Abstract MP028: Physical Activity Relates to Lower Visceral Adiposity in Children and Adolescents

Circulation ◽  
2012 ◽  
Vol 125 (suppl_10) ◽  
Author(s):  
Amanda E Staiano ◽  
Stephanie T Broyles ◽  
Alok K Gupta ◽  
Peter T Katzmarzyk
Keyword(s):  
Physical Activity ◽  
Adipose Tissue ◽  
Children And Adolescents ◽  
Body Fat ◽  
Vigorous Physical Activity ◽  
Regular Physical Activity ◽  
Self Report ◽  
Percent Body Fat ◽  
Lower Body ◽  
Body Fat Percent

Introduction: Expansion of visceral adipose tissue (VAT) associates with adverse metabolic changes. While regular moderate-to-vigorous activity is associated with lower total body fat in children and adolescents, it is unknown how physical activity relates to other adiposity indices, including VAT. Hypothesis: We hypothesized that regular physical activity in children and adolescents associates with lower body fat, percent body fat, abdominal subcutaneous adipose tissue (SAT), and VAT. Methods: The sample included 393 boys and girls aged 5–18 years (45.6% White, 50.6% African American, and 3.8% Other). Body fat and percent body fat were measured by dual-energy x-ray absorptiometry. Abdominal SAT and VAT mass were measured by magnetic resonance imaging between the highest point of the liver and the lower pole of the right kidney (using 5 to 8 cross-sectional slices, 4.76 cm apart). Participants were categorized as being regularly active by self-report: moderate-to-vigorous physical activity of ≥ 60 minutes/day, ≥ 4 days/week. Those who were physically active fewer than 4 days/week were categorized as not regularly active. Results: In this sample of children and adolescents, 45.6% of participants were regularly active. One-way ANCOVAs adjusted for age and sex demonstrated that regularly active youth had significantly less body fat (p<0.01) and lower percent body fat (p<0.01) than those who were not regularly active. One-way ANCOVAs adjusted for age, gender, and body fat, revealed that regularly active children and adolescents had no difference in SAT but had significantly lower amounts of VAT (p<0.05) when compared to those who were not regularly active. Conclusion: Engagement in moderate-to-vigorous physical activity for at least 60 minutes on four or more days of the week in children and adolescents was related to lower body fat, percent body fat and VAT, when compared to those youth who were less active. The promotion of regular physical activity has significant public health implications for body fat accumulation and for controlling excess VAT during childhood and adolescence.

scholarly journals Objective Versus Self-Reported Physical Activity in Overweight and Obese Young Adults

2015 ◽  
Vol 12 (10) ◽  
pp. 1394-1400 ◽  
Author(s):  
John M. Jakicic ◽  
Wendy C. King ◽  
Bethany Barone Gibbs ◽  
Renee J. Rogers ◽  
Amy D. Rickman ◽  
...  
Keyword(s):  
Physical Activity ◽  
Young Adults ◽  
Body Fat ◽  
Objective Measure ◽  
Interquartile Range ◽  
Self Report ◽  
Percent Body Fat ◽  
Intensity Physical Activity ◽  
Global Physical Activity Questionnaire ◽  
Activity Questionnaire

