Effect of Calorie Restriction on Resting Metabolic Rate and Spontaneous Physical Activity**

Obesity ◽  
2007 ◽  
Vol 15 (12) ◽  
pp. 2964-2973 ◽  
Author(s):  
Corby K. Martin ◽  
Leonie K. Heilbronn ◽  
Lilian de Jonge ◽  
James P. DeLany ◽  
Julia Volaufova ◽  
...  
Keyword(s):  
Physical Activity ◽  
Metabolic Rate ◽  
Calorie Restriction ◽  
Resting Metabolic Rate ◽  
Spontaneous Physical Activity

Metabolic effects of aminophylline in weanling rats

1990 ◽  
Vol 258 (1) ◽  
pp. R193-R197
Author(s):  
M. G. Vonlanthen ◽  
R. J. McCarter ◽  
D. T. Casto
Keyword(s):  
Physical Activity ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Physiological Effect ◽  
Metabolic Effects ◽  
Fischer 344 Rats ◽  
Fischer 344 ◽  
Weanling Rats ◽  
Spontaneous Physical Activity ◽  
Increased Activity

Methylxanthines are commonly used to treat asthma and apnea in infants and children. A physiological effect of these compounds is an elevation of the metabolic rate, but the mechanism of this increase is unclear. We have investigated the hypothesis that this elevation of metabolic rate in young animals is in part due to increased physical activity. Metabolic rate and spontaneous physical activity of weanling Fischer 344 rats were measured before and during 2 days of aminophylline administration. Our results show increased metabolic rate measured over 23 h, concomitant with increased activity during treatment. Resting metabolic rate was not elevated. The results suggest that increased physical activity plays a major role in increasing metabolic rate during aminophylline treatment. Metabolic rate returned to control levels on the 2nd day of treatment despite a smaller but still significant elevation in physical activity. This suggests development of tolerance to the effects of aminophylline on activity together with adaptation to the metabolic effects of this drug.

scholarly journals ENERGY EXPENDITURE AND PHYSICAL ACTIVITY AMONG OLDER PARTICIPANTS FROM THE MULTICENTER AIDS COHORT STUDY (MACS)

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S549-S549
Author(s):  
Jennifer A Schrack ◽  
Todd T Brown ◽  
Joseph B Margolick
Keyword(s):  
Physical Activity ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Functional Decline ◽  
Time Of Day ◽  
Energy Utilization ◽  
Hiv Viral Load ◽  
Cross Sectional ◽  
And Function ◽  
Lower Physical Activity

Abstract Energy utilization becomes more inefficient with age and is linked to low physical activity and functional decline. Persons aging with HIV exhibit accelerated functional decline, but the effect of chronic HIV infection on energy utilization and free-living physical activity remains unclear. We investigated cross-sectional associations between age and: resting metabolic rate, peak walking energy (VO2), and 7-day physical activity by accelerometry in 100 men in the MACS (age: 60.8+/-6.8 years, 35% black, 46.1% HIV+, 94% virally suppressed). In multivariable regression models adjusted for age, BMI, race, chronic conditions, and HIV viral load, HIV+ men had a higher resting metabolic rate (β=103.2 kcals/day, p=0.03) and lower peak walking VO2 (β=-1.8 ml/kg/min, p<0.02) than HIV- men. Moreover, HIV+ men demonstrated lower physical activity, overall and by time of day (p<0.05). These results suggest that energy utilization differs by HIV serostatus, which may contribute to lower physical activity and function with aging.

Determination of total energy expenditure, resting metabolic rate and physical activity in lean and overweight people

1997 ◽  
Vol 36 (4) ◽  
pp. 310-312 ◽  
Author(s):  
F. Thielecke ◽  
J. Möseneder ◽  
A. Kroke ◽  
K. Klipstein-Grobusch ◽  
H. Boeing ◽  
...  
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Metabolic Rate ◽  
Total Energy ◽  
Resting Metabolic Rate ◽  
Total Energy Expenditure ◽  
Overweight People

scholarly journals Dietary Intake and Energy Expenditure in Breast Cancer Survivors: A Review

Nutrients ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 3394
Author(s):  
Sarah A. Purcell ◽  
Ryan J. Marker ◽  
Marc-Andre Cornier ◽  
Edward L. Melanson
Keyword(s):  
Breast Cancer ◽  
Physical Activity ◽  
Energy Balance ◽  
Energy Expenditure ◽  
Dietary Intake ◽  
Metabolic Rate ◽  
Cancer Survivors ◽  
Breast Cancer Survivors ◽  
Resting Metabolic Rate ◽  
Fat Free Mass

