Background: Hamstring muscle injuries are among the most common lower extremity injuries in athletes. Pain in the posterior thigh and leg weakness are usual presenting symptoms. Less dramatic onset in nonathletes, without pain in the posterior thigh, is more often thought of as an ischial bursitis or as pain from the sacroiliac joint or the gluteal or piriformis muscles. Pain localized over the...

The study of the back muscles bioelectric activity in 216 children in the age between 10-15 years showed that the total paravertebral muscles bioelectrical activity on the convex side of the proximal curve and on the concave side of its distal part is higher compared with that on the opposite side. Analysis of H-reflex and M-responses in 302 patients in the age between 10-15 years created a nor...

The presence of additional muscles in the forearm extensor compartment is frequently encountered during surgical procedures and anatomical dissections. There are several types of anomalous muscles such as the extensor indicis proprius, the extensor digitorum brevis manus, the extensor medii proprius, and the extensor indicis et medii communis that have been previously reported in the medical li...

Dermatomyositis is an inflammatory muscle disease characterized by weakness of the skeletal muscles, in particular, the proximal muscles of the arms and thighs.1 If untreated, it is associated with progressive deterioration, and the severity ranges from mild to severe and can include paralysis. The onset is slow, over months in the majority of patients, but some people have rapid onset and prog...

INTRODUCTION Lumbrical muscles play a vital role in the precision movements of the hand, along with the thenar, hypothenar and interossei muscles. The variation in the lumbrical muscle is clinically significant. CASE PRESENTATION During routine dissection of an adult male cadaver, we observed an additional muscle belly of the first lumbrical muscle took origin from the tendon of the flexor di...

Observations are presented on a family with muscular weakness and wasting with an onset in childhood, predominantly affecting the proximal muscles in the upper limbs and the distal muscles in the lower. This was accompanied by contractures of the elbows and by pes cavus. Pseudohypertrophy was absent. Progression was slow, but an associated cardiomyopathy developed in adult life. Investigations ...

Pathological movement patterns like crouch gait are characterized by abnormal kinematics and muscle activations that alter how muscles support the body weight during walking. Individual muscles are often the target of interventions to improve crouch gait, yet the roles of individual muscles during crouch gait remain unknown. The goal of this study was to examine how muscles contribute to mass c...

chronic inflammatory demyelinating polyneuropathy is an autoimmune disease with progressive and relapsing courses. the main clinical presentations are diffuse deep tendon hyporeflexia or areflexia and symmetric proximal-distal muscles weakness. myasthenia gravis is also an immune mediated disease with fluctuating ocular and bulbar symptoms and sometimes weakness. although both myasthenia gravis...

black leg has been reported in a variety of animals, but is ofthe most importance in cattle and sheep. a20 days old holsteindairy calf was examined because of anorexia and lameness from2 days ago. the calf was depressed, tachypneic, tachycardic, andhad a body temperature of 38.5ºc. both hind limbs proximal tothe tarsal joint were markedly swollen, firm and painful. nocrepitation was noted on pa...

Hypokalemic periodic paralysis is an uncommon manifestation of thyrotoxicosis and the condition is most commonly reported in young Asian men. Patient often presents with acute onset symmetrical flaccid muscle paralysis and proximal limb muscles may be more severely involved compared to distal muscles. Thyroid swelling as well as features of thyrotoxicosis may not be overt. A very high index of ...