Activation of biceps femoris long head reduces tibiofemoral anterior shear force and tibial internal rotation torque in healthy subjects
| العنوان: | Activation of biceps femoris long head reduces tibiofemoral anterior shear force and tibial internal rotation torque in healthy subjects |
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| المؤلفون: | Nur Liyana Azmi, Anthony M. J. Bull, Ziyun Ding, Rui Xu |
| المساهمون: | Engineering & Physical Science Research Council (EPSRC), Wellcome Trust |
| المصدر: | PLoS ONE PLoS ONE, Vol 13, Iss 1, p e0190672 (2018) |
| بيانات النشر: | Public Library of Science, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Male, Models, Anatomic, Muscle Physiology, Anterior cruciate ligament reconstruction, Physiology, medicine.medical_treatment, Knees, lcsh:Medicine, Hamstring Muscles, 02 engineering and technology, Knee Joints, Biceps, 0302 clinical medicine, Medicine and Health Sciences, Biomechanics, lcsh:Science, Musculoskeletal System, Orthodontics, Multidisciplinary, Physics, Classical Mechanics, musculoskeletal system, Healthy Volunteers, medicine.anatomical_structure, Physical Sciences, Ligament, Legs, Female, Anatomy, Gait Analysis, Research Article, Optimization, Adult, General Science & Technology, Anterior cruciate ligament, 0206 medical engineering, Shear force, Surgical and Invasive Medical Procedures, Models, Biological, 03 medical and health sciences, Motion, Young Adult, Musculoskeletal System Procedures, MD Multidisciplinary, medicine, Functional electrical stimulation, Humans, Functional Electrical Stimulation, Anterior Cruciate Ligament Reconstruction, business.industry, Biological Locomotion, lcsh:R, Limbs (Anatomy), Hamstring Tendons, Biology and Life Sciences, 030229 sport sciences, 020601 biomedical engineering, Gait, Joints (Anatomy), Torque, Gait analysis, lcsh:Q, business, Musculoskeletal Mechanics, human activities, Mathematics |
| الوصف: | The anterior cruciate ligament (ACL) provides resistance to tibial internal rotation torque and anterior shear at the knee. ACL deficiency results in knee instability. Optimisation of muscle contraction through functional electrical stimulation (FES) offers the prospect of mitigating the destabilising effects of ACL deficiency. The hypothesis of this study is that activation of the biceps femoris long head (BFLH) reduces the tibial internal rotation torque and the anterior shear force at the knee. Gait data of twelve healthy subjects were measured with and without the application of FES and taken as inputs to a computational musculoskeletal model. The model was used to investigate the optimum levels of BFLH activation during FES gait in reducing the anterior shear force to zero. This study found that FES significantly reduced the tibial internal rotation torque at the knee during the stance phase of gait (p = 0.0322) and the computational musculoskeletal modelling revealed that a mean BFLH activation of 20.8% (±8.4%) could reduce the anterior shear force to zero. At the time frame when the anterior shear force was zero, the internal rotation torque was reduced by 0.023 ± 0.0167 Nm/BW, with a mean 188% reduction across subjects (p = 0.0002). In conclusion, activation of the BFLH is able to reduce the tibial internal rotation torque and the anterior shear force at the knee in healthy control subjects. This should be tested on ACL deficient subject to consider its effect in mitigating instability due to ligament deficiency. In future clinical practice, activating the BFLH may be used to protect ACL reconstructions during post-operative rehabilitation, assist with residual instabilities post reconstruction, and reduce the need for ACL reconstruction surgery in some cases. |
| اللغة: | English |
| تدمد: | 1932-6203 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::403cb866d485ae9e2f34866a20eb5877 http://europepmc.org/articles/PMC5755889 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....403cb866d485ae9e2f34866a20eb5877 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19326203 |
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