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Biomedical subjects

J R Falk

Publications and source records attributed to J R Falk.

6 recordsLinked to original sources
PubMed1985

Activity measures in anorexia nervosa.

Twenty-four-hour measurements of wrist and ankle kinetic energy expenditures were obtained on 20 hospitalized female anorectics during the first two weeks of their hospitalization. Kinetic energy was examined against measures of weight, depression, and Minnesota Multiphasic Personality Inventory scores in a regression analysis. Effect of cyproheptadine hydrochloride, amitriptyline hydrochloride, and placebo on activity was assessed. The results supported previous studies showing a positive relationship between weight gain and motor activity and challenge the commonly held notion that activity decreases in anorectics as their clinical condition improves. Motor activity was initially significantly suppressed by cyproheptadine and subsequently increased.

Adolescent↗
PubMed1982

Amenorrhea in anorexia nervosa: examination of the critical body weight hypothesis.

In order to examine the relevance of the critical body weight hypothesis to menstrual regulation in anorexia nervosa, extensive physical, dietary, and behavioral assessments were made in 40 anorexia nervosa patients immediately before and after treatment, and at 3-month intervals up to 1 year posttreatment. Fifteen patients recovered menses; the body weights of these patients agreed with weights predicted by the critical body weight hypothesis. However, 12 patients with continuing amenorrhea had also achieved similar body weights. Clinical assessment showed that patients with continuing amenorrhea, both of normal and low weights, had significantly more "anorectic" attitudes and behaviors than the menstruating patients.

Adolescent↗
PubMed1981

Binge-eating and vomiting: a survey of a college population.

A survey of 355 college students was carried out to determine the prevalence of the psychiatric disorder bulimia (the binge-eating syndrome). Results of the survey indicate that, within the normal college population, 13% experienced all of the major symptoms of bulimia as outlined in the DSM-III. Within the bulimia population, 87% were females (19% of the female population) and 13% were males (5% of the male population). Although self-induced vomiting may accompany other symptoms of bulimia, the result suggest that self-induced vomiting is not a necessary symptom for diagnosis. A significant relationship between laxative use and self-induced vomiting was detected. These forms of behaviour, termed purging behaviour, occurred in an average of 10% of the students. Individuals who experienced the symptoms of bulimia had a history of being overweight or tended to be in the upper portion of their normal weight range (age, sex, and weight corrected) when compared with those individuals who had not experienced the symptoms of bulimia. No significant weight history differences were detected between vomiters and non-vomiters.

Adolescent↗
PubMed1981

Appetitive behavior after gastric bypass for obesity.

Eating behavior patterns were studied in 80 gastric bypass patients at 6, 12, and 24 months postoperatively. Significant reduction occurred in the amount of food eaten and in the frequency of eating. An unexpected result was the selective reduction of food eaten in certain food categories. The reduction of calorically-dense high carbohydrate foods indicates that gastric bypass surgery may have an effect on the digestion and absorption of food as well as the mechanical impairment of food intake secondary to the small stomach pouch.

Adolescent↗