scholarly journals High basal metabolic rate/fat-free mass ratio in Japanese elite male athletes can be attributed to body composition

2012 ◽  
Vol 61 (4) ◽  
pp. 427-433 ◽  
Author(s):  
Wakako Tatsuta ◽  
Yukari Yokota ◽  
Akiko Kamei ◽  
Noriyuki Tawara ◽  
Takashi Kawahara ◽  
...  
Keyword(s):  
Body Composition ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Fat Free Mass ◽  
Mass Ratio ◽  
Male Athletes ◽  
High Basal Metabolic Rate

scholarly journals Basal metabolic rate and body composition of elite Japanese male athletes

2012 ◽  
Vol 59 (3.4) ◽  
pp. 253-260 ◽  
Author(s):  
Takako Koshimizu ◽  
Yoshiko Matsushima ◽  
Yukari Yokota ◽  
Kae Yanagisawa ◽  
Satsuki Nagai ◽  
...  
Keyword(s):  
Body Composition ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Male Athletes ◽  
Japanese Male

scholarly journals Body composition and basal metabolic rate in pregnant women

2013 ◽  
Vol 76 (2) ◽  
pp. 163-171
Author(s):  
Shaila Bhardwaj ◽  
Deepali Verma ◽  
Satwanti Kapoor
Keyword(s):  
Body Composition ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Longitudinal Design ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Fat Free Mass ◽  
Metabolic Adaptation ◽  
Cross Sectional ◽  
The Relationship

Abstract Pregnancy, a milieu of physiological and metabolic adaptation, is associated with enhanced basal metabolic rate by alteration in maternal tissue and metabolism to ensure foetal growth and development. A cross-sectional study of Indian Baniya females was conducted to assess the relationship between basal metabolic rate and body composition during pregnancy. The 20-40 year old female subjects were broadly categorized in two groups; pregnant (N=198) and non-pregnant (N=35).Anthropometric measurements of each subject included height and weight, with basal metabolic rate (BMR), fat mass (FM), fat-free mass (FFM) and total body water (TBW) assayed by bioelectric impedance body composition analyzer. The descriptive statistics revealed pregnancy associated weight gain, increased FFM, FM, TBW and BMR with marked changes during the second and third trimesters. Although multiple linear regression analysis showed substantial change in BMR due to both FM and FFM, fat-free mass contributed to a much lesser extent. Pregnancy, as an anabolic phase of the female reproductive cycle, is associated with metabolic flexibility which alters the relationship between body composition and BMR. These findings however require further validation in longitudinal design studies.

scholarly journals The effect of exercise and improved physical fitness on basal metabolic rate

1989 ◽  
Vol 61 (2) ◽  
pp. 155-173 ◽  
Author(s):  
S. A. Bingham ◽  
G. R. Goldberg ◽  
W. A. Coward ◽  
A. M. Prentice ◽  
J. H. Cummings
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Control Period ◽  
Normal Weight ◽  
Fat Free Mass ◽  
Step Test ◽  
Doubly Labelled Water ◽  
Entire Study

1. The suggestion that there is a sustained enhancement in metabolic rate after exercise was investigated during the course of a study in which six normal-weight volunteers (three men, three women) took part in a 9-week training programme. Baseline values were assessed in a 3-5 week control period of minimal activity before training. At the end of the study the subjects were capable of running for I h/d, 5 d/week.2. Throughout the entire study the subjects were maintained on a constant diet. Measurement of energy expenditure by the doubly-labelled water (2H218O) method showed that the subjects had an energy imbalance of +3% in the control and -20% at the end of the training period. The subjects were in positive (1·1 (se 0·2) g) nitrogen balance in the second week of the control, and in negative (-0·6 (se 0·3) g) N balance in the last week of the exercise period.3. Over the course of the study maximum oxygen consumption (Vo2max) and high-density-lipoprotein-cholesterol levels increased by 30%. Heart rate at rest and when performing a standard step test fell significantly.4. Body composition was assessed weekly by40K counting and skinfold thickness measurements, in addition to2H2dilution at the beginning and end of the study. Fat-free mass was apparently gained in the early phases of the study, but there was lack of agreement between the different methods of assessing body composition. Changes in body-weight were not significant.5. Basal metabolic rate (BMR), overnight metabolic rate (OMR) and sleeping metabolic rate (SMR) were measured on three occasions: in the control period, and the beginning and end of the training periods. Average BMR in the control period was 5·91 (se 0·39) MJ/24 h and was not changed with activity. There were no changes in OMR (5·71 (se 0·27) MJ/24 h in the control) nor in SMR (5·18 (se 027) MJ/24 h in the control), nor in BMR, OMR or SMR when expressed per kg body-weight, or per kg fat-free mass.6. These results do not support the suggestion that there is a sustained increase in BMR following exercise that can usefully assist in weight-loss programmes.

