scholarly journals The Effect of Regular Physical Activity on Muscle and Adipose Tissue in Premenopausal Women

2021 ◽  
Vol 11 (18) ◽  
pp. 8655
Author(s):  
Petr Kutac ◽  
Marek Buzga ◽  
Steriani Elavsky ◽  
Vaclav Bunc ◽  
Daniel Jandacka ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Premenopausal Women ◽  
Regular Physical Activity ◽  
Fat Free Mass ◽  
Practical Significance ◽  
Full Time ◽  
Positive Effects ◽  
The Relationship ◽  
One Way Anova

Regular physical activity (PA) plays an important role in the prevention of several noninfectious chronic diseases, partly due to its positive effects on body composition. The relationship between the amount of weekly PA and body composition in premenopausal women, however, remains unclear. The objective of the study is to assess the relationship between body composition and the volume of PA in full-time employed premenopausal women. The study included 136 women (aged 41.07 ± 2.77 years). The women were divided into tertiles (T1–T3) according to the level of total reported weekly PA. T1 were women with the lowest volume of PA, T2 were women with a medium volume, and T3 were women with the highest PA volume. DXA was used to measure body mass (BM), body fat (BF), visceral fat (VFA), and fat-free mass (FFM). For the comparison of means, we used one-way ANOVA and a t test. Practical significance was verified with effect of size. Significant differences were found between women in T1 vs. T2 and T1 vs. T3. When compared with T2, T1 women had a higher BM (+6.10 kg), BF (+5.98 kg), BF (+5.42%), and VF (+17.49 cm2). When compared with T3, T1 women had a higher BM (+5.99 kg), BF (+6.42 kg), BF (+5.89%), and VFA (+20.71 cm2). We can conclude that a higher volume of weekly PA is associated with lower BF, but appears to have no effect on FFM.

scholarly journals MOSH Syndrome (Male Obesity Secondary Hypogonadism): Clinical Assessment and Possible Therapeutic Approaches

2018 ◽  
Author(s):  
Antonino De Lorenzo ◽  
Annalisa Noce ◽  
Eleonora Moriconi ◽  
Tiziana Rampello ◽  
Giulia Marrone ◽  
...  
Keyword(s):  
Physical Activity ◽  
Weight Loss ◽  
Body Composition ◽  
Fat Mass ◽  
Food Addiction ◽  
Lifestyle Changes ◽  
Fat Free Mass ◽  
Positive Effects ◽  
Total Fat ◽  
Secondary Hypogonadism

Male obesity secondary hypogonadism (MOSH) impairs fertility, sexual function, bone mineralization, fat metabolism, cognitive function, deteriorates muscle mass and alters body composition. The aim of this pilot study was to evaluate the effect of dietary intervention and physical activity on the MOSH patient’s hormonal profile after a 10% weight loss compared to baseline. Fourteen male patients were enrolled. Hormonal, lipid, glycemic profiles and body composition were determined at baseline and after a 10% weight loss. Aging Male Symptoms Scale (AMS) and Yale Food Addiction Scale (YFAS) were administered to patients in order to investigate hypogonadal symptoms and food addiction. Compared to baseline, a significant increase of Total Testosterone (TT) (300.2 ± 79.5 ng/dl vs 408.3 ± 125.9, p = 0.002, 95% CI 26.8; 167.7) and a reduction of 17-Beta Estradiol level (48.3 ± 14.9 pg/mL vs 39.2 ± 15.2, p = 0.049, 95% CI 3.1; 0.0) were observed. Total Fat Mass (FM) percentage, android and gynoid fat mass percentage (39.2 ± 6.4% vs 36.2 ± 5.8%, p = 0.0001, 95% CI 22.5; 62.3; 51.5 ± 6.8% vs 47.6 ± 6.8%, p = 0.001, 95% CI 0.6; 1.8, vs 39.2 ± 6.2% vs 36.5 ± 6.3% p= 0.0001, 95% CI 0.9; 2.0 respectively) were significantly decreased after nutritional intervention. In addition, total Fat Free Mass (FFM) in kg was significantly reduced after 10% weight loss (62.3± 2.8 kg vs 60.3± 7.7 kg, p = 0.002, 95% CI 45.0; 93.0). Lifestyle changes, specifically dietotherapy and physical activity, induce positive effects on hypogonadism due to obesity.

