scholarly journals Energy metabolism in sedentary and active 49- to 70-yr-old women

1998 ◽  
Vol 84 (4) ◽  
pp. 1333-1340 ◽  
Author(s):  
R. T. Withers ◽  
D. A. Smith ◽  
R. C. Tucker ◽  
M. Brinkman ◽  
D. G. Clark
Keyword(s):  
Energy Expenditure ◽  
Resting Metabolic Rate ◽  
Fat Free Mass ◽  
Analysis Of Covariance ◽  
Statistical Control ◽  
Cross Sectional ◽  
Energy Expenditures ◽  
Significant Difference ◽  
Living State

This study examined differences between long-term exercising (LE) and long-term nonexercising (LNE) women [ n = 24; age 56.4 ± 6.2 (SD) yr] for resting metabolic rate (RMR) and energy expenditure in the free-living state by using doubly labeled water (DLW). There was a statistically significant difference ( P = 0.0002) between the 12 LE (94.85 ± 8.44 kJ ⋅ kg−1 ⋅ day−1) and 12 LNE (81.16 ± 6.62 kJ ⋅ kg−1 ⋅ day−1) for RMR, but this difference was only marginally significant ( P = 0.06) when the data (MJ/day) were subjected to an analysis of covariance with fat-free mass as the covariate. The DLW data indicated that the eight most active LE (12.99 ± 3.58 MJ/day) expended significantly ( P = 0.01) more energy than did the eight least active LNE (9.30 ± 1.15 MJ/day). Energy expenditures ranged from 7.64 to 18.15 MJ/day, but there was no difference ( P = 0.96) between the LE and LNE in energy expenditure during activity that was not designed to either improve or maintain fitness. These cross-sectional data on 49- to 70-yr-old women therefore suggest that 1) aerobic-type training results in a greater RMR per unit of body mass and also when statistical control is exerted for the effect of the metabolically active fat-free mass, 2) there is a large range in the energy intake necessary to maintain energy balance, and 3) aerobic training does not result in a compensatory reduction in energy expenditure during the remainder of the day.

Relationship between aerobic fitness level and daily energy expenditure in weight-stable humans

1992 ◽  
Vol 263 (1) ◽  
pp. E121-E128 ◽  
Author(s):  
T. A. Sharp ◽  
G. W. Reed ◽  
M. Sun ◽  
N. N. Abumrad ◽  
J. O. Hill
Keyword(s):  
Body Composition ◽  
Energy Expenditure ◽  
Aerobic Fitness ◽  
Resting Metabolic Rate ◽  
Fat Free Mass ◽  
Daily Energy Expenditure ◽  
Cross Sectional ◽  
Fitness Level ◽  
Daily Energy ◽  
The Relationship

The relationship between exercise and energy expenditure is unclear, with some suggestions that exercise leads to increased energy expenditure over and beyond the increase due to the exercise itself. In this cross-sectional study, we examined the relationships among aerobic fitness level, body composition, and total daily energy expenditure in 78 subjects. Daily energy expenditure (determined in a whole room calorimeter) was significantly correlated with both fat-free mass (FFM) and aerobic fitness (estimated from maximum aerobic capacity or VO2max). However, multiple-regression analysis demonstrated that, after accounting for FFM, VO2max did not explain a significant amount of the remaining variation in energy expenditure. In addition, the relationship between resting metabolic rate and both FFM and VO2max was evaluated using data from 214 weight-stable subjects analyzed retrospectively. The results were identical with the results obtained from the 78 subjects in that VO2max did not have effects independent of FFM on energy expenditure. We conclude that aerobic fitness does not have a direct effect on energy expenditure. However, it may have effects that are mediated through body composition, since in both populations studied here, VO2max was positively correlated with FFM and negatively correlated with adiposity.

scholarly journals Examination of Energy Balance, Eating Disorder Risk, and Pathogenic Behaviors among Athletic Trainers

2020 ◽  
Author(s):  
Toni M. Torres-McGehee ◽  
Dawn M. Emerson ◽  
Erin M. Moore ◽  
Stacy Walker ◽  
Kelly Pritchett ◽  
...  
Keyword(s):  
Eating Disorder ◽  
Energy Balance ◽  
Energy Expenditure ◽  
Athletic Trainers ◽  
Resting Metabolic Rate ◽  
Full Time ◽  
Eating Disorder Inventory ◽  
Job Status ◽  
Cross Sectional ◽  
Significant Difference

