Instrumentation has been developed to detect rapidly the polarization of tryptophan fluorescence from single muscle fibers in rigor, relaxation, and contraction. The polarization parameter (P( perpendicular)) obtained by exiciting the muscle tryptophans with light polarized perpendicular to the long axis of the muscle fiber had a magnitude P( perpendicular) (relaxation) > P( perpendicular) (con...

Abstract Background Spontaneous Iliopsoas Tendon (IPT) rupture is a rare condition, with prevalence of 0.66%, occurring most commonly in athletes. Risk factors for non-athletic IPT include age, female gender and steroid use. Psoas haematomas are associated surgery, anticoagulation coagulopathies. Only handful case reports have psoas haematoma single antiplatelet We present the patient who devel...

Appendix is a blind ending tubular structure present at the convergence of three tenia coli base caecum. Most commonly presented to out-patient department with features appendicitis, but mucocele appendix secondary malignant etiology rare clinical finding, more than half patients are asymptomatic in their presentation. An accurate diagnosis and proper treatment protocols necessary for its manag...

The nerve originates from the L2/L3 segments and travels down, lateral to the psoas muscle. It crosses the iliacus muscle deep to the fascia and then passes through or under the lateral part of the inguinal ligament. It runs superficially and divides into anterior and posterior branches to innervate the lateral thigh. The course of the nerve can be variable. One study of cadaveric specimens fou...

The purpose of this study was to explore how origin-insertion length and lengthening velocity of hamstring and psoas muscle change as a result of crouch gait. The second purpose was to study the effect of changes in walking speed, in crouch, on muscle lengths and velocities. Eight healthy female subjects walked on a treadmill both normally and in crouch. In the crouch condition, subjects walked...

Introduction. Gemcitabine and cisplatin (GC) is a gold-standard first-line systemic chemotherapy for advanced urothelial carcinoma (UC). However, it may cause severe adverse effects such as renal toxicity, gastrointestinal toxicity, and neurotoxicity. Sarcopenia is the age-related loss of skeletal muscle mass. A correlation between sarcopenia and the oncological prognosis has been reported. In ...

BACKGROUND Understanding the magnitude and direction of joint forces generated by hip strengthening exercises is essential for appropriate prescription and modification of these exercises. The purpose of this study was to evaluate hip joint forces created across a range of hip flexion and extension angles during two hip strengthening exercises: prone hip extension and supine hip flexion. METH...

Effects of low pH (6.0, 6.5) were studied at three temperatures (5, 15, 25 degrees C) on the isometric force and stiffness of glycerinated muscle fibers dissected from soleus (type I) and psoas (type IIX) muscles of the Japanese white rabbit. It was observed that the maximum force and stiffness declined as pH decreased, the extent of which was diminished by an increase in temperature in both mu...

BACKGROUND Minimally invasive lateral approaches to the lumbar spine have been adopted to allow access to the intervertebral disc space while avoiding the complications associated with anterior or posterior approaches. This report describes a minimally invasive technique for lateral lumbar interbody fusion LLIF that allows direct intraoperative visualization of the psoas and surrounding neurova...

STUDY DESIGN In vivo analysis in swine model. OBJECTIVE The purpose of this study was to determine the accuracy of triggered EMG (t-EMG) and its reliability in lateral lumbar interbody fusions surgery. We also aim to document changes in psoas muscle produced during the approach. SUMMARY OF BACKGROUND DATA Lateral lumbar interbody fusions is preferred over direct anterior approach because of...