scholarly journals Effects Of In-season Training On Body Composition In Division I Collegiate Football Players

2021 ◽  
Vol 53 (8S) ◽  
pp. 45-45
Author(s):  
Kayla Emory ◽  
Clayton L. Camic ◽  
Emerson Sebastião ◽  
Christopher M. Hill ◽  
Ryan Napoli ◽  
...  
Keyword(s):  
Body Composition ◽  
Division I ◽  
Football Players ◽  
Collegiate Football

scholarly journals Predicting Football Players' Dual-Energy X-Ray Absorptiometry Body Composition Using Standard Anthropometric Measures

2012 ◽  
Vol 47 (3) ◽  
pp. 257-263 ◽  
Author(s):  
Jonathan M. Oliver ◽  
Brad S. Lambert ◽  
Steven E. Martin ◽  
John S. Green ◽  
Stephen F. Crouse
Keyword(s):  
Body Composition ◽  
Health Risk ◽  
National Collegiate Athletic Association ◽  
Skinfold Thickness ◽  
Dual Energy ◽  
Football Players ◽  
Regression Equations ◽  
Anthropometric Measures ◽  
X Ray ◽  
Collegiate Football

Context: The recent increase in athlete size, particularly in football athletes of all levels, coupled with the increased health risk associated with obesity warrants continued monitoring of body composition from a health perspective in this population. Equations developed to predict percentage of body fat (%Fat) have been shown to be population specific and might not be accurate for football athletes. Objective: To develop multiple regression equations using standard anthropometric measurements to estimate dual-energy x-ray absorptiometry %Fat (DEXA%Fat) in collegiate football players. Design: Controlled laboratory study. Patients and Other Participants: One hundred fifty-seven National Collegiate Athletic Association Division IA football athletes (age  =  20 ± 1 years, height  =  185.6 ± 6.5 cm, mass  =  103.1 ± 20.4 kg, DEXA%Fat  =  19.5 ± 9.1%) participated. Main Outcome Measure(s): Participants had the following measures: (1) body composition testing with dual-energy x-ray absorptiometry; (2) skinfold measurements in millimeters, including chest, triceps, subscapular, midaxillary, suprailiac, abdominal (SFAB), and thigh; and (3) standard circumference measurements in centimeters, including ankle, calf, thigh, hip (AHIP), waist, umbilical (AUMB), chest, wrist, forearm, arm, and neck. Regression analysis and fit statistics were used to determine the relationship between DEXA%Fat and each skinfold thickness, sum of all skinfold measures (SFSUM), and individual circumference measures. Results: Statistical analysis resulted in the development of 3 equations to predict DEXA%Fat: model 1, (0.178 • AHIP) + (0.097 • AUMB) + (0.089 • SFSUM) − 19.641; model 2, (0.193 • AHIP) + (0.133 • AUMB) + (0.371 • SFAB) − 23.0523; and model 3, (0.132 • SFSUM) + 3.530. The R2 values were 0.94 for model 1, 0.93 for model 2, and 0.91 for model 3 (for all, P < .001). Conclusions: The equations developed provide an accurate way to assess DEXA%Fat in collegiate football players using standard anthropometric measures so athletic trainers and coaches can monitor these athletes at increased health risk due to increased size.

Body Composition in Division I Football Players

2003 ◽  
Vol 17 (2) ◽  
pp. 228 ◽  
Author(s):  
Mary Barth Noel ◽  
Jaci L. VanHeest ◽  
Phil Zaneteas ◽  
Carol D. Rodgers
Keyword(s):  
Body Composition ◽  
Division I ◽  
Football Players ◽  
Division I Football

scholarly journals Frequency of Head-Impact–Related Outcomes by Position in NCAA Division I Collegiate Football Players

2015 ◽  
Vol 32 (5) ◽  
pp. 314-326 ◽  
Author(s):  
Christine M. Baugh ◽  
Patrick T. Kiernan ◽  
Emily Kroshus ◽  
Daniel H. Daneshvar ◽  
Philip H. Montenigro ◽  
...  
Keyword(s):  
Ncaa Division I ◽  
Head Impact ◽  
Division I ◽  
Football Players ◽  
Collegiate Football

Body Composition in Division I Football Players

2003 ◽  
Vol 17 (2) ◽  
pp. 228-237 ◽  
Author(s):  
MARY BARTH NOEL ◽  
JACI L. VANHEEST ◽  
PHIL ZANETEAS ◽  
CAROL D. RODGERS
Keyword(s):  
Body Composition ◽  
Division I ◽  
Football Players ◽  
Division I Football

Lifetime prevalence of injuries in incoming division I collegiate football players

