Search PubMed⌕ Search

Biomedical subjects

F A Jones

Publications and source records attributed to F A Jones.

At least 37 records · Page 2Linked to original sources
PubMed1986

Description of a food recording electronic device for use in dietary surveys.

A Food Recording Electronic Device has been developed for quantitative collection of dietary data in the home for a period of up to 3 weeks. The accumulated information on the weights and types of food, and time of consumption, is transferred to a host computer for calculation of the nutrient composition of the diet. Using this method the subject does not have to read the balance or keep a written diary, and the need for coding of records by a dietitian is eliminated.

Diet Surveys↗
PubMed1986

Energy, protein and fat intake estimated using a food recording electronic device compared with a weighed diary.

Twenty nine subjects kept a weighed diet diary for 7 days. This was coded using both detailed food composition tables and food groups. During the 7 days a Food Recording Electronic Device (FRED) with food group keyboard labelling was also used. This group of motivated subjects had no difficulty in using the device, and the use of food groups was not a source of error. Some technical problems were identified which led to a significant systematic underestimation of energy, protein and fat determinations using the FRED, although the correlation coefficients between the two methods were high. The technical problems were of a type which can be eliminated in future models of the FRED.

Adolescent↗
PubMed1985

An abbreviated food table using food groups for the calculation of energy, protein and fat intake.

A method of estimating the energy, protein and fat composition of diets is described, based on 84 food groups. Data from 3 dietary studies are used to compare intake calculated using the food groups and detailed food composition tables, with analyses of duplicate diets. For even small groups of people the mean differences and correlation coefficients between calculated and analysed results are similar for both methods of calculation. This approach could be used as a rapid coding method, or where skilled manpower is not available.

Adult↗
PubMed1984

The effects of moderate protein or energy supplements on subsequent nutrient intake in man.

A moderate energy (0 g protein, 420 kcal) supplement was given daily to a group of people (n = 14) in one week, and a placebo was administered daily in another week. A second group (n = 13) was given a protein supplement (14 g protein, 84 kcal) daily during one week and a placebo in a separate week. A crossover design was used. The effect of the energy supplement was to increase the mean energy intake by 273 kcal, in the treatment compared with the placebo week. That is, 32% of the energy value of the drink was accommodated by a change in the diet; this change was not significant. The effect of the protein supplement was to increase the mean protein intake on day 1 by 20.5 g, in the treatment compared with the placebo week. This increment decreased linearly throughout the week, to 5.9 g on day 7. At lunchtime, carbohydrate intakes were significantly depressed after the protein supplement, and protein intake was significantly increased after the energy supplement.

Adult↗
PubMed1983

Indigestion.

Explore the source record for details and available documents.

Colonic Diseases, Functional↗
PubMed1980

Maternal responsiveness of primiparous mothers during the postpartum period: age differences.

Variables influencing maternal responsiveness of primiparous mothers in the postpartum period were explored. Forty mothers, aged 17 to 24, were randomly assigned to either a control group, or to a group with one of two experimental conditions: additional information given mothers about the sensory capacity of neonates, or additional postpartum contact with their infants. Age differences in maternal responsiveness were also examined. Fourteen dependent measures of maternal behavior were obtained from video-taped sessions of mothers watching their infants. In addition, lateral preference of mothers for their infant following midline presentation was also noted. At the time of hospital discharge (a mean time of 3.5 days following birth) no differences were found on the dependent measures for either experimental condition. The age of the mother was isolated as a variable influencing maternal readiness. Mothers were divided into three age groups: low (17 and 18 years, N = 17), middle (19 and 20 years, N = 10), and high (21 to 23 years, N = 13). Age effects upon the 15 measures were assessed. The results suggest that there is a "critical" age when a mother may develop maternal readiness. Mothers 19 years of age and older demonstrated significantly more maternal responsiveness toward their infants than did mothers 18 years and younger.

Age Factors↗