Existence in Subjects of Low Plasma Triiodothyronine Correlated With Post-Absorptive Resting Metabolism

美恵子, 島田; 守, 西牟田; 直子, 児玉; 裕, 吉武

doi:10.7600/jspfsm.55.295

Cited by 2 publications

(3 citation statements)

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“…9-14, Table 1) was measured using a Douglas bag and mass spectrometry. Some of these results were previously reported elsewhere (18,19).…”

Section: Determination Of Initial Body Weight (I-bw) and Final Body Wsupporting

confidence: 69%

“…Some of results in minerals and nitrogen were already reported (4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21). However, the relationship between EI and body weight change in female subjects was analyzed in this report for the first time.…”

Section: Methodsmentioning

confidence: 53%

“…9-11, Table 1) (18,19). In five out of six comparisons between EER and EEIs, EER was less than the lower limits of 95% CI of EEIs.…”

Section: Comparison Of Eei In This Analysis and Estimated Energy Requmentioning

confidence: 99%

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Equilibrium Energy Intake Estimated by Dietary Energy Intake and Body Weight Changes in Young Japanese Females

Miyamoto

Nishimuta

Hamaoka

et al. 2012

J Nutr Sci Vitaminol

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431Estimated energy requirement (EER) for the Japanese is defined as energy intake (EI) required to maintain body weight (1). However, EER is actually determined by measuring energy expenditure (EE). Although the units of EI and EE are the same (kcal), they are measured differently. EI is calculated based on the weight of food consumed and its energy content as it appears in the Food Composition Tables (2). EE is determined mainly by measurement of oxygen intake.There is no confirmation that EE and EI are the same, but the current guidelines for EI treat them as such (1). Thus, the present study sought to compare EE and EI to establish the relationship between the two.In adults, it should be possible to determine EER using EI if EI and body weight change are significantly correlated. Therefore, in a previous study (3), we tested this relationship using data from prior human metabolic balance studies in which male subjects consumed diets with known energy content and had their body weights recorded. Although the number of the subjects was small, the relationship between EI and body weight change was significant.In this analysis, we sought to confirm this relationship in a larger cohort of female subjects using data from human metabolic balance studies. SUBJECTS AND METHODSData for this analysis were obtained from 17 human metabolic balance studies (n5178) conducted by the National Institute of Health and Nutrition (Tokyo) between 1986 and 2007. Some of results in minerals and nitrogen were already reported (4-21). However, the relationship between EI and body weight change in female subjects was analyzed in this report for the first time. Three of these studies were omitted from the present analysis, two because they used male subjects, and one which did not collect skin-fold thickness data. Subjects in the remaining studies (14 experiments, n5149) were young females. In four and a half studies (n543), sweat was collected from the arm to estimate loss of minerals through sweating during exercise using a bicycle ergometer (intensity: 1.0-1.5 kp, velocity: 50-60 rpm, duration: 30-60 min/trial, once or twice per day, with room temperature 22-29˚C and humidity 40-65% RH) (4); these subjects were classified in the exercise group Summary To determine the energy intake (EI) required to maintain body weight (equilibrium energy intake: EEI), we investigated the relationship between calculated energy intake and body weight changes in female subjects participating in 14 human balance studies (n5149) conducted at the National Institute of Health and Nutrition (Tokyo). In four and a half studies (n543), sweat was collected from the arm to estimate loss of minerals through sweating during exercise on a bicycle ergometer; these subjects were classified in the exercise group (Ex G). In nine and a half experiments (n5106) subjects did not exercise, and were classified in the sedentary group (Sed G). The relationship between dietary energy intake (EI) and body weight (BW) changes (DBW) was analyzed and divided by four variables: b...

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“…9-14, Table 1) was measured using a Douglas bag and mass spectrometry. Some of these results were previously reported elsewhere (18,19).…”

Section: Determination Of Initial Body Weight (I-bw) and Final Body Wsupporting

confidence: 69%

Section: Methodsmentioning

confidence: 53%

See 1 more Smart Citation

Equilibrium Energy Intake Estimated by Dietary Energy Intake and Body Weight Changes in Young Japanese Females

Miyamoto

Nishimuta

Hamaoka

et al. 2012

J Nutr Sci Vitaminol

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Dietary Reference Intakes for Japanese 2010: Energy

Tabata

Ebine

Kawashima

et al. 2012

J Nutr Sci Vitaminol

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S26 Background InformationDaily energy expenditure (total energy expenditure) consists of basal metabolic rate (BMR), physical activity energy expenditure, and thermic effect of food (dietinduced thermogenesis). In children and infants, the need for additional energy for growth also requires determination of not only the energy necessary for meeting daily needs but also the energy necessary for increased tissue for growth (energy deposition) and the energy necessary for tissue formation. Of the two forms of energy required for growth, only energy for tissue formation is currently included in determination of total energy expenditure for children and infants. Therefore, to determine energy requirement, energy deposition needs to be added to total energy expenditure. Determining the energy requirement for pregnant women requires determination of the energy expenditure of the fetus and the energy necessary for the growth of fetal tissues. Determining the energy requirement for lactating women requires determination of the energy required to produce breast milk and consideration of weight loss corresponding to breast milk production. Therefore, increased or decreased energy requirements corresponding to an increase or decrease in tissue growth must be considered in addition to total energy expenditure, as reflected in the formula used to calculate energy requirements:Energy requirement 5 total energy expenditure1energy for the increased or decreased tissue. Summary For energy of Dietary Reference Intakes for Japanese (DRIs-J), the concept of Estimated Energy Requirement (EER) is applied. The EER has been established as an index for individuals and groups. The definition of EER for individuals is "habitual energy intake in a day which is predicted to have the highest probability that energy balance (energy intake2energy expenditure, in adults) becomes zero in an individual of a given age, gender, height, body weight, and level of physical activity in good health." In contrast, the definition of EER for a group is "habitual energy intake in a day which is predicted to have the highest probability that energy balance (energy intake2energy expenditure, in adults) becomes zero in a group." The EER is calculated as follows: EER (kcal/d)5basal metabolic rate (BMR) (kcal/d)3physical activity level (PAL). Representative values for BMR per kg body weight are determined based on a number of reports for Japanese. This is called the reference value of BMR (reference BMR). Total energy expenditure measured by the doubly labeled water (DLW) method is utilized to determine PAL for each sex and age group. For adults, physical activity levels are determined based on data for Japanese adults. For children, energy deposition is added to the total energy expenditure. For pregnant and lactating women, additional values compared to EER before pregnancy for each stage of pregnancy and during lactation are calculated. Excess post-exercise oxygen consumption is not added to calculate EER in addition to energy expenditure during physical acti...

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Existence in Subjects of Low Plasma Triiodothyronine Correlated With Post-Absorptive Resting Metabolism

Cited by 2 publications

References 18 publications

Equilibrium Energy Intake Estimated by Dietary Energy Intake and Body Weight Changes in Young Japanese Females

Equilibrium Energy Intake Estimated by Dietary Energy Intake and Body Weight Changes in Young Japanese Females

Dietary Reference Intakes for Japanese 2010: Energy

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