Changes in Physical Fitness and Physical Activity during Puberty Do Not Predict Lipoprotein Profile Changes: The Muscatine Study

2000 ◽  
Vol 12 (3) ◽  
pp. 232-243
Author(s):  
Kathleen F. Janz ◽  
Jeffrey D. Dawson ◽  
Larry T. Mahoney
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Aerobic Fitness ◽  
Regression Line ◽  
Multivariable Analysis ◽  
Predictor Variables ◽  
Lipoprotein Profile ◽  
Early Maturation ◽  
Profile Changes ◽  
Free Body

To evaluate the effect of changes in aerobic fitness and physical activity on changes in lipoproteins, we measured body composition, peak V̇O2, vigorous and sedentary activity, maturation, and lipoproteins in 125 children (mean baseline age, 10.5 years) for 5 years. Change in variables was analyzed using the slopes of the regression line obtained by plotting the data for each child. No predictor variables were significant for girls. In boys, predictors of favorable changes in lipoproteins included decreases in fatness, increases in fitness, early maturation, and increases in fat-free body mass (FFM). Multivariable analysis, adjusted for baseline age, indicated that change in FFM explained 21% of the variability in change in LDL-C. Results suggest that during puberty, changes in activity and fitness do not predict changes in lipoproteins.

SEX AND RACE DIFFERENCES IN PHYSICAL ACTIVITY, AEROBIC FITNESS, AND BODY COMPOSITION AMONG FIFTH GRADE CHILDREN 238

1996 ◽  
Vol 28 (Supplement) ◽  
pp. 40
Author(s):  
M. T. Mahar ◽  
C. R. Parker ◽  
D. M. Dawson ◽  
F. J. Mahar ◽  
D. A. Rowe
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Aerobic Fitness ◽  
Race Differences ◽  
Fifth Grade

scholarly journals Physical Activity, Aerobic Fitness and Body Composition among Students in Malaysia and Libya

2013 ◽  
Vol 9 (16) ◽  
Author(s):  
Mohd Radzani Abdul Razak ◽  
Ibrahim Elsalhin Maizi ◽  
Tajul Arifin Muhamad
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Aerobic Fitness

Effects Of Physical Activity And Body Mass Index On Body Composition And Aerobic Fitness In Children

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S428
Author(s):  
Nordine Lazaar ◽  
Julien Aucouturier ◽  
Pierre Rudolf ◽  
Emmanuel Van Praagh ◽  
Martine Meyer ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Composition ◽  
Body Mass ◽  
Aerobic Fitness

Effects Of Physical Activity And Body Mass Index On Body Composition And Aerobic Fitness In Children

2005 ◽  
Vol 37 (Supplement) ◽  
pp. S428
Author(s):  
Nordine Lazaar ◽  
Julien Aucouturier ◽  
Pierre Rudolf ◽  
Emmanuel Van Praagh ◽  
Martine Meyer ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Mass Index ◽  
Body Composition ◽  
Body Mass ◽  
Aerobic Fitness

scholarly journals The Relation between Aerobic Fitness, Muscular Fitness, and Obesity in Children from Three Countries at Different Stages of the Physical Activity Transition

ISRN Obesity ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
M. Héroux ◽  
V. Onywera ◽  
M. S. Tremblay ◽  
K. B. Adamo ◽  
J. Lopez Taylor ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Waist Circumference ◽  
Aerobic Fitness ◽  
The Body ◽  
Muscular Fitness ◽  
Mexican Children ◽  
Prevalence Of Obesity ◽  
Fitness Measures ◽  
The Relationship

Background. The physical activity transition is contributing to an increase in childhood obesity and a decrease in fitness worldwide. This study compared body composition and fitness measures in children from three countries and examined intercountry differences in the relationship between these variables. Methods. Participants consisted of 736 Canadian, 193 Mexican, and 179 Kenyan children aged 9–13 years. Body mass index (BMI), waist circumference, triceps skinfolds, aerobic fitness, and muscular fitness were measured. Linear regression was used to examine associations between variables. Results. The prevalence of obesity was the highest in Mexican children (9.2% boys, 8.4% girls) and the lowest in Kenyan children (0.9% boys, 2.8% girls). Aerobic fitness (VO2max in mL/kg/min) was the highest in Kenyan children (50.2 boys, 46.7 girls) and the lowest in Canadian children (41.3 boys, 38.3 girls). Aerobic fitness was negatively associated with body composition measures irrespective of country and sex. Mexican children with low aerobic fitness had higher body composition measures than Canadian and Kenyan children. Muscular fitness was not associated with the body composition measures in Kenyan children but was a weak positive correlate of BMI and waist circumference in Canadian and Mexican children. Conclusion. The current study provides some evidence to support the physical activity transition hypothesis.

