、髋外展肌（r=-.657）、髋内收肌（r=-.630）、膝屈肌（r=-.738）、膝伸肌（r=-.659）、踝背屈肌（r=-.776）和踝跖屈肌（r=-.773）。下肢残余缺陷也与Berg平衡评分和步速呈中度强负相关。多元线性回归分析表明，踝跖屈肌和膝屈肌的残余缺陷是标准化6MWT结果的主要独立决定因素（R.791 R-2:625）。结论：下肢肌肉，尤其是踝关节背屈肌、跖屈肌和膝屈肌的残余缺陷与步行性能、步态速度和平衡有关。此外，膝屈肌和足底屈肌是标准化6MWT的预测因子。

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