Background:To compare moderate-to-vigorous intensity physical activity (MVPA) assessed via questionnaires to an objective measure of MVPA in overweight or obese young adults.Methods:MVPA was assessed in 448 [median BMI = 31.2 (Interquartile Range: 28.5–34.3) kg/m2] young adults [median age: 30.9 (Interquartile Range: 27.8–33.7) years]. Measures included the SenseWear Armband (MVPAOBJ), the Paffenbarger Questionnaire (MVPAPAFF), and the Global Physical Activity Questionnaire (GPAQ). The GPAQ was used to compute total MVPA (MVPAGPAQ-TOTAL) and MVPA from transportation and recreation (MVPAGPAQ-REC).Results:The association between MVPAOBJ and MVPAPAFF was rs = 0.40 (P < .0001). Associations between MVPAOBJ and MVPAGPAQ-TOTAL and MVPAGPAQ-REC were rs = 0.19 and rs = 0.32, respectively (P < .0001). MVPAGPAQ-TOTAL was significantly greater than MVPAOBJ (P < .0001). Median differences in MET-min/week between MVPAOBJ and MVPAPAFF or MVPAGPAQ-REC were not significantly different from zero. There was proportional bias between each self-reported measure of MVPA and MVPAOBJ. There were significant associations between all measures of MVPA and fitness. MVPAOBJ was significantly associated with BMI and percent body fat.Conclusions:Objective and self-reported measures of MVPA are weakly to moderately correlated, with substantial differences between measures. MVPAOBJ provided predictive validity with fitness, BMI, and percent body fat. Thus, an objective measure of MVPA may be preferred to self-report in young adults.

Physical Activity, Fitness, and Physical Self-Concept in Adolescent Females

2006 ◽  
Vol 18 (2) ◽  
pp. 240-251 ◽  
Author(s):  
Genevieve Fridlund Dunton ◽  
Margaret Schneider ◽  
Dan J. Graham ◽  
Dan M. Cooper
Keyword(s):  
Physical Activity ◽  
Oxygen Consumption ◽  
Physical Fitness ◽  
Body Fat ◽  
Vigorous Physical Activity ◽  
Adolescent Females ◽  
Cardiovascular Fitness ◽  
Self Concept ◽  
Peak Oxygen Consumption ◽  
Percent Body Fat

Cross-sectional research examined whether physical activity or physical fitness was more closely linked to physical self-concept in adolescent females ages 14 to 17 (N = 103, 63% Caucasian). Moderate physical activity and vigorous physical activity were measured through a 3-day physical activity recall. Physical fitness was assessed using highly accurate measures of peak oxygen consumption (via cycle ergometer) and percent body fat (via dual X-ray absorptiometer). The Physical Self-Description Questionnaire (PSDQ) assessed self-concept in 11 domains (e.g., health, endurance, appearance). Pearson’s correlations showed that vigorous physical activity was positively associated with scores on most of the PSDQ scales (p < .005). Peak oxygen consumption was positively related to all of the selfconcept domains (p < .001), and percent body fat was negatively related on most of the PSDQ scales (p < .005). Multiple-regression analyses found that physical fitness (i.e., peak oxygen consumption and percent body fat) was more closely related to physical self-concept than was physical activity. In addition to the possibility that genetically determined fitness levels may influence physical selfconcept, these findings suggest that programs designed to elevate self-perceptions may require physical activity levels sufficient to improve cardiovascular fitness and decrease body fat.

scholarly journals Assessment of total fatness and fatty tissue distribution in young active and physically inactive women

2018 ◽  
Vol 10 (1) ◽  
pp. 38-44
Author(s):  
Anna Kopiczko ◽  
Aleksandra Bogucka
Keyword(s):  
Physical Activity ◽  
Adipose Tissue ◽  
Tissue Distribution ◽  
Body Mass ◽  
Body Fat ◽  
Fat Distribution ◽  
Lower Body ◽  
Hip Circumference ◽  
Physically Active ◽  
Adipose Tissue Distribution

Summary Study aim: The aim of the study was to evaluate the total fat and fat distribution in young active and physically inactive women. Material and methods: The study group consisted of a total of 300 students from Warsaw aged 20 to 25 years. The weekly physical activity level expressed in metabolic equivalent task was assessed using the International Physical Activity Question­naire. The distribution of adipose tissue was assessed on the basis of anthropometric measurements by somatometry. The waist and hip circumference, body mass and height were measured. Body mass index and waist to hip ratio were calculated. General fat was evaluated by bioelectric impedance. Results: Physically active students had significantly lower (p < 0.001) body mass, waist and hip circumference, lower body fat content and lower BMI and WHR compared to inactive students. Weight loss and the gynoidal type of adipose tissue distribu­tion were more frequent among physically active subjects. In inactive women the androidal-abdominal type of distribution dominated. A healthy somatic profile characterized by BMI in the normal range, gynoid type of adipose tissue distribution and normal or slightly lower body fat was significantly more frequent in physically active subjects (36% vs. 15%). Conclusions: Lack of physical activity was associated with larger waist and hip circumference, higher BMI and unfavorable adipose tissue distribution (androidal), which increases the risk of metabolic diseases in women. The study indicates the need for education and implementation of disease prevention programs regarding abdominal fat distribution and overweight among young women.