Abstract CONTEXT: Research exists on energy balance (EB) and eating disorder (ED) risk in physically active populations and occupations by settings, but EB and ED in athletic trainers (ATs) has not been investigated. OBJECTIVE: To assess ATs' energy needs, including macronutrient profile, and to examine ED risk and pathogenic behavior between sex (males, females), job status (part-time=PT-AT; full-time=FT-AT) and setting (college/university, high school, non-traditional). DESIGN: Cross-sectional and descriptive. SETTING: Free-living in job settings. PARTICIPANT: ATs (n=46; males PT-AT n=12, males FT-AT n=11; females PT-AT n=11, female FT-AT n=12) in Southeastern United States. MAIN OUTCOME MEASURES: Anthropometric measurements (age, height, weight, body composition), resting metabolic rate (RMR), energy intake (EI), total daily energy expenditure (TDEE), exercise energy expenditure (EEE), EB, macronutrients (carbohydrates, protein, fats), Eating Disorder Inventory-3, and the Eating Disorder Inventory-3 Symptom Checklist. RESULTS: Majority (84.8%, n=39) had ED risk, with 26.1% (n=12) engaging in at least 1 pathogenic behavior, 50% (n=23) in 2 pathogenic behaviors, and 10.8% (n=5) in more than 2 pathogenic behaviors. 82.6% of ATs (n=38) presented in negative EB (EI<TDEE). Significant differences were found for sex and job status for RMR (F(1,45)=16.48, P=.001), EI (F(1,45)=12.01, P=.001), TDEE (F(1,45)=40.36, P<.001) and EEE (F(1,38)=5.353, P=.026). No significant differences were found in EB, sex and job status (F(1.45)=1.751, P=.193); Chi-squared analysis revealed no significant differences between ATs' sex and EB [χ2(1,46)=0.0, P=1.00] and job status and EB χ2(1,46) = 2.42, P= 0.120]. No significant difference found between Daily Reference Intakes recommendations for all macronutrients and sex or job status. CONCLUSIONS: Athletic trainers experience negative EB, similar to other high-demand occupational professions. Regardless of sex or job status, ATs have a high ED risk and participate in unhealthy pathogenic behaviors. The physical and mental concerns associated with these findings indicates a need for interventions targeted toward ATs' health behaviors.

scholarly journals No major differences in energy metabolism between matched and unmatched groups of ‘large-eating’ and ‘small-eating’ men

1993 ◽  
Vol 70 (2) ◽  
pp. 393-406 ◽  
Author(s):  
Dallas Clark ◽  
Frank Tomas ◽  
Robert T. Withers ◽  
Sally D. Neville ◽  
Stephen R. Nolan ◽  
...  
Keyword(s):  
Energy Expenditure ◽  
Resting Metabolic Rate ◽  
Normal Weight ◽  
Fat Free Mass ◽  
Daily Activities ◽  
Energy Requirements ◽  
Energy Expenditures ◽  
Thermic Effect Of Food ◽  
Effect Of Food ◽  
Thermic Effect

Rates of energy expenditure (J/kg fat-free mass (FFM) per min) in normal weight, ‘small-eating’ men were compared with those obtained for normal weight (n 8) and underweight (n 5) ‘large-eating’ men. For the matched groups of ‘large-’ and ‘small-eaters’ there were no differences in resting metabolic rate (RMR) measurements but during controlled daily activities there was a small but significant increase (P < 0.05) in energy expenditure in the ‘large-eaters’. These results contrast with those obtained for the unmatched groups where energy requirements were about 10 % (P < 0.01) higher in the underweight ‘large-eaters’ at rest but were not different during the more energetic (walking) activities. However, after adjustment for differences in FFM between these two groups, the resting energy expenditures of the ‘large-eaters’ (82·54 (SE 1·51) J/kg FFM per min) were similar to those of the ‘small-eaters’ (81·87 (SE 1·51) J/kg FFM per min). Oral temperatures were significantly higher in the matched (0·35–0·65°) and unmatched (0·7–0·9°) ‘large-eaters’ both at rest and during the different activities, but the thermic effect of food (50 kJ/kg FFM) was one fifth lower (not significant) in both groups of ‘large-eaters’. These results provide little evidence for any major metabolic differences between groups of ‘large-eating’ and ‘small-eating’ men.

