Changes in aerobic fitness and body fat during army recruit training

1978 ◽  
Vol 40 (1) ◽  
pp. 37-43 ◽  
Author(s):  
J. A. Vogel ◽  
J. P. Crowdy ◽  
A. F. Amor ◽  
D. E. Worsley
Keyword(s):  
Body Fat ◽  
Aerobic Fitness ◽  
Recruit Training ◽  
Army Recruit

scholarly journals Gender difference in cardiovagal baroreflex gain in humans

2001 ◽  
Vol 91 (5) ◽  
pp. 2088-2092 ◽  
Author(s):  
Stacy D. Beske ◽  
Guy E. Alvarez ◽  
Tasha P. Ballard ◽  
Kevin P. Davy
Keyword(s):  
Blood Pressure ◽  
Body Mass Index ◽  
Gender Differences ◽  
Systolic Blood Pressure ◽  
Body Fat ◽  
Aerobic Fitness ◽  
Operating Point ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Lower Systolic Blood Pressure

We tested the hypothesis that women would demonstrate lower cardiovagal baroreflex gain compared with men. If so, we further hypothesized that the lower cardiovagal baroreflex gain in women would be associated with their lower aerobic fitness and higher body fat percentage compared with men. To accomplish this, we measured cardiovagal baroreflex gain (modified Oxford technique) in sedentary, nonobese (body mass index < 25 kg/m2) men (age = 26.0 ± 2.1 yr, n = 11) and women (age = 26.9 ± 1.6 yr, n = 14). Resting R-R interval and diastolic blood pressure were similar in the two groups, but systolic blood pressure was lower ( P < 0.05) in the women. Cardiovagal baroreflex gain was significantly lower in the women compared with the men (13.3 ± 1.5 vs. 20.0 ± 2.8 ms/mmHg, P< 0.05). The lower cardiovagal baroreflex gain in the women was not related ( P > 0.05) to their lower aerobic fitness and was only marginally related to their higher body fat percentage ( r = −0.34, P < 0.05). There were no gender differences in the threshold and saturation, operating range, or operating point (all P > 0.05), although the operating point fell significantly to left (i.e., at a lower systolic blood pressure) compared with men. Therefore, the findings of this study suggest that the gain of the cardiovagal baroreflex is reduced whereas other parameters were similar in women compared with men. The mechanisms responsible for the reduced cardiovagal baroreflex gain remain unclear.

scholarly journals Evaluation of the relationship between body composition and aerobic fitness in youth soccer players

2018 ◽  
Vol 22 (5) ◽  
pp. 258-264 ◽  
Author(s):  
Ö. Nalbant ◽  
K. Özer
Keyword(s):  
Body Composition ◽  
Body Fat ◽  
Aerobic Fitness ◽  
T Test ◽  
Analysis Of Covariance ◽  
Soccer Players ◽  
Fat Percentage ◽  
Test Protocol ◽  
Youth Soccer ◽  
Long Jump

Background and Study Aim: The purpose of the study was to make an evaluation between aerobic fitnes (VO2max) and body composition in youth soccer players. Material and Methods: U19, U17, U16 and U15 age groups participated in the study. Twenty-eight U19 (average age 18,03±0,58), twenty-three U17 (average age 16,72±0,30), twenty-seven U16 (average age 15,79±0,23) and twenty-one U15 (average age 14,67±0,31) totally ninety-nine athletes voluntarily participated in the study. The subjects’ body weight and fat percentage were estimated by bioelectrical impedance. VO2max was determined by YOYO Intermittan Recovery test protocol. Shapiro-wilk test, Independent t test, hierarchical regression and analysis of covariance were used to compare the relationships between aerobic fitness and body composition. Additionally, Pearson correlation coefficients were calculated to examine the relationships between variables. The level of significance for all statistics was set at p<0.05. SPSS 23 software was used to calculate the data. The total value of all estimators is f = 18,001 and p <0.0001. Results : Although all variables were included in the model, the BMI was considered the greatest explanatory factor for fatness. Aerobic endurance was assessed in direct proportion to age, sit and reach test, crunch test, plank, and long jump test. As the distance increased, the% fat ratio decreased (p <0.001), and the fat ratio decreased with the decrease in the T test (p <0.001). Conclusions: In this study, it was determined that body fat ratio determined by BMI, body fat percentage decreased with increasing aerobic endurance, body fat ratio was negatively correlated with aerobic fitness and lean body ratio. It was also determined that aerobic fitness was positively correlated with age, sit and reach, crunch test, plank, standing long jump and T test.

scholarly journals Pneumonia Caused by Adenovirus Genotype 55 in an Army Recruit Training Center

2016 ◽  
Vol 90 (4) ◽  
pp. 365-368 ◽  
Author(s):  
Jin Gu Yoon ◽  
Saem Na Lee ◽  
Jung Min Lee ◽  
Ji Yun Noh ◽  
Joon Young Song ◽  
...  
Keyword(s):  
Training Center ◽  
Recruit Training ◽  
Army Recruit

scholarly journals Gender Differences in the Physical Demands of British Army Recruit Training

2009 ◽  
Vol 174 (8) ◽  
pp. 811-816 ◽  
Author(s):  
Sam D. Blacker ◽  
David M. Wilkinson ◽  
Mark P. Rayson
Keyword(s):  
Gender Differences ◽  
British Army ◽  
Physical Demands ◽  
Recruit Training ◽  
Army Recruit

scholarly journals The International Physical Activity Questionnaire (IPAQ): a study of concurrent and construct validity

