In this paper, we introduce a new mode of mechanomyography (MMG) signal capture for enhancing the performance human-machine interfaces (HMIs) through modulation normal pressure at sensor location. Utilizing novel approach, increased MMG resolution is enabled by tunable degree freedom to sensor-skin contact area. We detail mechatronic design, experimental validation, and user study an armband wi...

Stürze und sog. Sport assoziierte Verletzungen haben einen Häufigkeitsgipfel in der Adoleszenz, wobei Kontakt- Risikosportarten, z. B. Handball oder Mountain Biken, eine führende Rolle einnehmen. Anderweitige vor allem im häuslichen Umfeld betreffen die ältere Bevölkerung geschlechtsunabhängig. Diese Traumata können für Läsionen des triangulären fibrokartilaginären Komplex (TFCC), Ligamentum lu...

A 73yearold man with essential hypertension abruptly developed leftsided moderate shoulder weakness and came to our hospital. General examination demonstrated no abnormalities. Cranial nerve impairment was not detected. The patient was righthanded. Hand grasping power was 29 kg in the right and 23 kg in the left. In the upper extremities, leftsided Barré sign was detected. In the lower extremit...

numerous causes are reported for ulnar nerve compression at the wrist, known as guyon's tunnel syndrome. in the present article, a patient with guyon's tunnel syndrome during pregnancy concomitant with an anomaly of ulnar nerve is described. a 29-year-old iranian woman presented with clinical features of guyon's tunnel syndrome (pain and paresthesia in the fifth finger of the left hand and atro...

Acute rupture of flexor tendons following distal radius fracture is very rare. We experienced four cases of acute rupture of flexor tendons that were treated surgically. Injured tendons included flexor pollicis longus, flexor carpi radialis, palmaris longus and third flexor digitorum profundus. A severely displaced fracture with a volar spike of the distal radius was detected on plain radiograp...

We report the case of a 24-year-old man with a congenital meniscoid articular disc of the triangular fibrocartilage complex with extensor carpi ulnaris tenosynovitis. His young age, the normal articular cartilage, the lack of degenerative changes at the margins of the defect and its bilateral occurrence made this diagnosis likely. A congenital defect of the articular disc of the triangular fibr...

Rheumatoid arthritis commonly affects the distal radioulnar joint (DRUJ). This can result in pain, instability, or tendon rupture. The goals of surgical reconstruction of the DRUJ are to relieve pain, stabilize the joint, and prevent tendon rupture. We review many of the previously described procedures and report our experience with distal ulna excision and soft tissue reconstruction with a dis...

[Purpose] This study measured %isolation and investigated whether it shows a difference between the presence and absence of wrist joint restriction, as well as changes in muscle activity patterns. [Methods] Twenty subjects performed upper extremity functional movement in the Manual Function Test (MFT) with and without wrist restriction, and the muscle activities of the trapezius, middle deltoid...