scholarly journals Comparison between self-reported and accelerometer-derived measurements for classifying children and adolescents as physically active in Chile

2021 ◽  
Vol 37 (2) ◽  
Author(s):  
Nicolas Aguilar-Farias ◽  
Sebastian Miranda-Marquez ◽  
Marcelo Toledo-Vargas ◽  
Damian Chandia-Poblete
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Vigorous Physical Activity ◽  
The Self ◽  
Self Report ◽  
Accelerometer Data ◽  
Physically Active

The aim of this study was to compare self-reported with two accelerometer-derived methods to classify Chilean children and adolescents as physically active. In total, 247 students wore an accelerometer on their hips during 7 consecutive days to classify them as physically active based on (1) daily accumulation of ≥ 60 minutes of moderate-to-vigorous physical activity (MVPA) on each of the seven days, and (2) average MVPA ≥ 60 minutes/day. Also, participants were classified as physically active if they reported being active for at least 60 minutes in all seven days. When using the accelerometer data, 0.8% were active in all seven days, while 10.5% recorded ≥ 60 minutes MVPA per day on average. Based on self-report, 7.2% were physically active. The agreement between self-reported and accelerometer estimations were poor. Important differences were observed between the self-reported and device-derived methods for classifying children and adolescents as physically active. When comparing them, some considerations should be taken. The findings suggest that these methods are not interchangeable. Therefore, if possible, they should be used as complementary measurements.

scholarly journals Determinants of student’s physical activity: a 12-month follow-up study in Ningxia province

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Wei Huang ◽  
Xiangrong Shi ◽  
Yujie Wang ◽  
Xiaoling Li ◽  
Pengpeng Gao ◽  
...  
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Vigorous Physical Activity ◽  
Skill Training ◽  
Critical Role ◽  
School Factors ◽  
Factors Associated ◽  
Students Attitudes ◽  
Sport Events

Abstract Background Physical activity has many health benefits for children and adolescents. However, the prevalence of physical inactivity in school-aged children and adolescents remains high in China. Many factors impact the levels of moderate and vigorous physical activity (MVPA) among students. This study investigated the factors associated with students’ MVPA levels and the determinants of changes in their MVPA behaviour. Methods This is a longitudinal study with a 12-month follow-up. The study samples were obtained from 2016 and 2017 Physical Activity and Fitness in China—The Youth Study, and they included 1597 students (aged 9–18 years) from 31 primary, junior high, and high schools in Ningxia Province. Factors related to the individual (Age, Sex, BMI and attitude to PA), school (school exercise facility, PE class, teacher support, PA time and PA environment) and neighbourhood (free skill training, sport events, sport organization, sport facility) factors were measured via questionnaire at baseline and after 12 months. Multiple logistic regression was performed to examine the factors that impact students’ MVPA level and the determinants of changes in students’ MVPA behaviour. Results There was no difference in students’ MVPA levels between 2016 and 2017. Boys were more physically active than girls at baseline (RR 1.55, 95% CI 1.10, 2.20). Neighbourhood factors associated students’ MVPA levels were significant, but all of these factors (neighbourhood sport events, organizations, facilities, etc.) were removed from the longitudinal model. Individual and school factors were important for students’ MVPA maintenance and positive development (e.g., gender, attitude, school PE class and PA time). Conclusions In conclusion, both neighbourhood and school factors may affect students’ MVPA, but school appears to plays a more critical role in maintaining and promoting students’ MVPA levels. In addition, individual factors may be more important than school and neighbourhood factors in influencing students’ MVPA levels. Our research demonstrates that students’ attitudes towards PA and school factors should be considered targets for future intervention programmes to promote MVPA. More education programmes may help enhance students’ attitudes towards PA, but more studies with large samples and objective assessments are needed to explore the determinants of MVPA.