Many breast cancer survivors (BCS) gain fat mass and lose fat-free mass during treatment (chemotherapy, radiation, surgery) and estrogen suppression therapy, which increases the risk of developing comorbidities. Whether these body composition alterations are a result of changes in dietary intake, energy expenditure, or both is unclear. Thus, we reviewed studies that have measured components of energy balance in BCS who have completed treatment. Longitudinal studies suggest that BCS reduce self-reported energy intake and increase fruit and vegetable consumption. Although some evidence suggests that resting metabolic rate is higher in BCS than in age-matched controls, no study has measured total daily energy expenditure (TDEE) in this population. Whether physical activity levels are altered in BCS is unclear, but evidence suggests that light-intensity physical activity is lower in BCS compared to age-matched controls. We also discuss the mechanisms through which estrogen suppression may impact energy balance and develop a theoretical framework of dietary intake and TDEE interactions in BCS. Preclinical and human experimental studies indicate that estrogen suppression likely elicits increased energy intake and decreased TDEE, although this has not been systematically investigated in BCS specifically. Estrogen suppression may modulate energy balance via alterations in appetite, fat-free mass, resting metabolic rate, and physical activity. There are several potential areas for future mechanistic energetic research in BCS (e.g., characterizing predictors of intervention response, appetite, dynamic changes in energy balance, and differences in cancer sub-types) that would ultimately support the development of more targeted and personalized behavioral interventions.

scholarly journals The Energy Expenditure of Free-Living Physical Activities in Primary Schoolchildren

2016 ◽  
Vol 13 (s1) ◽  
pp. S57-S61 ◽  
Author(s):  
Alison L. Innerd ◽  
Liane B. Azevedo
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Metabolic Rate ◽  
Indirect Calorimetry ◽  
Resting Metabolic Rate ◽  
Physical Activities ◽  
Free Living ◽  
Metabolic Equivalent ◽  
Primary Schoolchildren ◽  
Vigorous Intensity

Background:The aim of this study is to establish the energy expenditure (EE) of a range of child-relevant activities and to compare different methods of estimating activity MET.Methods:27 children (17 boys) aged 9 to 11 years participated. Participants were randomly assigned to 1 of 2 routines of 6 activities ranging from sedentary to vigorous intensity. Indirect calorimetry was used to estimate resting and physical activity EE. Activity metabolic equivalent (MET) was determined using individual resting metabolic rate (RMR), the Harrell-MET and the Schofield equation.Results:Activity EE ranges from 123.7± 35.7 J/min/Kg (playing cards) to 823.1 ± 177.8 J/min/kg (basketball). Individual RMR, the Harrell-MET and the Schofield equation MET prediction were relatively similar at light and moderate but not at vigorous intensity. Schofield equation provided a better comparison with the Compendium of Energy Expenditure for Youth.Conclusion:This information might be advantageous to support the development of a new Compendium of Energy Expenditure for Youth.

scholarly journals Significance of variation in basal metabolic rate in laboratory mice for translational experiments

2021 ◽  
Author(s):  
Paweł Brzęk ◽  
Andrzej Gębczyński ◽  
Piotr Selewestruk ◽  
Aneta Książek ◽  
Julita Sadowska ◽  
...  
Keyword(s):  
Physical Activity ◽  
Metabolic Rate ◽  
Basal Metabolic Rate ◽  
Activity Level ◽  
Laboratory Mice ◽  
Ambient Temperatures ◽  
Thermoneutral Zone ◽  
Significant Difference ◽  
The Mean ◽  
Spontaneous Physical Activity

AbstractThe basal metabolic rate (BMR) accounts for 60–70% of the daily energy expenditure (DEE) in sedentary humans and at least 50% of the DEE in laboratory mice in the thermoneutral zone. Surprisingly, however, the significance of the variation in the BMR is largely overlooked in translational research using such indices as physical activity level (PAL), i.e., the ratio of DEE/BMR. In particular, it is unclear whether emulation of human PAL in mouse models should be carried out within or below the thermoneutral zone. It is also unclear whether physical activity within the thermoneutral zone is limited by the capacity to dissipate heat generated by exercise and obligatory metabolic processes contributing to BMR. We measured PAL and spontaneous physical activity (SPA) in laboratory mice from two lines, divergently selected towards either high or low level of BMR, and acclimated to 30 °C (i.e., the thermoneutral zone), 23 or 4 °C. The mean PAL did not differ between both lines in the mice acclimated to 30 °C but became significantly higher in the low BMR mouse line at the lower ambient temperatures. Acclimation to 30 °C reduced the mean locomotor activity but did not affect the significant difference observed between the selected lines. We conclude that carrying out experiments within the thermoneutral zone can increase the consistency of translational studies aimed at the emulation of human energetics, without affecting the variation in physical activity correlated with BMR.

Comparison of Association Between Physical Activity and Resting Metabolic Rate on Korean Young and Middle‐Aged Adults

2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
HYEJUNG HWANG ◽  
Wonsang Jung ◽  
Jisu Kim ◽  
Hun-young Park ◽  
Kiwon Lim
Keyword(s):  
Physical Activity ◽  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Middle Aged ◽  
Middle Aged Adults
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