compound motor

compound motor

[′käm‚pau̇nd ′mōd·ər]
(electricity)
A direct-current motor with two separate field windings, one connected in parallel with the armature circuit, the other connected in series with the armature circuit.
References in periodicals archive ?
The present work is mainly concerned with the study of various electrodiagnostic parameters, i.e., DML, motor nerve conduction velocity, and compound motor action potential amplitude in normal healthy adult population of Haryana.
1998 [15] Present study Right side Moto 3.1[+ or -]0.3 2.9[+ or -]0.58 rmedian 11.1[+ or -]2.8 11.72[+ or -]5.22 56.5[+ or -]3.5 52.58[+ or -]6.62 Motor ulnar 2.4[+ or -]0.3 2.07[+ or -]0.44 9.2[+ or -]2.2 10.02[+ or -]3.22 60.4[+ or -]5.2 53.28[+ or -]6.62 Nerve Present study Left side Moto 2.88[+ or -]0.61 rmedian 12.32[+ or -]5.44 52.48[+ or -]5.92 Motor ulnar 2.11[+ or -]0.52 9.8[+ or -]2.88 52.18[+ or -]5.32 DML: Distal motor latency, CMAP: Compound muscle action potential, CMAPA: Compound motor action potential amplitude, MNCV: Motor nerve conduction velocity, CV: Conduction velocity
Motor nerve conduction velocities (MNCVs) were not evoked in the distal lower limbs, while very low amplitudes of compound motor action potential and mildly decreased MNCVs in the other motor nerves were recorded.
There was also a positive trend on two novel biomarkers: rate of decline of muscle volume and of compound motor axon potential (CMAPs).
Nerve conduction study showed diminished Compound Motor Action Potential (CMAP) with normal conduction velocity in both median, ulnar and peroneal nerves.
Electrodiagnostic studies of all patients displayed markedly reduced compound motor axon potentials with preserved sensory nerve action potentials; the results were interpreted as consistent with a process primarily localized to the motor axons or, far more likely, given the clinical scenario and pathologic data from WNV-infected animals, the anterior horn cells of the spinal cord.
Electromyography demonstrated a trend of stabilization of the compound motor axon potential in the right musculocutaneous nerve as compared to deterioration observed in the left.