Aging, Body Composition, and Physical Activity: A Review

1994 ◽  
Vol 2 (1) ◽  
pp. 38-66 ◽  
Author(s):  
Scott B. Going ◽  
Daniel P. Williams ◽  
Timothy G. Lohman ◽  
Michael J. Hewitt
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Disease Risk ◽  
The Elderly ◽  
Rate Of Change ◽  
Older Individuals ◽  
Estimation Errors ◽  
Age Related ◽  
Aging Body ◽  
Free Body

This paper reviews age related changes in body fat, fat-free body mass, and the subcomponents of FFM including protein, mineral, and body water. It gives an overview of common methods and their limitations in the elderly and reviews the effects of physical activity on body composition in middle-aged and older individuals. Surprisingly little information is available on this important topic in men and women >80 years of age. Although research to date has described a number of qualitative trends with aging and shown the correlations between changes in fat and FFM with disease risk, quantification of rate of change has proven difficult. This is partly because changes in the aging body affect the indicators of body composition, leading to estimation errors, and because few long-term longitudinal studies have been completed. The increasing awareness of the important relationships among health, nutrition, and body composition, and the profound change in population demographics projected for the next 25 to 50 years, has focused attention on this problem and will undoubtedly stimulate additional research in this area.

Association between aerobic fitness, body composition, and physical activity in 9- and 15-year-olds

2009 ◽  
Vol 9 (3) ◽  
pp. 141-150 ◽  
Author(s):  
Thorarinn Sveinsson ◽  
Sigurbjorn A. Arngrimsson ◽  
Erlingur Johannsson
Keyword(s):  
Physical Activity ◽  
Body Composition ◽  
Aerobic Fitness

scholarly journals Objectively measured preoperative physical activity is associated with time to functional recovery after hepato-pancreato-biliary cancer surgery: a pilot study

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Caspar F. Mylius ◽  
Wim P. Krijnen ◽  
Tim Takken ◽  
Daan J. Lips ◽  
Hasan Eker ◽  
...  
Keyword(s):  
Physical Activity ◽  
Pilot Study ◽  
Functional Recovery ◽  
Aerobic Fitness ◽  
Robust Regression ◽  
Vigorous Physical Activity ◽  
Multivariable Analysis ◽  
Cancer Surgery ◽  
Fitness Level ◽  
Objectively Measured

Abstract Background Surgical resection is currently the cornerstone of hepato-pancreato-biliary (HPB) cancer treatment. A low preoperative aerobic fitness level has been identified as a modifiable risk factor associated with complications after major abdominal surgery. A person’s aerobic fitness is influenced by performing moderate to vigorous physical activity (MVPA). This study aims to determine the activity monitor measured levels of MVPA performed among patients on the waiting list for HPB cancer surgery and their association with postoperative outcomes. Methods A prospective, observational multi-center cohort pilot study was conducted. Patients enlisted for resection surgery on suspicion of HPB (pre)malignancy were enrolled. Performed MVPA was measured by an Actigraph wGT3X-BT. Additionally, aerobic fitness was measured via the Incremental Shuttle Walk Test, and (post)operative variables were collected from the electronic patient files. The association between MVPA and the pre- and postoperative variables was determined by univariate and multivariable (logistic) robust regression. Results A total of 38 participants, median age 66.0 (IQR 58.25–74.75) years, were enrolled. The median daily MVPA was 10.7 (IQR 6.9–18.0) min; only 8 participants met the Dutch MVPA guidelines. Participant’s age and aerobic fitness were associated with MVPA by multivariable statistical analysis. Time to functional recovery was 8 (IQR 5–12) days and was associated with MVPA and type of surgery (major/minor) in multivariable analysis. Conclusion Seventy-six percent of patients enlisted for resection of HPB (pre)malignancy performed insufficient MVPA. A higher level of MVPA was associated with a shorter time to functional recovery.

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