[Purpose] The aim of this study was to investigate whether the performance of a combination of observation and motor imagery of chopstick use (complex task) increased corticospinal excitability more than the performance of observation alone. [Subjects and Methods] We recruited 10 healthy subjects with no history of neurological diseases. Corticospinal excitability was assessed with the particip...

UNLABELLED We assessed the proximity of neurological structures to arthroscopic portals in a cadaveric study and through a systematic review. Arthroscopy was performed on ten cadaveric wrists. Subsequently the specimens were dissected to isolate the superficial branch of the radial nerve, the dorsal branch of the ulnar nerve, the posterior interosseous nerve and the extensor tendons. We measure...

Many bilateral motor tasks engage simultaneous activation of distal and proximal arm muscles, but little is known about their physiological interactions. Here, we used transcranial magnetic stimulation to examine motor-evoked potentials (MEPs), interhemispheric inhibition at a conditioning-test interval of 10 (IHI(10)) and 40 ms (IHI(40)), and short-interval intracortical inhibition (SICI) in t...

Neural drive to inspiratory pump muscles is increased under many pathological conditions. This study determined for the first time how neural drive is distributed to five different human inspiratory pump muscles during tidal breathing. The discharge of single motor units (n = 280) from five healthy subjects in the diaphragm, scalene, second parasternal intercostal, third dorsal external interco...

Notwithstanding the apparent demands regarding fine motor skills that are required to perform in action video games, nervous system of players has not been studied systematically. In present study, we hypothesized find differences sensorimotor performance and corticospinal characteristics between game (Players) Controls. We tested games tasks used transcranial magnetic stimulation (TMS) measure...

A 64-year-old woman had a painful left hand her entire life. Examination revealed hypertrophy of the left arm and hand with an increased muscle bulk of the first dorsal interosseous muscle and ulnar deviation of digits II to V (figures 1 and 2). Except for large motor unit potentials with a normal interference pattern, EMG was normal. Brain imaging was normal. Unilateral upper limb muscular hyp...