25 Local field potentials (LFPs) in primary motor cortex include significant information 26 about reach target location and upper limb movement kinematics. Some evidence suggests that 27 they may be a more robust, longer-lasting signal than action potentials (spikes). Here we assess 28 whether LFPs can also be used to decode upper limb muscle activity, a complex movement29 related signal. We re...

Nerve transfers are becoming used increasingly for repair of severe nerve injures, especially brachial plexus injuries, where the proximal spinal nerve roots have been avulsed from the spinal cord. The procedure essentially involves the coaptation of a proximal foreign (donor) nerve to the distal denervated (recipient) nerve, so that the latter's end-organs will be reinnervated by the donated a...

The study of the activity of the proximal muscles of the upper limb and in particular of muscles acting on the gleno-humeral joint in microgravity condition has a special interest because: 1. The upper limbs play a major role in posture and locomotion for the subject living in the space station; 2. Muscle fatigue may have a significant effect on the hand and upper limb, for the ordinary work on...

BACKGROUND Neuromuscular symptoms in patients with Lambert-Eaton myasthenic syndrome (LEMS) and a small cell lung cancer (SCLC) develop more rapidly than in LEMS patients without a SCLC. We studied how this clinical information, which is readily available at the first consultation, can be used to predict the presence of SCLC. PATIENTS AND METHODS In our study we included 52 LEMS patients with...

The aim of this study was to assess the muscle functional connectivity obtained from surface electromyogram (SEMG) during unilateral and bilateral texting on a smart-phone as well as standard text entry on a personal computer. Fourteen healthy adults participated in the study. The SEMG signals from the left and right proximal: cervical erector spinae, upper trapezius, lower trapezius and distal...

We examined the functional role of two major proximal leg extensor muscles of tammar wallabies during level and inclined hopping (12 degrees, 21.3% grade). Previous in vivo studies of hopping wallabies have revealed that, unlike certain avian bipeds, distal hindlimb muscles do not alter their force-length behavior to contribute positive work during incline hopping. This suggests that proximal m...

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...

Five of 65 patients referred for electrodiagnosis because of clinical evidence of carpal tunnel syndrome were found to have near normal latency on proximal stimulation of the median nerve, although the distal motor latency was prolonged. In one patient, the proximal latency was actually shorter than the distal latency. The failure of the proximal latency to be prolonged in proportion to the dis...

Introduction The gluteus maximus muscle is the largest and most powerful muscle in the gluteal region of the body. It is the most superficial of the three gluteal muscles, covering all of the others except for a small part of the gluteus medius muscle. The gluteus maximus slopes inferiolaterally at a 45° angle from the pelvis to the buttocks [1]. The approximate superior two-thirds of fibers of...