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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Indian preadolescent girls: lifestyle patterns and accumulated risk factors

Chhichhia, Purvi Unknown Date (has links)
The Indian population is at high risk for obesity and its related diseases. Paradoxically, there is also a high prevalence of low birth weight in this population. Throughout life, factors associated with these abnormalities reflect genetic, environmental and lifestyle patterns.World-wide, the Indian population is largely non-meat-eating which could compromise the quantity and quality of the diet in macronutrients (proteins) and micronutrients (vitamin B12). Vitamin B12 has been suggested to increase the risk for the metabolic syndrome (dyslipidemia, insulin resistance, hypertension and central adiposity). Factors measured in this pilot study designed to examine the differences between meat-eating and non-meat-eating Indian preadolescent girls were body composition, dietary food and nutrient analysis, physical activity patterns and biomarkers of diet and metabolic syndrome.Six non-meat-eating (9.8±0.9 y) and six meat-eating (10.0±0.6 y) Indian preadolescent girls participated in the two weeks study. Mothers and their daughters in each group had followed the same dietary pattern from birth. Anthropometry, hand-to-foot bioelectrical impedance and resting energy expenditure were measured. Biomarkers associated with one carbon metabolism; serum B12, methylmalonic acid (MMA) and folate were measured. Inflammatory markers; high sensitivity C-reactive protein and ferritin were measured. Serum lipids, fasting glucose and haematological parameters were measured. Time spent in sedentary activities and dietary information was extracted from seven day physical activity and food diaries respectively.There was an overall trend towards higher values for the non-meat-eaters as compared to the meat-eaters in body fat percent (29.7±6.6 vs. 29.0±6.2%, p = 0.85), and waist to hip ratio (0.89±0.12 vs. 0.84±0.07, p = 0.37) but the meat-eaters weighed more (31.2±5.5 vs. 33.3±9.6kg, p = 0.65). Compared to British reference ranges, girls in both groups had a higher BF% of 29±6% which was 34 percentile points above the British median (McCarthy et al., 2006) adjusted for age.Both groups spent 21 hours each day in non-moving/sedentary activities. Dietary consumption of vitamin B12 was higher in meat-eaters compared to non-meat-eaters (2.5±0.8 vs 1.8±0.6μg.day-1, p = 0.11). Serum vitamin B12 was substantially higher in the meat-eaters (543±212 vs. 232±95 pmol/L, p = 0.01) with lower serum concentrations of MMA (0.2 ± 0.1 vs 0.3 ± 0.2 μmol/L, p=0.3). Serum folate was adequate in all girls ranging from 16.5-45.0 pmol/L, which was within the normal reference values. Two non-meat-eating girls were vitamin B12 deficient (<170pmol/L). These differences were associated with high fibre and less protein intake in the nonmeat-eaters (30±8 vs. 20±7 g day-1; 64±12 vs. 66±11 g.day-1).The initial findings in this pilot study provide early evidence that risk factors for metabolic disease associated with body composition, diet and activity are accumulating in preadolescent Indian girls. Imbalance in one carbon metabolism is clearly a factor to be considered. In those with a low consumption of meat and/or animal products, B12 monitoring, dietary recommendations and if necessary supplementation should be considered and where possible intervention before pregnancy (as for folate) be a priority. New Zealand Indian people would be a priority group.It is time for serious action in this area of health so that the risk accumulated through an imbalance in nutrition and physical activity is reduced and the health of those as yet unborn is improved.
2

