Spelling suggestions: "subject:"immunonutrition"" "subject:"denutrition""
1 |
Re-evaluation of energy requirements in Canadian women over fifty years using doubly-labelled water and multimedia diet recordsKaczkowski, Crystal H. January 1999 (has links)
Dietary assessment methods are often plagued with inconsistent or inaccurate data. Self-reported intakes are particularly susceptible to error as research has shown that humans habitually report food intake inappropriately. Self-reported intakes have been used to create energy recommendations for populations. In order to assess energy intake, a novel 4 day multimedia dietary assessment method was developed utilizing a tape-recorder and camera in an attempt to more accurately quantify energy intake than traditional methods. The Recommended Nutrient Intakes for Canadians ( RNIC) provide population mean energy estimations. An objective was to determine whether the RNIC provides an accurate index of energy requirements. Current literature suggests that the RNIC is inadequate in some populations to meet energy needs when validated against methods such as doubly-labelled water (DLW). Total energy expenditure (TEE) and body composition were determined through the use of DLW in 76 women (49--93 years) over 13 days. The multimedia diet records did not reflect true intake in these subjects as demonstrated by a mean 24% underreporting rate when compared to TEE. Mean energy expenditure (MJ/day) as determined by doubly-labelled water was significantly higher (p < 0.01) in each stratified age range when compared to reported energy intake by multimedia diet records. The use of tabulated RNIC's underestimated true energy requirements by a mean of 29%. Food and Agriculture Organization/World Health Organization energy predictions closely estimated actual TEE in the study population. This research agrees with current literature questioning the validity of self-reported dietary intake data.
|
2 |
Re-evaluation of energy requirements in Canadian women over fifty years using doubly-labelled water and multimedia diet recordsKaczkowski, Crystal H. January 1999 (has links)
No description available.
|
3 |
Web-based nutrition education for university middle-aged female staffYen, Wan-Ju. January 2009 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009. / Title from title screen (site viewed January 12, 2010). PDF text: vii, 81 p. ; 1.25 Mb. UMI publication number: AAT 3365764. Includes bibliographical references. Also available in microfilm and microfiche formats.
|
4 |
Understanding factors affecting food intake in elderly women living in the communityCheung, Winnie, 1979- January 2006 (has links)
Many community-dwelling seniors are reported to have inadequate dietary intakes. Factors affecting food intake have been studied mainly from the perspectives of health professionals. As the reasons for adequate food intake are complex, understanding the seniors' perspective could provide further help in understanding their needs. / Three semi-structured interviews were conducted with each of eight community-dwelling women aged 73 to 91 who were at-risk of malnutrition. A qualitative analysis showed the women were reporting three essential aspects: struggling to maintain their independence (i.e., frustration with health care, stereotyping seniors, simplifying cooking); learning new ways of functioning (i.e., adapting to health limitations, simplifying meals etc) and; taking control (i.e., planning own meal and food supplies, monitoring health and keeping physically and mentally active). Finally, this qualitative research paradigm was useful and it demonstrated how careful listening could help to understand the individual needs of free-living seniors at risk of malnutrition.
|
5 |
Understanding factors affecting food intake in elderly women living in the communityCheung, Winnie, 1979- January 2006 (has links)
No description available.
|
6 |
Effect of vitamin B-6 intake, protein intake and bioavailability on vitamin B-6 status for womenHansen, Christine M., 1953- 21 September 1995 (has links)
Four studies were conducted to evaluate the effect of varying levels of vitamin
B-6 (B6), protein and pyridoxine glucoside (PNG) on B6 status and requirements of
women. In the first two studies, women were fed a constant protein diet and vitamin
B-6 intakes of 0.84 to 2.39 mg/d during 10- to 15-day experimental periods.
Significant differences among intake levels were found in urinary 4-pyridoxic acid
(4PA) and total vitamin B-6 (UB6), plasma pyridoxal 5'-phosphate (PLP) and total
vitamin B-6 (TB6), and urinary xanthurenic acid (XA) following a tryptophan load.
Significant correlations were found between B6 intake and 4PA, UB6, plasma PLP,
TB6, erythrocyte alanine aminotransferase (EALT) percent stimulation, and postload
urinary XA and volatile amines (VA, kynurenine plus acetylkynurenine). More than
1.33 mg B6/d (> 0.016 mg B6/g dietary protein) was required for adequate B6
status. In a third study, nine women were fed diets providing 1.25 mg B6/d and three
levels of protein (0.5, 1.0 and 2.0 g/kg body weight), for 14 days each. Significant
differences in urinary 4PA, plasma PLP, and postload urinary VA were found among protein levels. Nitrogen intake was significantly negatively correlated with urinary
4PA and plasma PLP, and positively correlated with EALT percent stimulation and
postload urinary kynuremc acid (KA), XA and VA. Compared to men in a previous
study, women excreted a greater percentage of B6 intake as 4PA, had lower plasma
PLP and greater amounts of postload urinary tryptophan metabolites. At least 0.020
mg B6/g protein was required for adequate status. In a fourth study, nine women
were fed diets with a high (27%) or low (9%) percentage of the B6 intake as
pyridoxine glucoside, a form known to have reduced bioavailability, for 18 days each.