Exploring privacy and trust for employee monitoring

2015 ◽  
Vol 115 (1) ◽  
pp. 88-106 ◽  
Author(s):  
Shuchih Ernest Chang ◽  
Anne Yenching Liu ◽  
Sungmin Lin
Keyword(s):  
Organizational Culture ◽  
Employee Performance ◽  
Full Time ◽  
Negative Effects ◽  
Content Type ◽  
Positive Effects ◽  
Study Results ◽  
Employee Monitoring ◽  
Communication Privacy ◽  
The Relationship

Purpose – The purpose of this paper is to evaluate privacy boundaries and explores employees’ reactions in employee monitoring. Design/methodology/approach – The research used the metaphor of boundary turbulence in the Communication Privacy Management (CPM) theory to demonstrate the psychological effect on employees. The model comprised organizational culture, CPM, trust, and employee performance in employee monitoring to further investigated the influence exerted by organizational culture and how employees viewed their trust within the organization when implementing employee monitoring. Variables were measured empirically by administrating questionnaires to full-time employees in organizations that currently practice employee monitoring. Findings – The findings showed that a control-oriented organizational culture raised communication privacy turbulence in CPM. The communication privacy turbulence in CPM mostly had negative effects on trust in employee monitoring policy, but not on trust in employee monitoring members. Both trust in employee monitoring policy and trust in employee monitoring members had positive effects on employee commitment and compliance to employee monitoring. Research limitations/implications – This research applied the CPM theory in workplace privacy to explore the relationship between employees’ privacy and trust. The results provide insights of why employees feel psychological resistance when they are forced to accept the practice of employee monitoring. In addition, this study explored the relationship between CPM and trust, and offer support and verification to prior studies. Practical implications – For practitioners, the findings help organizations to improve the performance of their employees and to design a more effective environment for employee monitoring. Originality/value – A research model was proposed to study the impacts of CPM on employee monitoring, after a broad survey on related researches. The validated model and its corresponding study results can be referenced by organization managers and decision makers to make favorable tactics for achieving their goals of implementing employee monitoring.

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.

Examining the Relationship Between Physical Activity Intensity and Adiposity in Young Women

2015 ◽  
Vol 12 (6) ◽  
pp. 764-769 ◽  
Author(s):  
Bruce W. Bailey ◽  
Pamela Borup ◽  
James D. LeCheminant ◽  
Larry A. Tucker ◽  
Jacob Bromley
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Body Fat ◽  
Young Women ◽  
Physical Activity Intensity ◽  
Fat Percentage ◽  
Bod Pod ◽  
Activity Intensity ◽  
Objectively Measured ◽  
The Relationship

Background:The purpose of this study was to assess the relationship between intensity of physical activity (PA) and body composition in 343 young women.Methods:Physical activity was objectively measured using accelerometers worn for 7 days in women 17 to 25 years. Body composition was assessed using the BOD POD.Results:Young women who spent less than 30 minutes a week performing vigorous PA had significantly higher body fat percentages than women who performed more than 30 minutes of vigorous PA per week (F = 4.54, P = .0113). Young women who spent less than 30 minutes per day in moderate to vigorous PA (MVPA) had significantly higher body fat percentages than those who obtained more than 30 minutes per day of MVPA (F = 7.47, P = .0066). Accumulating more than 90 minutes of MVPA per day was associated with the lowest percent body fat. For every 10 minutes spent in MVPA per day, the odds of having a body fat percentage above 32% decreased by 29% (P = .0002).Conclusion:Vigorous PA and MVPA are associated with lower adiposity. Young women should be encouraged to accumulate at least 30 minutes of MVPA per day, however getting more than 90 minutes a day is predictive of even lower levels of adiposity.

scholarly journals The experience of life events and body composition in middle childhood: a population-based study

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Ivonne P. M. Derks ◽  
Sara Hannani ◽  
Florianne O. L. Vehmeijer ◽  
Henning Tiemeier ◽  
Pauline W. Jansen
Keyword(s):  
Body Composition ◽  
Life Events ◽  
Middle Childhood ◽  
Population Based ◽  
Fat Free Mass ◽  
Structured Interviews ◽  
Population Based Study ◽  
Wide Range ◽  
The Relationship ◽  
Dutch Children

AbstractWhile studies suggest potential influences of childhood adversities on obesity development in adulthood, less is known about the short-term association in children. We examined the association between a wide range of life events experienced in the first ten years of life (including maltreatment and milder adversities) and body composition in 5333 ten-year old Dutch children. In structured interviews, mothers retrospectively reported on their children’s experience of 24 events. BMI was calculated, and fat mass index and fat free mass index were determined by dual-x-ray absorptiometry scanning. Linear regressions showed that, unadjusted, a higher number of life events was associated with higher BMI and body composition. However, associations attenuated to non-significance after adjustment for covariates. Similar findings were observed for maltreatment and milder life events. Thus, the number of experienced life events was not associated with body composition in middle childhood. Rather, other factors, like socioeconomic conditions, accounted for the relationship between life events and weight development in children.