scholarly journals The Influence of Race and Gender on Staff-Resident Interactions in Nursing Homes

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 185-185
Author(s):  
Rachel McPherson ◽  
Barbara Resnick ◽  
Elizabeth Galik
Keyword(s):  
Racial Differences ◽  
Long Term Care ◽  
Analysis Of Covariance ◽  
Positive Interactions ◽  
Term Care ◽  
Race And Gender ◽  
Significant Difference ◽  
And Gender

Abstract Communication and interactions are an integral part of care in long-term care settings. Resident variables, such as race and gender, shape communication and interaction between staff and residents. The Quality of Interactions Schedule (QuIS) was developed to measure the quality of verbal and nonverbal interactions among nursing staff and older adults initially for those in acute care and later used as well in a variety of long term care settings. A quantified measurement of the quality of interactions between residents and staff was created to quantify the QuIS. The purpose of this study was to describe the gender and racial differences in scored quality of interactions. Data for the present study was based on baseline data from the Evidence Integration Triangle for Behavioral and Psychological Symptoms of Dementia (EIT-4-BPSD) implementation study. A total of 535 residents from 55 settings were included in the analyses. An analysis of covariance was conducted to determine a difference in QuIS scores between males and females while controlling for age. The second model tested for differences in QuIS scores between blacks and whites while controlling for age and gender. There was not a statistically significant difference in QuIS scores between male and female residents. There was a significant difference in QuIS scores between those who were black versus white, such that those who were black received more positive interactions from staff than those who were white. Future work should focus on a deeper examination of resident factors and staff factors that may influence these interactions.

The Relationship of Mode and Intensity of Training on Resting Metabolic Rate in Women

2001 ◽  
Vol 11 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Heidi K. Byrne ◽  
Jack H. Wilmore
Keyword(s):  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Women Subjects ◽  
Present Cross Sectional Study ◽  
Significant Difference ◽  
Level Of Training ◽  
The Relationship ◽  
Aerobically Trained

The present cross-sectional study was designed to investigate the relationship between exercise training and resting metabolic rate (RMR). The focus of this investigation was to compare RMR in aerobically trained (AT), resistance trained (RT), and untrained (UNT) women. Subjects were also classified as highly trained (HT), moderately trained (MT), or untrained (UNT) in order to examine the relationship between RMR and level of training. Sixty-one women between the ages of 18 and 46 years volunteered to serve as subjects in this study. Each subject completed measurements of body composition, maximal oxygen uptake (V̇O2max), and two consecutive measurements of RMR. The data presented show that there was no significant difference in resting metabolic rate between resistance-trained, aerobically trained, and control subjects. However, when grouped by intensity of training, there was a trend for an increased resting metabolic rate (kcal/day) in the highly trained subjects, regardless of mode of training.

scholarly journals Influence of body composition on physical activity validation studies using doubly labeled water

2004 ◽  
Vol 96 (4) ◽  
pp. 1357-1364 ◽  
Author(s):  
Louise C. Mâsse ◽  
Janet E. Fulton ◽  
Kathleen L. Watson ◽  
Matthew T. Mahar ◽  
Michael C. Meyers ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Energy Expenditure ◽  
Body Mass ◽  
Resting Metabolic Rate ◽  
Fat Free Mass ◽  
Doubly Labeled Water ◽  
Comparison Analysis ◽  
Methods Comparison ◽  
Statistical Procedures

This study investigated the influence of two approaches (mathematical transformation and statistical procedures), used to account for body composition [body mass or fat-free mass (FFM)], on associations between two measures of physical activity and energy expenditure determined by doubly labeled water (DLW). Complete data for these analyses were available for 136 African American (44.1%) and Hispanic (55.9%) women (mean age 50 ± 7.3 yr). Total energy expenditure (TEE) by DLW was measured over 14 days. Physical activity energy expenditure (PAEE) was computed as 0.90 × TEE - resting metabolic rate. During week 2, participants wore an accelerometer for 7 consecutive days and completed a 7-day diary. Pearson's product-moment correlations and three statistical procedures (multiple regressions, partial correlations, and allometric scaling) were used to assess the effect of body composition on associations. The methods-comparison analysis was used to study the effect of body composition on agreement. The statistical procedures demonstrated that associations improved when body composition was included in the model. The accelerometer explained a small but meaningful portion of the variance in TEE and PAEE after body mass was accounted for. The methods-comparison analysis confirmed that agreement with DLW was affected by the transformation. Agreement between the diary (transformed with body mass) and TEE reflected the association that exists between body mass and TEE. These results suggest that the accelerometer and diary accounted for a small portion of TEE and PAEE. Most of the variance in DLW-measured energy expenditure was explained by body mass or FFM.