2006 ◽  
Vol 9 (6) ◽  
pp. 755-762 ◽  
Author(s):  
Maria Hagströmer ◽  
Pekka Oja ◽  
Michael Sjöström
Keyword(s):  
Physical Activity ◽  
Construct Validity ◽  
Body Fat ◽  
Aerobic Fitness ◽  
International Physical Activity Questionnaire ◽  
Activity Monitor ◽  
Short Version ◽  
Physical Activity Questionnaire ◽  
Percentage Body Fat ◽  
Activity Questionnaire

AbstractIntroductionThe International Physical Activity Questionnaire (IPAQ) was developed to measure health-related physical activity (PA) in populations. The short version of the IPAQ has been tested extensively and is now used in many international studies. The present study aimed to explore the validity characteristics of the long-version IPAQ.Subjects and methodsForty-six voluntary healthy male and female subjects (age, mean±standard deviation: 40.7±10.3 years) participated in the study. PA indicators derived from the long, self-administered IPAQ were compared with data from an activity monitor and a PA log book for concurrent validity, and with aerobic fitness, body mass index (BMI) and percentage body fat for construct validity.ResultsStrong positive relationships were observed between the activity monitor data and the IPAQ data for total PA (ρ = 0.55, P < 0.001) and vigorous PA (ρ = 0.71, P < 0.001), but a weaker relationship for moderate PA (ρ = 0.21, P = 0.051). Calculated MET-h day−1 from the PA log book was significantly correlated with MET-h day−1 from the IPAQ (ρ = 0.67, P < 0.001). A weak correlation was observed between IPAQ data for total PA and both aerobic fitness (ρ = 0.21, P = 0.051) and BMI (ρ = 0.25, P = 0.009). No significant correlation was observed between percentage body fat and IPAQ variables. Bland–Altman analysis suggested that the inability of activity monitors to detect certain types of activities might introduce a source of error in criterion validation studies.ConclusionsThe long, self-administered IPAQ questionnaire has acceptable validity when assessing levels and patterns of PA in healthy adults.

scholarly journals Alterations in Growth and Body Composition During Puberty: III. Influence of Maturation, Gender, Body Composition, Fat Distribution, Aerobic Fitness, and Energy Expenditure on Nocturnal Growth Hormone Release1

1998 ◽  
Vol 83 (5) ◽  
pp. 1440-1447 ◽  
Author(s):  
James N. Roemmich ◽  
Pamela A. Clark ◽  
Vu Mai ◽  
Stuart S. Berr ◽  
Arthur Weltman ◽  
...  
Keyword(s):  
Body Composition ◽  
Energy Expenditure ◽  
Body Fat ◽  
Aerobic Fitness ◽  
Compartment Model ◽  
Fat Distribution ◽  
Bone Age ◽  
Body Fat Distribution ◽  
Time Curve ◽  
And Gender

We examined the relationships among gender, sexual maturation, four-compartment model estimates of body composition, body fat distribution (magnetic resonance imaging for abdominal visceral fat and anthropometrics), aerobic fitness, basal and total energy expenditure, and overnight GH release in an ultrasensitive chemiluminescence assay in healthy prepubertal and pubertal boys (n = 18 and 11, respectively) and girls (n = 12 and 18, respectively). Blood samples were withdrawn every 10 min from 1800–0600 h to determine the area under the serum GH-time curve (AUC), sum of the GH peak heights (Σ GH peak heights), and the mean nadir GH concentration. GH release was greater in the pubertal than prepubertal subjects due to an increase in Σ GH peak heights (43.8 ± 3.6 vs. 24.1 ± 3.5 ng·mL−1, P = 0.0002) and mean nadir (1.7 ± 0.2 vs. 0.7 ± 0.2 ng·mL−1, P = 0.0002), but not peak number (4.3 ± 0.2 vs. 4.5 ± 0.2). The girls had a greater Σ GH peak heights (39.0 ± 3.5 vs. 28.8 ± 3.6 ng·mL−1, P = 0.05) and mean nadir concentration (1.4 ± 0.2 vs. 0.9 ± 0.2 ng·mL−1, P = 0.05) than the boys. Significant inverse relationships existed between Σ GH peak heights (r = −0.35, P = 0.06) or mean nadir (r = −0.39, P = 0.04) and four-compartment percent body fat for all boys but not for all girls or when combining all subjects. For all girls, significant inverse relationships existed between Σ GH peak heights (r = −0.39, P = 0.03) or mean nadir (r = −0.37, P = 0.04) and waist/hip ratio. Similar inverse relationships in all boys or all subjects were not significant. Forward stepwise regression analysis determined that bone age (i.e. maturation, primary factor) and gender were the significant predictors of AUC, Σ GH peak heights, and mean nadir. The influence of maturation reflects rising sex steroid concentrations, and the gender differences appear to be because of differences in estradiol concentrations rather than to body composition or body fat distribution.

Aerobic fitness and physical activity are inversely associated with body fat, dyslipidemia and inflammatory mediators in children and adolescents living with HIV

2018 ◽  
Vol 37 (1) ◽  
pp. 50-58 ◽  
Author(s):  
Luiz Rodrigo Augustemak de Lima ◽  
Isabela de Carlos Back ◽  
Everson Araújo Nunes ◽  
Diego Augusto Santos Silva ◽  
Edio Luiz Petroski
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Body Fat ◽  
Aerobic Fitness ◽  
Inflammatory Mediators ◽  
Living With Hiv

Aerobic fitness in prepubertal children according to level of body fat

2010 ◽  
Vol 99 (12) ◽  
pp. 1854-1860 ◽  
Author(s):  
Magnus Dencker ◽  
Anna Bugge ◽  
Bianca Hermansen ◽  
Karsten Froberg ◽  
Lars B Andersen
Keyword(s):  
Body Fat ◽  
Aerobic Fitness ◽  
Prepubertal Children
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