OBJECTIVES Sonography of muscle architecture provides physicians and researchers with information about muscle function and muscle-related disorders. Inter-rater reliability is a crucial parameter in daily clinical routines. The aim of this study was to assess the inter-rater reliability of sonographic muscle architecture assessments and quantification of errors that arise from inconsistent pro...

Introduction: Effect of tripolar TENS of vertebral column on slow and fast motoneurons (MNs) activity of soleus muscle was previously investigated. In this study for better differentiation of the behavior of slow and fast MNs, we exploited H-reflex recovery curve recording in two muscles of soleus and lateral gastrocnemius, respectively as the representatives of slow and fast muscles. Meth...

Tenotomy of the rat gastrocnemius muscle is commonly employed as a model of accelerated protein breakdown or as a system in which to follow the hypertrophy of the ipsilateral plantaris or soleus muscles [l]. We have studied changes in the activities of cathepsins B and L in rat gastrocnemius muscle over the period following tenotomy when the muscle atrophies. Individually caged rats (160 g) wer...

Background Exertional leg pain and Achilles enthesitis are two musculoskleletal manifestations which have been described in familial Mediterranean fever (FMF) patients. Muscle performance is related both with mass architecture. Measurements of muscle thickness pennation angle muscles pennate structure, such as gastrocnemius, representative architecture, can easily be measured via musculoskeleta...

Pseudoaneurysm formation is a rare complication after knee arthroscopy. Most pseudoaneurysms complicating knee arthroscopy develop on the popliteal and geniculate arteries. We report a case of a pseudoaneurysm developed on an arterial branch to the medial gastrocnemius muscle, as a complication of an arthroscopic meniscectomy in a 66-year-old patient. The patient was treated successfully by res...

The ankle extensor muscles of the rat have different mechanical and physiological properties, providing a means of studying how changes in locomotor demands influence muscle fascicle behaviour, force and mechanical power output in different populations of muscle fibre types. Muscle fascicle strain, strain rate and activation patterns in the soleus, plantaris and medial gastrocnemius muscles of ...

Oxidative stress increases during unloading in muscle from young adult rats. The present study examined the markers of oxidative stress and antioxidant enzyme gene and protein expressions in medial gastrocnemius muscles of aged and young adult (30 and 6 mo of age) Fischer 344 x Brown Norway rats after 14 days of hindlimb suspension. Medial gastrocnemius muscle weight was decreased by approximat...

BACKGROUND Anterior cruciate ligament (ACL) injuries often occur during landing, with female athletes at higher injury risk than male athletes. Interestingly, female dancers have lower ACL injury rates than do female athletes in general. HYPOTHESIS Female dancers will have earlier and greater lower extremity muscle activity and higher sagittal knee joint and leg stiffness than will female bas...