Investigating the relationship between insulin resistance and adipose tissue in a randomized Tehrani population

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jalaledin Mirzay Razzaz ◽  
Hossein Moameri ◽  
Zahra Akbarzadeh ◽  
Mohammad Ariya ◽  
Seyed ali Hosseini ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Adipose Tissue ◽  
Body Fat ◽  
Odds Ratio ◽  
Cross Sectional Study ◽  
Model Assessment ◽  
Fasting Insulin ◽  
Cross Sectional ◽  
Body Fat Percent ◽  
The Relationship

Abstract Objectives Insulin resistance is the most common metabolic change associated with obesity. The present study aimed to investigate the relationship between insulin resistance and body composition especially adipose tissue in a randomized Tehrani population. Methods This study used data of 2,160 individuals registered in a cross-sectional study on were randomly selected from among subjects who were referred to nutrition counseling clinic in Tehran, from April 2016 to September 2017. Insulin resistance was calculated by homeostasis model assessment formula. The odds ratio (95% CI) was calculated using logistic regression models. Results The mean age of the men was 39 (±10) and women were 41 (±11) (the age ranged from 20 to 50 years). The risk of increased HOMA-IR was 1.03 (95% CI: 1.01–1.04) for an increase in one percent of Body fat, and 1.03 (95% CI: 1.00–1.05) for an increase in one percent of Trunk fat. Moreover, the odds ratio of FBS for an increase in one unit of Body fat percent and Trunk fat percent increased by 1.05 (adjusted odds ratio [95% CI: 1.03, 1.06]) and 1.05 (95% CI: 1.02, 1.08). Also, the risk of increased Fasting Insulin was 1.05 (95% CI: 1.03–1.07) for an increase in one unit of Body fat percent, and 1.05 (95% CI: 1.02–1.08) for an increase in one unit of Trunk fat percent. Conclusions The findings of the present study showed that there was a significant relationship between HOMA-IR, Fasting blood sugar, Fasting Insulin, and 2 h Insulin with percent of Body fat, percent of Trunk fat.

scholarly journals The Promise of Youth Resistance Training

2021 ◽  
Vol 37 (02) ◽  
pp. 47-51
Author(s):  
Avery D Faigenbaum ◽  
Stephan Geisler
Keyword(s):  
Physical Activity ◽  
Resistance Training ◽  
Children And Adolescents ◽  
Vigorous Physical Activity ◽  
Temporal Trends ◽  
Developmentally Appropriate ◽  
Muscular Fitness ◽  
Exercise Interventions ◽  
Sport Activities ◽  
Building Activities

SummaryGlobal health reports indicate that a vast majority of children and adolescents are not accumulating the recommended amount of moderate to vigorous physical activity (MVPA) daily. This decline in MVPA has coincided with troubling temporal trends in muscular fitness in modern day youth. Since a prerequisite level of muscular strength is needed to move proficiently, developmentally appropriate interventions that target neuromuscular deficits are needed to prepare girls and boys for ongoing participation in active play, exercise and sport activities. Instead of focusing exclusively on aerobic activities, the promotion of youth physical activity should recognize the shared importance of strength, skill and aerobic activities for all youth regardless of body size or physical prowess. In addition to enhancing muscular fitness and improving motor skill performance, regular participation in resistance training has been found to have a favorable influence on musculoskeletal strength, cardiometabolic function, body composition, and mental health in children and adolescents. A new mindset that recognizes the critical importance of strength-building activities early in life is needed before this generation of girls and boys becomes resistant to exercise interventions later in life.