Urinary 4PA and UB6, plasma TB6 and red blood cell PLP were significantly lower,
and fecal B6 was significantly higher during the high PNG diet. The decrease in B6
status indicators on the high PNG diet suggested a loss of 15 to 18% of the total B6
intake. Taking into account bioavailability and gender differences in the effect of
dietary protein, and including a safety margin, the RDA for B6 for women should be
at least 0.020 mg/g dietary protein. / Graduation date: 1996
|
7 |
Effect of glycosylated vitamin B-6 intake on the excretion of vitamin B-6 in womenChen, Wen-shan Chou, 1964- 13 May 1992 (has links)
The effect of dietary glycosylated vitamin B-6 on the bioavailability
of vitamin B-6 was determined in 4 women. A 44-d metabolic-balance diet
study was divided into a preliminary 8-d adjustment period followed by
two 18-d experimental periods. The subjects were divided into two groups
in a crossover design to compare the effect of low- and high-glycosylated
vitamin B-6 diets on the bioavailability of vitamin B-6. The total vitamin
B-6 content in the low- and high-glycosylated vitamin B-6 diets was 1.506
mg (8.91 nmol) and 1.897 mg (11.22 μmol), respectively, in which 11 and
22% was the glycosylated form, respectively. Daily 24-h urine specimens
were collected by each subject throughout the study; 7- or 8-d fecal
collections were made at the end of each experimental period. The four
subjects' mean urinary total vitamin B-6 excretion during the low- and
high-glycosylated vitamin B-6 periods was 0.76 ± 0.20 and 0.67 ± 0.06
μmol/24 h, respectively; fecal total vitamin B-6 excretion was 2.98 ± 0.43
and 4.56 ± 0.87 μmol/24 h, respectively. Expressed as % of total vitamin B-6 intake, the mean urinary total vitamin B-6 excretion was lower during the
high-glycosylated vitamin B-6 period (6.0 ± 0.8%) than during the low-glycosylated
vitamin B-6 period (8.5 ± 2.4%); in contrast, their mean fecal
vitamin B-6 excretion during the high-glycosylated vitamin B-6 period
(40.7 ± 8.2%) was greater than the low-glycosylated vitamin B-6 period (33.6
± 5.4%). In addition, approximately 11% of ingested glycosylated vitamin
B-6 was excreted in urine. These results suggest that dietary glycosylated
vitamin B-6 is not completely bioavailable to humans, and the extent of its
utilization is not affected by dietary glycosylated vitamin B-6 intake. / Graduation date: 1993
|
8 |
Dietary intakes of eumenorrheic, oligomenorrheic, and amenorrheic endurance-trained runners and cyclistsMier, Constance, 1959- January 1989 (has links)
Specific dietary intakes were compared by menstrual status among endurance-trained athletes categorized as either eumenorrheic (EU) (N = 11), oligomenorrheic (OL) (N = 4) or amenorrheic (AM) (N = 5). It was hypothesized that nutrient intakes among endurance-trained women would be significantly different based on menstrual status. No significant differences in nutrient intakes were found among groups. The OL and the AM groups were significantly (p ≤ .05) younger than the EU group and the AM group had a significantly higher percent body fat when estimated by hydrostatic weighing (PFHW) than the EU group. Further comparisons of nutrient intakes were made between EU (N = 10) and AM (N = 4) runners. Zinc intake was significantly lower in the AM runners as compared to the EU runners. The AM runners were also significantly younger and had significantly higher PFHW than the EU runners. In conclusion, energy nutrient intakes appeared to not be significant factors in menstrual status. However, zinc intake was significantly lower (p ≤ .05) in AM runners as compared to EU runners.
|
9 |
Nutritive value of the diets of the individual members of a negro cooperative group at Kansas State College of Agriculture and Applied ScienceRobinson, Jayne Glenn January 1939 (has links)
No description available.
|
10 |
Nutrition during oral contraceptive treatmentSiu, Annie Chi-Yee January 2010 (has links)
Typescript, etc. / Digitized by Kansas Correctional Industries
|
Page generated in 0.1148 seconds