Energy Expenditure and Body Fat Distribution in Mohawk Children

PEDIATRICS ◽  
1995 ◽  
Vol 95 (1) ◽  
pp. 89-95
Author(s):  
Michael I. Goran ◽  
Mary Kaskoun ◽  
Rachel Johnson ◽  
Charlene Martinez ◽  
Benson Kelly ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Native Americans ◽  
Energy Expenditure ◽  
Total Energy ◽  
Body Fat ◽  
Resting Energy Expenditure ◽  
Fat Distribution ◽  
Total Energy Expenditure ◽  
Fat Free Mass

Objective. Epidemiologic studies suggest that Native Americans, including the Mohawk people, have a high prevalence of obesity, diabetes, and cardiovascular risk. However, current information on alterations in related variables such as energy metabolism and body composition in Native Americans is almost exclusively limited to already obese Pima adults living in the Southwest. The aim of this study was to characterize energy metabolism and body composition in young Mohawk children (17 girls, 11 boys; aged 4 to 7 years) as compared to Caucasian children (36 girls, 34 boys; aged 4 to 7 years). Total energy expenditure was measured by doubly labeled water, postprandial resting energy expenditure by indirect calorimetry, and activity energy expenditure was derived from the difference between total and resting energy expenditure. Fat and fat free mass were estimated from bioelectrical resistance, and body fat distribution was estimated from skinfolds and circumferences. Results. There were no significant effects of ethnic background or sex on body weight, height, or body mass index. Fat free mass was significantly higher in boys and fat mass was significantly higher in girls, with no effect of ethnic background. Chest skinfold thickness, the ratio of trunk skinfolds:extremity skinfolds, and the waist:hip ratio were significantly higher in Mohawk children by 2.5 mm, 0.09 units, and 0.03 units, respectively, independent of sex and fat mass. Total energy expenditure was significantly higher in Mohawk children compared to Caucasian (100 kcal/day in girls, 150 kcal/day in boys), independent of fat free mass and sex, due to a significantly higher physical activity-related energy expenditure. Conclusion. These data suggest that: 1) body fat is more centrally distributed in Mohawk relative to Caucasian children, and this effect is independent of sex and body fat content; 2) Mohawk children have a greater total energy expenditure than Caucasian children, independent of fat free mass, due to greater physical activity-related energy expenditure.

scholarly journals The Relationship Between Adherence to the Mediterranean Diet and Body Composition in Nutrition and Dietetic Students

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Servet Madencioğlu ◽  
Sevinç Yücecan
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Waist Circumference ◽  
Mediterranean Diet ◽  
Near East ◽  
Female Students ◽  
Significant Difference ◽  
The Mediterranean ◽  
Nutrition And Dietetics ◽  
The Relationship

AbstractIntroductionThe determination of level of adherence to the Mediterranean diet (MD) in young adults has been investigated in countries situated near the Mediterranean region generally. The main purpose of this study were to determine differences in body composition by gender and level of adherence to the MD and to determine the relationship between body composition and level of adherence to the MD in Nutrition and Dietetics students at Near East University in Cyprus.Materials and MethodsThe study was conducted on 126 Nutrition and Dietetics students, aged 18 to 32 years. MDS was calculated, and then classified into three groups: good (36–55 points), moderate (21–35 points), and poor (0–20 points). Body composition was assessed using bioelectrical impedance (BIA). Anthropometrical measurements; height (H), body weight (BW), waist circumference (WC) and hip circumference (HC) were assessed according to standardized procedures and physical activity (PA) was assessed by using International Physical Activity Questionnaire (IPAQ-short form). The study protocol was approved by the Ethics Committee at Near East University.ResultsAccording to study results 31.0% of students were found out to low adherence, while 69.0% of students had moderate adherence to the MD. There is no student had high adherence to the MD. There was no significant difference (p = 0.877) between the male and female students in terms of adherence to Mediterranean diet. The findings indicate that the eating habits of the Nutrition and Dietetics students, even those studying nutrition, are in need of improvement. The results show that 78.6% of students were normal and 21.4% of students were overweight and obese. Male students’ BW (p = 0.000), WC (p = 0.000) and HC (p = 0.015) were higher than females’, while female students’ fat mass (FM) (p = 0.000) was higher than males’. However, there is no significant difference between BW (p = 0.724), FM (p = 0.896), BMI (p = 0.691), WC (p = 0.632) and HC (p = 0.982) neither low adherence nor moderate adherence to the MD. Most of students minimal active according to IPAQ scores (41.2%) and there is no significant difference IPAQ score and adherence to the MD (p = 0.923).DiscussionOne of the healthiest diets worldwide is the traditional MD. Several studies have shown, that higher adherence to the MD is inversely related with BMI, waist circumference (WC) and waist-to-height ratio (WHR). Little is known of how adherence to the MD is related to body composition, especially in university students. Further large-scale studies are required to clarify the relationship between adherence to the MD and body composition

