Body Size Changes Among National Collegiate Athletic Association New England Division III Football Players, 1956−2014: Comparison With Age-Matched Population Controls

Elliott, Kayla R.; Harmatz, Jerold S.; Zhao, Yanli; Greenblatt, David J.

doi:10.4085/1062-6050-51.5.14

Cited by 8 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The method in principle is generalizable, but prediction accuracy might be compromised among subject groups having body construction that is not "typical" of the representative population sample used to develop the algorithm. [55][56][57][58][59][60][61][62][63][64][65][66][67] Another potential source of variance includes differences among study sites in manufacturer and calibration procedures of the DXA scanning instrumentation itself. [44][45][46] In the present study, instrumentation differences were accounted for, insofar as possible, through cross-calibration studies evaluating DXA scanning instruments from different manufacturers.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Estimation of Absolute and Relative Body Fat Content Using Noninvasive Surrogates: Can DXA Be Bypassed?

Greenblatt,

Bruno,

Harmatz

et al. 2023

The Journal of Clinical Pharma

Self Cite

View full text Add to dashboard Cite

Dual‐energy x‐ray absorptiometry (DXA) scanning is used for objective determination of body composition, but instrumentation is expensive and not generally available in customary clinical practice. Anthropometric surrogates are often substituted as anticipated correlates of absolute and relative body fat content in the clinical management of obesity and its associated medical risks. DXA and anthropometric data from a cohort of 9230 randomly selected American subjects, available through the ongoing National Health and Nutrition Examination Survey, was used to evaluate combinations of surrogates (age, height, total weight, waist circumference) as predictors of DXA‐determined absolute and relative body fat content. Multiple regression analysis yielded linear combinations of the 4 surrogates that were closely predictive of DXA‐determined absolute fat content (R2 = 0.93 and 0.96 for male and female subjects). Accuracy of the new algorithm was improved over customary surrogate‐based predictors such as body mass index. However prediction of relative body fat was less robust (R2 less than 0.75), probably due to the nonlinear relation between degree of obesity (based on body mass index) and relative body fat. The paradigm was validated using an independent cohort from the National Health and Nutrition Examination Survey, as well as two independent external subject groups. The described regression‐based algorithm is likely to be a sufficiently accurate predictor of absolute body fat (but not relative body fat) to substitute for DXA scanning in many clinical situations. Further work is needed to assess algorithm validity for subgroups of individuals with “atypical” body construction.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Deviations between predicted body fat based on quantitative surrogates (such as BMI) and actual body fat as measured by DXA are reported in studies of "atypical" groups such as muscular athletes, endurance athletes, jockeys, and individuals with eating disorders. [55][56][57][58][59][60][61][62][63][64][65][66][67]…”

Section: S45mentioning

confidence: 99%

Estimation of Absolute and Relative Body Fat Content Using Noninvasive Surrogates: Can DXA Be Bypassed?

Greenblatt,

Bruno,

Harmatz

et al. 2023

The Journal of Clinical Pharma

Self Cite

View full text Add to dashboard Cite

show abstract

“…We previously estimated the global prevalence of the overfat population using several subpopulations that included those who are overweight, obese, MONW individuals, those with sarcopenic obesity and others ( 1 ). Additionally, the overfat pandemic has not spared physically active people, including professional athletes in various sports ( 82 , 83 ) and active US military personnel ( 84 , 85 ).…”

Section: Who Is Overfatmentioning

confidence: 99%

Overfat Adults and Children in Developed Countries: The Public Health Importance of Identifying Excess Body Fat

Maffetone

Rivera-Dominguez²,

Laursen

2017

Front. Public Health

View full text Add to dashboard Cite

The global overfat pandemic is a serious public health crisis that places a substantial burden on economic resources in developed countries. The term overfat refers to the presence of excess body fat that can impair health, even for normal weight non-obese individuals. Excess body fat is associated with cardiometabolic dysfunction, a clinical situation that can progressively worsen, potentially leading to various common disease risk factors, chronic diseases, increased morbidity and mortality, and reduced quality of life. The prevalence of overfat populations in 30 of the world’s most developed countries is substantially higher than recent global estimations, with the largest growth due to a relatively recent increased number of people with excess abdominal fat. Abdominal overfat is the most unhealthful form of this condition, so it is concerning that average waist circumference measures, generally indicative of abdominal overfat, have increased. Despite a leveling off appearance of being overweight and/or obese in some developed countries, the overfat pandemic continues to grow.

show abstract

“…However, physical activity and exercise is expected to increase energy expenditure and whole body fat oxidation, with a sedentary lifestyle decreasing insulin sensitivity and fat oxidation, potentially increasing stored body fat ( 78 – 82 ). This includes elite athletes and those in active military, who can also have excess body fat ( 83 – 86 ). In healthy adults, high glycemic foods can also reduce overall energy expenditure by nearly 50% compared with isoenergetic meals containing whole foods ( 87 ).…”

Section: Lifestyle Influence On Body Fatmentioning

confidence: 99%

The Prevalence of Overfat Adults and Children in the US

Maffetone

Laursen

2017

Front. Public Health

View full text Add to dashboard Cite

The overfat condition is defined as excess body fat sufficient to impair health. The problem exists in most overweight and obese individuals and can also occur in those who are normal-weight and non-obese, often due to excess abdominal fat. Despite previous indications that the prevalence overweight and obesity is leveling, these conditions are currently at their highest levels in US history. Our review estimated the number of overfat Americans at 91% for adults and 69% for children. The primary purpose of this review was to build upon previous estimations of overfat prevalence in developed countries by using new data from the Centers for Disease Control and Prevention to estimate the overfat prevalence in American adults (≥20 years) and children (2–19 years), and to expand the definition of overfat as excess body fat associated with at least one additional risk factor of impaired cardiometabolic or physical health. The secondary goals are to highlight the role of dietary sugar as a primary cause of the overfat pandemic and mention new data showing the increased prevalence of exercise that parallels the rising prevalence of overfat to further emphasize the secondary role exercise may play in fat loss. Current public health guidelines to address the overfat pandemic may require more emphasis on reducing the consumption of refined carbohydrates, including added sugars.

show abstract

Body Size Changes Among National Collegiate Athletic Association New England Division III Football Players, 1956−2014: Comparison With Age-Matched Population Controls

Cited by 8 publications

References 36 publications

Estimation of Absolute and Relative Body Fat Content Using Noninvasive Surrogates: Can DXA Be Bypassed?

Estimation of Absolute and Relative Body Fat Content Using Noninvasive Surrogates: Can DXA Be Bypassed?

Overfat Adults and Children in Developed Countries: The Public Health Importance of Identifying Excess Body Fat

The Prevalence of Overfat Adults and Children in the US

Contact Info

Product

Resources

About