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A numerical study to determine the effect of strengthening and weakening of the transversus abdominis muscle on lumbar spine loads
Computer Methods in Biomechanics and Biomedical Engineering ( IF 1.6 ) Pub Date : 2020-07-27 , DOI: 10.1080/10255842.2020.1795840
Katarzyna Nowakowska-Lipiec 1 , Robert Michnik 1 , Paweł Linek 2 , Andrzej Myśliwiec 3 , Katarzyna Jochymczyk-Woźniak 1 , Marek Gzik 1
Affiliation  

Abstract This work aimed to determine the influence of strengthening or weakening of the transversus abdominis (TrA) muscle on loads in the lumbar spine using musculoskeletal modelling methods. The input kinematic data of two positions (a standing position and a position during a sitting-down task) were angles in the elbow joint (0°;4°), shoulder joint (0°;3°), hip joint (0°;75°) and knee joint (0°;69°) as well as the torso tilt angle (0°;32°). It was shown that a change in the TrA physiological cross section area (PCSA) has a crucial impact on lumbar spine loads (2xTrA PCSA causes a reduction in the force in joint L5–S1 by 11% for a standing position and by 25% for a sitting-down position) and value of intra-abdominal pressure.

中文翻译:

一项确定加强和削弱腹横肌对腰椎负荷影响的数值研究

摘要 这项工作旨在使用肌肉骨骼建模方法确定加强或削弱腹横肌 (TrA) 肌肉对腰椎负荷的影响。两个位置(站立位置和坐下任务中的位置)的输入运动学数据为肘关节(0°;4°)、肩关节(0°;3°)、髋关节(0°)的角度;75°) 和膝关节 (0°;69°) 以及躯干倾斜角 (0°;32°)。结果表明,TrA 生理横截面面积 (PCSA) 的变化对腰椎负荷具有至关重要的影响(2xTrA PCSA 导致 L5-S1 关节的力在站立时减少 11%,在站立时减少 25%坐姿)和腹内压值。
更新日期:2020-07-27
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