Biomedical subjects

J L Kelly

Publications and source records attributed to J L Kelly.

3 recordsLinked to original sources

PubMed1979

Procedures for EMG biofeedback training in involved upper extremities of hemiplegic patients.

This article presents practical information about using electromyographic biofeedback to train specific muscle groups in the involved upper extermity of hemiplegic patients. Our approach is first to reduce hyperactivity in spastic musculature and then to increase activity levels in weak muscles. Electrode placements and a sequence of training procedures for muscles whose functions are most commonly impaired following stroke are described.

Arm↗

PubMed1979

EMG biofeedback in stroke: effect of patient characteristics.

Forty-eight upper and 44 lower extremities of 52 stroke patients were treated using a clinical emg biofeedback training approach. The age, sex, hemiparetic side, duration of stroke or previous rehabilitation, and number of biofeedback training sessions had no significant relationship to treatment outcomes. Lower extremities responded more favorably to training than upper extremities, and the prospects for successful treatments in the upper limb were further diminished when proprioceptive impairments were present. Possible explanations for the poorer responsiveness of the upper extremity to emg biofeedback training are provided, the importance of a motivational element is stressed, and a suggestion is offered for the direction of future work designed to predict the value in applying this modality.

Adolescent↗

PubMedDate not supplied

Lipid transport in the avian species. Part 2. Isolation and characterization of lipoprotein A and lipoprotein B, two major lipoprotein families of the male turkey serum lipoprotein system.

(1) Male turkey serum contains two major lipoprotein families designated as LP-A and LP-B in its lipoprotein density classes. These two lipoprotein families were separated from each of the lipoprotein density classes by affinity chromatography on concanavalin A-Sepharose 4B. LP-A was present in the unretained and LP-B in the retained fractions. Both lipoprotein families were characterized by determination of their immunological and electrophoretic properties, the flotation coefficient and chemical composition. (2) LPb was distributed over a wider density range than LP-A. Seventy-four percent of LP-B was found in the LDL, 17% IN The VLDL and 8% in the HDL. In contrast, 98% of LP-A was present in the HDL and 2% in the LDL fractions: there were only trace amounts of LP-A in the VLDL. (3)Immunological and electrophoretic studies showed that the protein moiety of LP-A contained only the two non-identical A-I and A-II polypeptides of ApoA. The protein moiety of LP-B consisted only of ApoB. (4) Isolation of LP-A and LP-B from the major lipoprotein density classes provided further experimental evidence to confirm the existence of chemically distinct lipoprotein families as the fundamental physical-chemical entities of the serum lipoprotein system.

Animals↗