Ethnic differences in sympathetic nervous system-mediated energy expenditure

1991 ◽  
Vol 261 (6) ◽  
pp. E789-E794 ◽  
Author(s):  
M. F. Saad ◽  
S. A. Alger ◽  
F. Zurlo ◽  
J. B. Young ◽  
C. Bogardus ◽  
...  
Keyword(s):  
Nervous System ◽  
Energy Expenditure ◽  
Sympathetic Nervous System ◽  
Fat Mass ◽  
Weight Maintenance ◽  
Resting Metabolic Rate ◽  
Fat Free Mass ◽  
Beta Adrenoceptor ◽  
Sympathetic Nervous ◽  
The Impact

The impact of sympathetic nervous system (SNS) activity on energy expenditure (EE) was evaluated in nondiabetic Caucasian and Pima Indian men while on a weight-maintenance diet using two approaches as follows. 1) The relationship between 24-h EE, measured in a respiratory chamber, and 24-h urinary norepinephrine was studied in 36 Caucasians [32 +/- 8 (SD) yr, 95 +/- 41 kg, 22 +/- 13% fat] and 33 Pimas (29 +/- 6 yr, 103 +/- 28 kg, 30 +/- 9% fat). There was no difference between the two groups in 24-h EE (2,422 vs. 2,523 kcal/24 h) and in urinary norepinephrine (28 vs. 31 micrograms/24 h), even after adjusting for body size and composition. Twenty-four-hour EE correlated significantly with 24-h urinary norepinephrine in Caucasians (r = 0.78, P less than 0.001) but not in Pimas (r = 0.03), independent of fat-free mass (FFM), fat mass, and age. 2) The effect of beta-adrenoceptor blockade with propranolol (120 micrograms/kg FFM bolus and 1.2 micrograms.kg FFM-1.min-1 for 45 min) on the resting metabolic rate (RMR) was evaluated in 36 Caucasians (30 +/- 6 yr, 103 +/- 36 kg, 25 +/- 11% fat) and 32 Pimas (28 +/- 6 yr, 100 +/- 34 kg, 27 +/- 10% fat). The RMR was similar in the two groups (2,052 vs. 1,973 kcal/24 h) even after adjustment for FFM, fat mass, and age and dropped significantly after propranolol infusion in Caucasians (-3.9%, P less than 0.001) but not in Pimas (-0.8%, P = 0.07).(ABSTRACT TRUNCATED AT 250 WORDS)

scholarly journals Adherence to a Low Carbohydrate Diet may Modify Resting Metabolic Rate among Overweight and Obese Women

2020 ◽  
Author(s):  
Seyedeh Forough Sajjadi ◽  
Atieh Mirzababaei ◽  
nasim Ghodoosi ◽  
Sara Pooyan ◽  
Hana Arghavani ◽  
...  
Keyword(s):  
Metabolic Rate ◽  
Resting Metabolic Rate ◽  
Fat Free Mass ◽  
Obese Women ◽  
Carbohydrate Diet ◽  
Cross Sectional ◽  
Low Carbohydrate Diet ◽  
Low Carbohydrate ◽  
Carb Diet ◽  
Adjusted Model

Abstract Objective Resting metabolic rate (RMR) accounts for most of the daily energy expenditure. The low-carb diet attenuates decreases in RMR. This study aims to investigate the relationship between a low-carb diet and resting metabolic rate status. Methods We enrolled 304 overweight and obese women in this cross-sectional study. BMI, fat mass, fat-free mass, visceral fat, insulin level were assessed. RMR was measured using indirect calorimetry. A low carbohydrate diet score was measured using a validated semi-quantitative food frequency questionnaire (FFQ). Results Our results showed no relationship between LCDS and DNR even after adjust for confounders (Inc. RMR: OR: 0.97; 95% CI: 0.92–1.01, P = 0.20; Dec. RMR: OR: 0.97; 95% CI: 0.94-1.00, P = 0.14). Some components of LCDS had significant differences with DNR, such as carbohydrate and Dec. RMR in adjusted model (OR: 1.62; 95% CI: 0.98–1.37, P = 0.08), MUFA and Dec. RMR in adjusted model (OR: 0.48; 95% CI: 0.21–1.10, P = 0.08) and refined grain and Inc. RMR in crude model (OR: 0.87; 95% CI: 0.77–0.99, P = 0.04). Conclusion Our study showed that there is no association between a low-carb diet and RMR status but carbohydrate, MUFA, and refined grain had a significant relationship.