Indian preadolescent girls: lifestyle patterns and accumulated risk factors

Chhichhia, Purvi Unknown Date (has links)
The Indian population is at high risk for obesity and its related diseases. Paradoxically, there is also a high prevalence of low birth weight in this population. Throughout life, factors associated with these abnormalities reflect genetic, environmental and lifestyle patterns.World-wide, the Indian population is largely non-meat-eating which could compromise the quantity and quality of the diet in macronutrients (proteins) and micronutrients (vitamin B12). Vitamin B12 has been suggested to increase the risk for the metabolic syndrome (dyslipidemia, insulin resistance, hypertension and central adiposity). Factors measured in this pilot study designed to examine the differences between meat-eating and non-meat-eating Indian preadolescent girls were body composition, dietary food and nutrient analysis, physical activity patterns and biomarkers of diet and metabolic syndrome.Six non-meat-eating (9.8±0.9 y) and six meat-eating (10.0±0.6 y) Indian preadolescent girls participated in the two weeks study. Mothers and their daughters in each group had followed the same dietary pattern from birth. Anthropometry, hand-to-foot bioelectrical impedance and resting energy expenditure were measured. Biomarkers associated with one carbon metabolism; serum B12, methylmalonic acid (MMA) and folate were measured. Inflammatory markers; high sensitivity C-reactive protein and ferritin were measured. Serum lipids, fasting glucose and haematological parameters were measured. Time spent in sedentary activities and dietary information was extracted from seven day physical activity and food diaries respectively.There was an overall trend towards higher values for the non-meat-eaters as compared to the meat-eaters in body fat percent (29.7±6.6 vs. 29.0±6.2%, p = 0.85), and waist to hip ratio (0.89±0.12 vs. 0.84±0.07, p = 0.37) but the meat-eaters weighed more (31.2±5.5 vs. 33.3±9.6kg, p = 0.65). Compared to British reference ranges, girls in both groups had a higher BF% of 29±6% which was 34 percentile points above the British median (McCarthy et al., 2006) adjusted for age.Both groups spent 21 hours each day in non-moving/sedentary activities. Dietary consumption of vitamin B12 was higher in meat-eaters compared to non-meat-eaters (2.5±0.8 vs 1.8±0.6μg.day-1, p = 0.11). Serum vitamin B12 was substantially higher in the meat-eaters (543±212 vs. 232±95 pmol/L, p = 0.01) with lower serum concentrations of MMA (0.2 ± 0.1 vs 0.3 ± 0.2 μmol/L, p=0.3). Serum folate was adequate in all girls ranging from 16.5-45.0 pmol/L, which was within the normal reference values. Two non-meat-eating girls were vitamin B12 deficient (<170pmol/L). These differences were associated with high fibre and less protein intake in the nonmeat-eaters (30±8 vs. 20±7 g day-1; 64±12 vs. 66±11 g.day-1).The initial findings in this pilot study provide early evidence that risk factors for metabolic disease associated with body composition, diet and activity are accumulating in preadolescent Indian girls. Imbalance in one carbon metabolism is clearly a factor to be considered. In those with a low consumption of meat and/or animal products, B12 monitoring, dietary recommendations and if necessary supplementation should be considered and where possible intervention before pregnancy (as for folate) be a priority. New Zealand Indian people would be a priority group.It is time for serious action in this area of health so that the risk accumulated through an imbalance in nutrition and physical activity is reduced and the health of those as yet unborn is improved.
3

What is keeping meat-eaters from biting into plant-based meat alternatives? : A quantitative study explaining the impact of inhibitors of PBMA consumption among meat-eaters in Sweden.

Chmielowiec, Aleksander, Kocinová, Barbora January 2024 (has links)
Background: Even the lowest-impact animal-based food production has a much larger negative impact on the environment compared to plant-based alternatives. The lifestyle change of reducing meat consumption would decrease the negative impact of the food sector. One key obstacle to adopting this more sustainable diet are the inhibitors of the consumption of plant-based meat alternatives (PBMAs). The most commonly identified inhibitors are sensory attributes, price, health concerns, unfamiliarity with PBMAs and unwillingness to change. Purpose: The purpose of this study is to explain the impact of inhibitors of plant-based meat alternatives (PBMAs) consumption among meat-eaters in Sweden. Methodology: A quantitative and deductive research strategy was employed as the means of gathering data. The cross-sectional research design was used with the usage of self-completion questionnaires and administered on Facebook and Reddit. The sampling method employed convenience and purposive sampling and resulted in 334 responses (307 valid). The collected valid data was then cleaned, coded and subsequently examined through descriptive statistics, correlation analysis and multiple linear regression analysis.  Findings: The conducted regression analysis revealed that sensory attributes (H1), health concerns (H3), unfamiliarity (H4) and unwillingness to change (H5) had a significant negative impact on the consumption of PBMAs among meat-eaters in Sweden, thus these hypotheses were accepted. Price (H2) was found non-significant, resulting in the rejection of H2. Conclusion: The most impactful factor inhibiting the consumption of PBMAs among meat-eaters in Sweden was found to be sensory attributes (β = -0.265), followed by unwillingness to change (β = -0.238), health concerns (β = -0.161) and finally the least impactful unfamiliarity (β = -0.113). High prices were not an inhibitor of PBMA consumption among meat-eaters in Sweden. Conclusion: The most impactful factor inhibiting the consumption of PBMAs among meat-eaters in Sweden was found to be sensory attributes (β = -0.265), followed by unwillingness to change (β = -0.238), health concerns (β = -0.161) and finally the least impactful unfamiliarity (β = -0.113). High prices were not an inhibitor of PBMA consumption among meat-eaters in Sweden.

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