scholarly journals Body composition and basal metabolic rate in systemic lupus erythematosus patients

2017 ◽  
Vol 39 (2) ◽  
pp. 99-102 ◽  
Author(s):  
Z. Shamekhi ◽  
Z. Habibagahi ◽  
M. Ekramzadeh ◽  
Ata Ghadiri ◽  
F. Namjoyan ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Body Composition ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Lupus Erythematosus ◽  
Systemic Lupus

scholarly journals Cardiorespiratory Fitness and Body Composition in Postmenopausal Women

2014 ◽  
Vol 43 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Helena Moreira ◽  
Betânia Passos ◽  
Josiane Rocha ◽  
Vivianne Reis ◽  
André Carneiro ◽  
...  
Keyword(s):  
Body Composition ◽  
Oxygen Uptake ◽  
Metabolic Rate ◽  
Postmenopausal Women ◽  
Aerobic Fitness ◽  
Basal Metabolic Rate ◽  
Visceral Fat ◽  
Central Adiposity ◽  
Visceral Fat Area ◽  
The Relationship

Abstract The object of the study was to analyze the relationship between aerobic fitness and body composition in postmenopausal women. We hypothesized that postmenopausal women that had higher adiposity had lower cardiorespiratory capacity, regardless of the characteristics of menopause. The sample included 208 women (57.57 ± 6.62 years), whose body composition and the basal metabolic rate were evaluated by octopolar bioimpedance (InBody 720) and the oxygen uptake by the modified Bruce protocol. Most of the sample showed obesity and a high visceral fat area. The visceral fat area and the basal metabolic rate explained 30% of the variation of oxygen uptake, regardless of age, time, nature or hormone therapy. The values of the latter variables were reduced in the presence of high central adiposity (-6.16 ml/kg/min) and the basal metabolic rate of less than 1238 kcal/day (-0.18 ml/kg/min). The women with oxygen uptake above 30.94 ml/kg/min showed lower values of total and central adiposity when compared with other groups. With an increase of aerobic fitness, there was a growing tendency of the average values of the soft lean mass index, with differences between the groups low-high and moderate-high. These results suggest worsening of the cardiorespiratory condition with an increase of central adiposity and a decrease of the BMR, regardless of age and menopause characteristics.

Effect of age on body composition and resting metabolic rate

1990 ◽  
Vol 259 (2) ◽  
pp. E233-E238 ◽  
Author(s):  
N. K. Fukagawa ◽  
L. G. Bandini ◽  
J. B. Young
Keyword(s):  
Body Composition ◽  
Metabolic Rate ◽  
Isotope Dilution ◽  
Resting Metabolic Rate ◽  
Bioelectrical Impedance ◽  
Impedance Analysis ◽  
Open Circuit ◽  
Fat Free Mass ◽  
The Difference ◽  
Old Men

The relationship between fat-free mass (FFM) and resting metabolic rate (RMR) was compared in young men (n = 24; age 18-33 yr), old men (n = 24; 69-89 yr), and old women (n = 20; 67-75 yr). Body composition was assessed using anthropometry, bioelectrical impedance analysis (BIA), and isotope dilution with 18O-labeled water. RMR was measured at least twice using an open-circuit indirect calorimetry system with a ventilated hood. The results indicate that the different methods for assessing body composition vary substantially and should not be used interchangeably. Anthropometry was not adequate to assess group differences in body fatness, although skinfold measures may be appropriate for within-group comparisons. BIA correlated well with the isotope-dilution technique and may be a useful measure of FFM. Finally, RMR was lower in the old men than the young (1.04 +/- 0.02 vs. 1.24 +/- 0.03 kcal/min, P less than 0.001) and remained lower even when adjusted for FFM estimated by isotope dilution (P less than 0.001). RMR in the women was also lower (0.84 +/- 0.02 kcal/min), but in contrast to the difference between young and old men, RMR adjusted for FFM did not differ (P = 0.16) between old men and women. Therefore, it is clear that differences in FFM cannot fully account for the lower RMR in the old, suggesting that aging is associated with an alteration in tissue energy metabolism.

