BACKGROUND In patients who have an injury of the cervical spinal cord, the brachioradialis tendon may be transferred to the extensor carpi radialis brevis tendon to restore voluntary wrist extension. We hypothesized that the active range of motion of the wrist depends on the position of the elbow after this transfer because the brachioradialis changes length substantially during elbow flexion, ...

The new pedagogical ideas about teaching sciences suggest that hands-on experiment is the more effective way of attracting and motivating students. The objective of the present study was to investigate the function of the brachioradialis muscle (BR) in different contractions. The analysis of four of the most common sEMG parameters, offers the way to investigate the quality of functions of the b...

Objective This study looks at the risks associated with subclinical hypothyroidism and a new management paradigm that optimizes thyroid function based on Resting Metabolic Rate (RMR) and Brachioradialis Reflexometry (BR). Main Outcome Brachioradialis Reflexometry (BR) correlates the best with RMR measurements and, in this population, seems to be the best parameter to titrate thyroid dose. Using...

[Purpose] This study investigated changes in the activation of the main elbow muscle while performing tasks similar to activities of daily living (ADL) with and without a cock-up splint. [Methods] Sixteen participants performed a simulated feeding task and picked up light and heavy cans in the Jebsen-Taylor hand function test. The activation of the biceps brachii, the triceps brachii, and the b...

The study compared changes in intramuscular and surface recordings of EMG amplitude with ultrasound measures of muscle architecture of the elbow flexors during a submaximal isometric contraction. Ten subjects performed a fatiguing contraction to task failure at 20% of maximal voluntary contraction force. EMG activity was recorded in biceps brachii, brachialis, and brachioradialis muscles using ...

A technique was developed for calculating the torque generated by two individual muscles (biceps brachii and brachioradialis) that contribute to the isometric flexion of the elbow. The external torque is the sum of individual torques which are unknown. Each individ.ual torque (C, or C,,) can be related to the corresponding integrated rectified surface EMG (Qe or QBR) by means of coefficients @a...

Proliferative myositis is a rare, self-limiting, benign disease. Its diagnosis can be difficult and in many cases is not confirmed until after surgical resection. Herein, we report a case of proliferative myositis of the right brachioradialis in a 64-year-old man. The patient presented with a rapidly growing, painless mass in his right forearm. Magnetic resonance imaging and fine-needle aspirat...

We hypothesized that muscles crossing the elbow have fundamental differences in their capacity for excursion, force generation, and moment generation due to differences in their architecture, moment arm, and the combination of their architecture and moment arm. Muscle fascicle length, sarcomere length, pennation angle, mass, and tendon displacement with elbow flexion were measured for the major...