Contribution of body composition and physical activity to age-related decline in peak VO2 in men and women

1994 ◽  
Vol 77 (2) ◽  
pp. 647-652 ◽  
Author(s):  
M. J. Toth ◽  
A. W. Gardner ◽  
P. A. Ades ◽  
E. T. Poehlman
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Fat Mass ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Fat Free Mass ◽  
Men And Women ◽  
Peak Vo2 ◽  
Age Related ◽  
Rate Of Decline

We examined the contribution of variations in body composition and leisure time physical activity to the age-related decline in peak oxygen consumption (VO2) in men and women. Healthy males 17–80 yr old (n = 378) and females 18–81 yr old (n = 224) were characterized for peak VO2 from a treadmill test to exhaustion, fat-free mass and fat mass by underwater weighing, and leisure time physical activity. Peak VO2 showed a greater absolute decline (P < 0.05) with age in males (r = -0.70, slope = -0.034 l.min-1.yr-1; P < 0.01) than in females (r = -0.78, slope = -0.028 l.min-1.yr-1; P < 0.01). After statistically controlling for differences in fat-free mass and fat mass, the decline in peak VO2 was diminished in both sexes, although a greater rate of decline persisted in males (r = -0.47, slope = -0.016 l.min-1.yr-1; P < 0.01) than in females (r = -0.39, slope = -0.009 l.min-1.yr-1; P < 0.01). We found that the addition of leisure time physical activity (independent of body composition) to the regression model further attenuated the rate of decline in males (r = -0.40, slope = -0.013 l.min-1.yr-1; P < 0.01) but did not alter the age-related decline in peak VO2 in females (r = -0.39, slope = -0.009 l.min-1.yr-1; P < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)

Determinants of insulin-stimulated glucose disposal in middle-aged, premenopausal women

2001 ◽  
Vol 281 (1) ◽  
pp. E113-E121 ◽  
Author(s):  
Michael J. Toth ◽  
Cynthia K. Sites ◽  
William T. Cefalu ◽  
Dwight E. Matthews ◽  
Eric T. Poehlman
Keyword(s):  
Physical Activity ◽  
Maximal Oxygen Consumption ◽  
Premenopausal Women ◽  
Abdominal Fat ◽  
Fat Free Mass ◽  
Thigh Muscle ◽  
Whole Body ◽  
Glucose Disposal ◽  
Statistical Control ◽  
Regional Adiposity

Controversy exists regarding the relative importance of adiposity, physical fitness, and physical activity in the regulation of insulin-stimulated glucose disposal. To address this issue, we measured insulin-stimulated glucose disposal [mg · kg fat-free mass (FFM)−1 · min−1; oxidative and nonoxidative components] in 45 nondiabetic, nonobese, premenopausal women (mean ± SD; 47 ± 3 yr) by use of hyperinsulinemic euglycemic clamp (40 mU · m−2 · min−1) and [6,6-2H2]glucose dilution techniques. We also measured body composition, abdominal fat distribution, thigh muscle fat content, maximal oxygen consumption (V˙o 2 max), and physical activity energy expenditure (2H2 18O kinetics) as possible correlates of glucose disposal.V˙o 2 max was the strongest correlate of glucose disposal ( r = 0.63, P < 0.01), whereas whole body and abdominal adiposity showed modest associations (range of r values from −0.32 to −0.46, P< 0.05 to P < 0.01). A similar pattern of correlations was observed for nonoxidative glucose disposal. None of the variables measured correlated with oxidative glucose disposal. The relationship of V˙o 2 max to glucose disposal persisted after statistical control for FFM, percent body fat, and intra-abdominal fat ( r = 0.40, P < 0.01). In contrast, correlations of total and regional adiposity measures to insulin sensitivity were no longer significant after statistical adjustment for V˙o 2 max.V˙o 2 max was the only variable to enter stepwise regression models as a significant predictor of total and nonoxidative glucose disposal. Our results highlight the importance ofV˙o 2 max as a determinant of glucose disposal and suggest that it may be a stronger determinant of variation in glucose disposal than total and regional adiposity in nonobese, nondiabetic, premenopausal women.

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