2017 ◽  
Vol 45 (4) ◽  
pp. 458-462 ◽  
Author(s):  
Nikolas Sarac ◽  
William Haynes ◽  
Angela Pedroza ◽  
Christopher Kaeding ◽  
James Borchers
Keyword(s):  
Division I ◽  
Lifetime Prevalence ◽  
Football Players ◽  
Collegiate Football

Characteristics of the Electrocardiogram of Incoming Division I Freshmen or Transfer Collegiate Football Players

2007 ◽  
Vol 39 (Supplement) ◽  
pp. S29
Author(s):  
Stephen F. Crouse ◽  
Brent E. Hansen ◽  
Thomas H. Meade ◽  
Greg S. Miller ◽  
Grady Kaiser ◽  
...  
Keyword(s):  
Division I ◽  
Football Players ◽  
Collegiate Football

Examination of Body Mass Changes Among Division I Collegiate Football Players With Sickle Cell Trait

2021 ◽  
pp. 1-6
Author(s):  
Rebecca M. Hirschhorn ◽  
Jessica L. Phillips Gilbert ◽  
Danielle A. Cadet ◽  
Tenley E. Murphy ◽  
Clinton Haggard ◽  
...  
Keyword(s):  
Body Mass ◽  
Sickle Cell ◽  
Student Athletes ◽  
Sickle Cell Trait ◽  
American Football ◽  
Division I ◽  
Football Players ◽  
Significant Difference ◽  
Body Mass Changes ◽  
Collegiate Football

American football athletes are frequently hypohydrated before and during activity. Hypohydration increases the risk of exertional sickling in student-athletes with sickle cell trait (SCT). The authors examined weight charts from the 2010/2011 to 2018/2019 seasons at one Division I institution to determine if differences in percentage body mass losses (%BML) exist between those with and without SCT. Seventeen student-athletes with SCT and 17 matched-controls were included. A Bonferroni correction was applied to account for multiple comparisons (0.05/8), resulting in p < .006 considered significant. There was a significant difference for %BML between groups (SCT: 0.84 ± 0.65% vs. control: 1.21 ± 0.71%; p = .002) but not for the number of days %BML exceeded 2% (SCT: 0 ± 1 vs. control: 1 ± 1; p = .016). Implementation of proper hydration strategies minimized %BML in athletes with SCT, decreasing the risk of hypohydration and exertional sickling. The same strategies ensured all players remained below threshold to optimize performance and reduce heat illness risk.

Sweat and Sodium Losses in NCAA Football Players: A Precursor to Heat Cramps?

2005 ◽  
Vol 15 (6) ◽  
pp. 641-652 ◽  
Author(s):  
John R. Stofan ◽  
Jeffrey J. Zachwieja ◽  
Craig A. Horswill ◽  
Robert Murray ◽  
Scott A. Anderson ◽  
...  
Keyword(s):  
Fluid Intake ◽  
Division I ◽  
Football Players ◽  
Sweat Loss ◽  
Fluid Deficit ◽  
Wide Variability ◽  
History Of ◽  
Collegiate Football ◽  
Fluid Losses ◽  
Sweat Sodium

This observational study was designed to determine whether football players with a history of heat cramps have elevated fluid and sodium losses during training. During a “two-a-day” training camp, five Division I collegiate football players (20.2 ± 1.6 y, 113 ± 20 kg) with history of heat cramps (C) were matched (weight, age, race and position) with a cohort of teammates (19.6 ± 0.6 y, 110 ± 20 kg) who had never cramped (NC). Change in body weight (adjusted by fluid intake) determined gross sweat loss. Sweat samples (forearm patch) were analyzed for sodium and potassium concentrations. Adlibitum fluid intake was measured by recording pre- and post-practice bottle weights. Average sweat sodium loss for a 2.5-h practice was projected at 5.1 ± 2.3 g (C) vs. 2.2 ± 1.7 g (NC). When averaged across two practices within the day, fluid intake was similar between groups (C: 2.6 ± 0.8 L vs. NC: 2.8 ± 0.7 L), as was gross sweat loss (C: 4.0 ± 1.1 L vs. NC: 3.5 ± 1.6 L). There was wide variability in the fluid deficit incurred for both C and NC (1.3 ± 0.9 vs. 0.7 ± 1.2%) due to fluid intake. Sweat potassium was similar between groups, but sweat sodium was two times higher in C versus NC (54.6 ± 16.2 vs. 25.3 ± 10.0 mmol/L). These data indicate that sweat sodium losses were comparatively larger in cramp-prone football players than in NC. Although both groups consumed sodium-containing fluids (on-field) and food (off-field), both appeared to experience an acute sodium deficit at the end of practices based on sweat sodium losses. Large acute sodium and fluid losses (in sweat) may be characteristic of football players with a history of heat cramping.

Sign in / Sign up

Export Citation Format

Share Document