Accelerometry and Self-Report Are Congruent for Children’s Moderate-to-Vigorous and Higher Intensity Physical Activity

2021 ◽  
pp. 1-8
Author(s):  
Claudio R. Nigg ◽  
Xanna Burg ◽  
Barbara Lohse ◽  
Leslie Cunningham-Sabo
Keyword(s):  
Physical Activity ◽  
Repeated Measures ◽  
Vigorous Physical Activity ◽  
Fourth Grade ◽  
Assessment Method ◽  
Self Report ◽  
Upper Elementary ◽  
Upper Elementary School ◽  
Intensity Physical Activity

Purpose: This study used different analytic approaches to compare physical activity (PA) metrics from accelerometers (ACC) and a self-report questionnaire in upper elementary youth participating in the Fuel for Fun intervention. Methods: The PA questionnaire and ACC were assessed at baseline/preintervention (fall fourth grade), Follow-up 1/postintervention (spring fourth grade), and Follow-up 2 (fall fifth grade) of 564 fourth grade students from three elementary schools (50% females, 78% White, and 28% overweight or obese). Different analytic approaches identified similarities and differences between the two methods. Results: On average, self-report was higher than ACC for vigorous PA (range = 9–15 min/day), but lower than ACC for moderate PA (range = 24–30 min/day), light PA (range = 30–36 min/day), and moderate-to-vigorous physical activity (MVPA; range = 9–21 min/day). Spearman’s correlations for vigorous PA (.30, .26, and .32); moderate PA (.12, .13, and .14); and MVPA (.25, .25, and .24) were significant at each time point (all ps ≤ .01), whereas correlations for light PA were not significant (.06, .04, and .07; all ps > .05). In repeated-measures analyses, ACC and questionnaire measures were significantly different from each other across the three time points; however, change difference of the two measures over time was only 5.5 MVPA min/day. Conclusions: The PA questionnaire and ACC validated each other and can be used to assess MVPA in upper elementary school children in a similar population to the current study. However, each assessment method captures unique information, especially for light-intensity PA. Multiple PA measurement methods are recommended to be used in research and application to provide a more comprehensive understanding of children’s activity.

scholarly journals Objectively Measured Physical Activity and Sedentary Time among Children and Adolescents in Morocco: A Cross-Sectional Study

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Issad Baddou ◽  
Asmaa El Hamdouchi ◽  
Imane El Harchaoui ◽  
Kaoutar Benjeddou ◽  
Naima Saeid ◽  
...  
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Cardiovascular Health ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Physical Activity Guideline ◽  
Activity Levels ◽  
Cross Sectional ◽  
Physical Activity Levels ◽  
Objectively Measured

Background. Regular physical activity in childhood and adolescent plays an important role in reducing the risk of cardiovascular health diseases, diabetes, and obesity in adulthood. However, little is known about physical activity levels (PA) and sedentary time among children and adolescents in Morocco. Objective. To examine gender, type of day, and age grade differences in objectively measured sedentary time, physical activity levels, and physical activity guideline attainment among children and adolescents in Morocco. Method. 172 children/adolescents (mean age = 10.92 ± 1.55 years, 49.4% are boys) were recruited for this study and wore a tri-axial accelerometer (GT3X+) for 7 consecutive days. Time spent in sedentary, PA levels, and daily steps were measured and compared according to gender, age grade, and the type of day (weekdays/weekends). Results. In weekdays children/adolescents spent more time in sedentary than weekends (p < 0.001). Boys were eight times more likely to meet the recommendation for at least 60 min of moderate to vigorous physical activity per day than girls (OR: 8.569; 95% [CI]: 4.23–17.32), p < 0.001. Conclusion. These findings highlight the need for effective and sustainable strategies and programs aiming to promote physical activity and to reduce sedentary behavior among children and adolescents in Morocco.

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