The standard energetics of mammalian carnivores: Felidae and Hyaenidae

2000 ◽  
Vol 78 (12) ◽  
pp. 2227-2239 ◽  
Author(s):  
Brian K McNab
Keyword(s):  
Energy Expenditure ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Body Temperatures ◽  
Basal Rate ◽  
The Family ◽  
Small Muscle ◽  
Arboreal Habit ◽  
High Basal Metabolic Rate ◽  
Low Rate

Data concerning the energy expenditure of nine species in the family Felidae and one species in the family Hyaenidae are presented, all of which were obtained under standard conditions. An examination of basal rates of metabolism in these felids and in two species reported in the literature indicates that basal rate is primarily correlated with body mass; of these species, nine have a high basal metabolic rate by general mammalian standards, the two exceptions being the margay and jaguarundi. The low basal metabolic rate of the margay may be related to its arboreal habit in association with small muscle mass, but the reason for the low rate in the jaguarundi is unknown. The omnivorous striped hyaena and termitivorous aardwolf have typical mammalian basal rates. Felids that weigh less than 7 kg have slightly low minimal thermal conductances relative to mammals generally; larger species have high conductances. Felids have slightly high body temperatures.

Resting Metabolic Rate and Thermic Effect of a Meal in Low- and Adequate-Energy Intake Male Endurance Athletes

1993 ◽  
Vol 3 (2) ◽  
pp. 194-206 ◽  
Author(s):  
Janice Thompson ◽  
Melinda M. Manore ◽  
James S. Skinner
Keyword(s):  
Metabolic Rate ◽  
Energy Intake ◽  
Weight Maintenance ◽  
Resting Metabolic Rate ◽  
Activity Level ◽  
Low Energy ◽  
Fat Free Mass ◽  
Endurance Athletes ◽  
Male Athletes ◽  
Thermic Effect

The resting metabolic rate (RMR) and thermic effect of a meal (TEM) were determined in 13 low-energy intake (LOW) and 11 adequate-energy intake (ADQ) male endurance athletes. The LOW athletes reported eating 1,490 kcal·day-1less than the ADQ group, while the activity level of both groups was similar. Despite these differences, both groups had a similar fat-free mass (FFM) and had been weight stable for at least 2 years. The RMR was significantly lower (p<0.05) in the LOW group compared to the values of the ADQ group (1.19 vs. 1.29 kcal·FFM-1·hr-l, respectively); this difference represents a lower resting expenditure of 158 kcal·day-1. No differences were found in TEM between the two groups. These results suggest that a lower RMR is one mechanism that contributes to weight maintenance in a group of low- versus adequate-energy intake male athletes.

Survival and body composition of normal and hypothalamic obese rats in acute starvation

1960 ◽  
Vol 198 (4) ◽  
pp. 757-761 ◽  
Author(s):  
D. G. Montemurro ◽  
J. A. F. Stevenson
Keyword(s):  
Body Composition ◽  
Metabolic Rate ◽  
Fat Free Mass ◽  
Prolonged Survival ◽  
Metabolic Rates ◽  
Total Water ◽  
Fed State ◽  
Normal Limits ◽  
Obese Rats ◽  
Acute Starvation

Female hypothalamic obese rats contained approximately 240% more fat, 10% more protein and 18% more water than did their controls, however ratio total water/fat-free mass remained within normal limits in this frank obesity. At death from starvation, the water, fat-free mass and protein compartments were significantly smaller than those of the controls, the fat compartments were not significantly different. Control rats survived starvation for 16.4 ± 1.3 days, obese rats 42.7 ± 1.8 days ( P < .001). The resting metabolic rates of normal and obese rats in the fed state were not different and both fell gradually throughout starvation. The prolonged survival of obese rats is due primarily to their excess reserve of energy and not to alterations in metabolic rate. As in the fed state, hypothalamic obese rats drank less water during starvation than did the controls. This is thought to result from direct interference with hypothalamic elements regulating thirst and the spontaneous consumption of water.

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