Gorgey Ashraf S, Khalil Refka E
Spinal Cord Injury and Disorders Center, Hunter Holmes McGuire VAMC , Richmond, Virginia ; Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University , Richmond, Virginia.
Spinal Cord Injury and Disorders Center, Hunter Holmes McGuire VAMC , Richmond, Virginia.
Top Spinal Cord Inj Rehabil. 2015 Winter;21(1):87-92. doi: 10.1310/sci2101-87.
To determine the effects of 12 weeks of neuromuscular electrical stimulation (NMES) training with ankle weights on intermuscular fascial length and patellar tendon cross-sectional area (CSA) in persons with spinal cord injury (SCI).
This study was a pre-post intervention. Seven men with motor complete SCI were randomly assigned to a resistance training plus diet (RT + diet) group (n = 4) or a diet control group (n = 3). Participants in the RT + diet group were enrolled in a 12-week leg extension weight-lifting program via surface NMES of the knee extensor muscle group. The length of mid-thigh intermuscular fascia and the patellar tendon CSA were measured using MRI.
In the RT + diet group, a nonsignificant 8% increase in the CSA of the patellar tendon (P = .14) was noted. The length of the mid-thigh intermuscular fascia increased by 19% and 23% in the right (P = .029) and left (P = .015) legs, respectively, with no changes in the diet control group. Positive relationships were noted between skeletal muscle CSAs of the whole thigh (r = 0.77, P = .041) and knee extensors (r = 0.76, P = .048) and intermuscular fascial length.
The preliminary results suggest that noncontractile connective tissue structures of the knee extensors respond differently to NMES training after SCI. Skeletal muscle hypertrophy is associated with an increase in the intermuscular fascial length.
确定脊髓损伤（SCI）患者进行为期12周的带踝部负重的神经肌肉电刺激（NMES）训练对肌间筋膜长度和髌腱横截面积（CSA）的影响。
本研究为干预前后对照研究。7名运动完全性SCI男性被随机分为阻力训练加饮食组（RT + 饮食组，n = 4）或饮食对照组（n = 3）。RT + 饮食组的参与者通过膝伸肌肌群的表面NMES参加为期12周的腿部伸展举重计划。使用MRI测量大腿中部肌间筋膜的长度和髌腱CSA。
在RT + 饮食组中，髌腱CSA有不显著的8%增加（P = 0.14）。大腿中部肌间筋膜长度在右侧（P = 0.029）和左侧（P = 0.015）腿部分别增加了19%和23%，而饮食对照组无变化。全大腿（r = 0.77，P = 0.041）和膝伸肌（r = 0.76，P = 0.048）的骨骼肌CSA与肌间筋膜长度之间存在正相关关系。
初步结果表明，SCI后膝伸肌的非收缩性结缔组织结构对NMES训练的反应不同。骨骼肌肥大与肌间筋膜长度增加有关。