scholarly journals Effect of Intermittent Fasting (18/6) on Energy Expenditure, Nutritional Status, and Body Composition in Healthy Adults

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Duygu Ağagündüz ◽  
Nilüfer Acar-Tek ◽  
Osman Bozkurt
Keyword(s):  
Body Composition ◽  
Energy Expenditure ◽  
Nutritional Status ◽  
Fat Free Mass ◽  
Hydration Status ◽  
Intermittent Fasting ◽  
Activity Levels ◽  
Dietary Energy ◽  
Nutrient Intakes ◽  
Significant Difference

Objective. This study was aimed at evaluating the effect of intermittent fasting of Ramadan on resting energy expenditure (REE), body composition, and nutritional status. Methods. The study was conducted on a total of 27 adults (16 females, 11 males) who were fasting (18 h) in the Ramadan month (May 6–June 3) of 2019. REE was measured using the indirect calorimeter. Dietary energy and nutrient intakes were evaluated by 3-day food records in baseline and post-Ramadan. Body composition and some metabolic parameters were analyzed simultaneously with REE measurements. All measurements were performed two times at baseline, and post-Ramadan. Results. Body weight (−2.9% vs. −1.4%), body mass index (BMI) (−3.1% vs. −2.1%), fat-free mass (−2.7% vs. −1.4%), and hydration status were decreased in both males and females after the Ramadan fasting ( p < 0.05 ). REEs (kcal/d) of the participants were 1708.1 ± 262.50 kcal/d and 1596.5 ± 302.27 kcal/d at baseline and post-Ramadan, respectively (6.5%) ( p < 0.05 ). This decrease in REE (kcal/d) in females was greater than that in males (−8.1% vs. −4.6%). However, no statistically significant difference was found in sleep duration (h), physical activity levels, dietary energy and nutrient intakes, and blood pressures (mm Hg) of both genders compared to baseline ( p > 0.05 ). Conclusion. Intermittent circadian fasting may lead to a decreased energy expenditure and a change in fat-free mass in healthy individuals, and this effect is interpreted as gender-dependent.

scholarly journals EFFECT OF EDUCATION ON STIGMA AND DISCRIMINATION TOWARDS MENTAL ILLNESS: A MULTIVARIATE ANALYSIS OF COVARIANCE

2021 ◽  
Vol 21 (2) ◽  
pp. 329-337
Author(s):  
Mariana Tumin ◽  
Md Mizanur Rahman ◽  
Zulkifli Jantan
Keyword(s):  
Mental Illness ◽  
Mentally Ill ◽  
Education Level ◽  
Analysis Of Covariance ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Linear Effect ◽  
Stigma And Discrimination ◽  
Significant Difference ◽  
Related Stigma

People with mental illness often encounter stigma and discrimination. Mental illness-related stigma and discrimination represent the enormous obstacles that stand in the way of delivering mental health care. Little is known about stigma and discrimination toward mental illness in rural Sarawak. Thus, this study aimed to identify the stigma and discrimination towards mental illness among Sarawak’s rural community and the factors affecting them. A cross-sectional survey was carried out on 840 respondent adults aged 21 and above. A validated Community Attitude towards Mental Illness (CAMI) and Discrimination towards Mental Illness questionnaire was used for data collection. A Two-way Multiple Analysis of Covariance (Two-way MANCOVA) test was carried out to determine how much gender and education level influence stigma and discrimination towards mentally ill patients. Analysis showed that there was a statistically significant difference of standardised stigma and discrimination scores with education level (p<.001), but not with gender (p>.05). Age had a positive linear effect on both stigma and discrimination, whereas experience with mentally ill patients negatively affected both stigma and discrimination. Individuals with a lower level of education, older in age, and lesser experience in dealing with the mentally ill would have a higher level of stigma and discrimination towards mental illness. Thus, targeted and practical strategies need to be organised and implemented to combat mental illness-related stigma and discrimination.

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