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Biomedical subjects

G Beach

Publications and source records attributed to G Beach.

6 recordsLinked to original sources
PubMed1991

Normative database for trunk range of motion, strength, velocity, and endurance with the Isostation B-200 Lumbar Dynamometer.

A review of related literature and trends was used to develop a protocol for testing range of motion, isometric strength, velocity, endurance, and consistency of effort in the low-back pain (LBP) population by the use of the triaxial, Isostation B-200 Lumbar Dynamometer. Eighty-five men and 83 women with no history of LBP for the past 6 months volunteered for the study. Relationships between demographic and test measures were calculated by the use of the Pearson r correlation analysis and ANOVA. Body weight, age, and gender all showed strong (P less than .001), positive relationships to various test measures. The normative database is reported in terms of descriptive statistics allowing comparison of future test results within the normal distribution and corrected for significant demographic features.

Adult↗
PubMed1991

Relationship between performance on lumbar dynamometry and Waddell score in a population with low-back pain.

A prospective, blinded cohort study was performed to investigate the relationship between biomechanical variables measured during lumbar dynamometry and several psychological tests and measures of nonorganic pain behavior. Eighty-five men, aged 18-60 years, who had had low-back pain for longer than 5 weeks participated in the study. Nonorganic pain behavior was measured with the Waddell score, and lumbar function was measured with the Isostation B-200 Lumbar Dynamometer. Two brief psychological tests, the Coopersmith Self-Esteem inventory and an analog self-rating of wellness, were also administered. Relationships between biomechanical variables and psychological tests were calculated with the t-test, the Pearson r correlation, analysis of variance, and multiple step-wise logistic regression. Patients who exhibited excessive illness behavior (Waddell Scores 3-5) performed significantly worse (P less than .01) on almost all biomechanical variables. The Coopersmith Self-Esteem Score and "feelings" score had a slightly weaker but still significant correlation with motor performance. The results suggest that poor performance on biomechanical testing in this population may be a form of abnormal illness behavior and thus may not accurately reflect organic alterations of neuromusculoskeletal function.

Adult↗
PubMed1977

Conjoint therapy: a cooperative psychotherapeutic-optometric approach to therapy.

Optometrists often see patients who have psychological problems as well as visual problems. These patients are often referred to other disciplines for appropriate care. Although it is recognized that visual problems and emotional problems affect each other, after the appropriate referral very little interdisciplinary interaction occurs. The authors believe that this interaction--Conjoint Therapy--is frequently crucial for the successful remediation of the patient's emotional problem as well as his visual problem. They present in this report, just such a case with an anecdotal abstract from the psychological as well as the visual therapy reports.

Adolescent↗
PubMed1969

Autoradiographic demonstration of biochemical changes in the limbic system during avoidance training.

After injection of leucine-H(3), members from eight triplets of rats were assigned to one of three treatment groups: avoidance learning, the same handling and shocks without opportunity to learn, or passive control. Autoradiographic grains over all nuclei were counted "blind." In the hippocampus, the number of grains for the learning rats was reliably greater than that for either control. The differences approached statistical significance in the entorhinal cortex and the septal area but not in other brain areas or in the liver. Although the processes responsible for the increased incorporation are not yet defined, these changes probably are the result of learning rather than of stress.

Analysis of Variance↗
PubMed1967

Activity and responsivity in rats after magnesium pemoline injections.

Rats injected intraperitoneally with magnesium pemoline avoided a buzzing sound (conditioned stimulus) associated with an electric shock to the feet (unconditioned stimulus) more frequently than controls. Drug-injected rats did not avoid the foot shock more frequently than controls, although the experi mental rats did have shorter response latencies fn the active avoidance task. In sub sequent experiments which measured activity changes and response to the buzzing sound alone, it was found that magnesium pemoline caused a lesser decrease in activity level and a more sustained responsivity to the buzzer's. sound than did control injections of tragacanth. This may account for the latency differences observed in the avoidance task.

Animals↗