scholarly journals Testing Bioimpedance to Estimate Body Fat Percentage across Different Hip and Waist Circumferences

2019 ◽  
Vol 2019 ◽  
pp. 1-5
Author(s):  
Viseth Long ◽  
Matthew Short ◽  
Spencer Smith ◽  
Martin Sénéchal ◽  
Danielle R. Bouchard
Keyword(s):  
Body Fat ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Entire Sample ◽  
Bod Pod ◽  
Standard Procedures ◽  
Significant Difference ◽  
Two Measures ◽  
The Difference ◽  
Average Measure

Many studies have validated the use of bioimpedance analysis (BIA) to quantify body fat percentage (BF%). However, it is unknown if some model types (i.e., hand to hand, foot to foot, and hand to foot) are differing in their validity depending on hip and waist circumferences. The purpose of this study was to compare the difference in BF% between three BIA models (i.e., hand to hand, foot to foot, and hand to foot) against the Bod Pod across different hip and waist circumferences. A total of 92 people aged 19-72 years were recruited in this study. After following the pretesting procedures recommended for BIA measures, BF% was estimated using three BIA models and the Bod Pod. Hip and waist circumferences were obtained using standard procedures and tertiles were computed. The Bland-Altman was plotted and 1-sample T-test as well as correlation between the average measure and the difference between the two measures was tested. Within the entire sample, across all BIA models, the Bland-Altman analysis showed significant difference compared to 0 and a significant difference for the proportional. However, when stratified by tertiles, the two measurements were only significant for the highest tertiles of hip and waist for all BIA apparatus (all p <0.01) and the proportional bias was nonsignificant for all tertiles and across all BIA apparatus. For the highest tertile of waist and hip, the average difference was between 1.67% and 3.29% compared with the Bod Pod estimation. In conclusion, the three BIA models offer a BF% measurement agreeing with the estimation obtained with the Bod Pod with the exception of people having a greater waist or greater hip.

Comparison of CrossFit Barbara and classic resistance trainings for the protection of strength performance during off-season in kickboxers

2020 ◽  
pp. 1-8
Author(s):  
Cebrail Gençoğlu ◽  
İlhan Şen
Keyword(s):  
Resistance Training ◽  
Body Mass ◽  
Body Fat ◽  
Bench Press ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Strength Performance ◽  
Significant Difference ◽  
Before And After ◽  
Push Up

BACKGROUND: The inability of athletes to train or the decrease in the intensity and frequency of training may cause athletes to lose performance. Particularly in view of the current COVID-19 pandemic, maintaining strength outside the normal framework provides an advantage to athletes for the next competitions. OBJECTIVE: To compare the CrossFit Barbara which can be applied easily at home during the off-season or some situations such as the epidemic limitation to classic resistance training methods used to maintain the strength performance of national kickboxers. METHODS: Forty-three national kickboxers, CrossFit (CF, n= 22), and resistance training (RT, n= 21), participated in this study. While CF performed 20 pull-ups, 30 push-ups, 40 sit-ups, and 50 squat exercises, RT performed bench press, lat pull down, leg press, biceps curl, and triceps extension exercises twice per week for six weeks. Before and after the six weeks, the following variables were measured; body mass (BM) and body fat percentage (FP), VO2max, bench press (BP), squat (SQ), leg strength (LS), hand grip strength (HGS), pull-up, push-up and counter movement jump (CMJ). RESULTS: BP (p< 0.001, F= 41.125, ηp2= 0.501), SQ (p< 0.001, F= 26.604, ηp2= 0.394), LS (p< 0.001, F= 15.234, ηp2= 0.271), push-up (p< 0.001, F= 31.978, ηp2= 0.438) and pull-up (p< 0.001, F= 24.410, ηp2= 0.373) values changed significantly in group-time interaction between CF and RT groups, while there was no significant difference for the BM (p= 0.198, F= 1.715, ηp2= 0.040), Fat (p= 0.265, F= 1.279, ηp2= 0.030), HGS (p= 0.665, F= 0.190, ηp2= 0.005, CMJ (p= 0.054, F= 3.946, ηp2= 0.088) and VO2max (p=0.747, F= 0.106, ηp2= 0.003). Furthermore, according to the before and after study values, BP, SQ, LS, and CMJ decreased significantly (p< 0.05) while BM, FP, HGS, VO2max, pull-up and push-up variables did not in the CF (p> 0.05). In the RT, the pull-up and push-up variables decreased significantly (p< 0.05) while there was no significant difference for BP, SQ, LS, HGS, VO2max, body mass, body fat percentage and CMJ (p> 0.05). CONCLUSION: CF Barbara workout was more effective in maintaining strength endurance performances, and RT in maintaining maximum strength performances. According to the individual performance needs of athletes, reasonable training method can be used to prevent performance decrement in the strength domain.

Comparison of High-Intensity Training Versus Moderate-Intensity Continuous Training on Cardiorespiratory Fitness and Body Fat Percentage in Persons With Overweight or Obesity: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

2021 ◽  
pp. 1-14
Author(s):  
Nivash Rugbeer ◽  
Demitri Constantinou ◽  
Georgia Torres
Keyword(s):  
Body Fat ◽  
High Intensity ◽  
Mean Difference ◽  
Moderate Intensity ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Continuous Training ◽  
High Intensity Training ◽  
Significant Difference ◽  
Intensity Training

Background: High-intensity training is comprised of sprint interval training (SIT) and high-intensity interval training (HIIT). This study compared high-intensity training with moderate-intensity continuous training (MICT) on cardiorespiratory fitness (CRF) and body fat percentage for overweight or obese persons. Methods: A systematic search of randomized controlled trials using the health science databases occurred up to April, 2020. Twenty-six studies were included for complete analysis. A total of 784 participations were analyzed. The unstandardized mean difference for each outcome measurement was extracted from the studies and pooled with the random effects model. Results: MICT was significantly better at improving CRF compared with SIT (mean difference = −0.92; 95% confidence interval, −1.63 to −0.21; P = .01; I2 = 10%). Furthermore, there was no significant difference between MICT versus HIIT on CRF (mean difference = −0.52; 95% confidence interval, −1.18 to 0.13; P = .12; I2 = 23%). There was no significant difference in body fat percentage between MICT versus HIIT and MICT versus SIT. Conclusions: MICT was significantly better at improving CRF than SIT in overweight or obese persons.

Post Exercise Change in Peak Expiratory Flow Rate and its Relation with Body Adiposity in Nepalese Settings

2020 ◽  
Vol 2 (1) ◽  
pp. 65-68
Author(s):  
Narayan Bahadur Mahotra ◽  
Vibina Aryal ◽  
Lava Shrestha ◽  
Sabita Kandel ◽  
Sait Pradhan ◽  
...  
Keyword(s):  
Body Fat ◽  
Peak Expiratory Flow ◽  
Flow Rate ◽  
Peak Expiratory Flow Rate ◽  
Step Test ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Post Exercise ◽  
Body Adiposity ◽  
Significant Difference

Background: The Queens College Step Test is used to determine aerobic fitness. Peak Expiratory Flow Rate (PEFR) is the maximum rate of forceful exhalation following full inspiration. PEFR primarily reflects bronchial airflow and depends on the voluntary effort and muscular strength of the individual. Studies that correlate ventilatory capacity with body fat percentage are rare in published literature in Nepalese settings. Body fat percentage is regarded as a better indicator of obesity recently. Hence, this study aims to find an association between post-exercise change in PEFR and body adiposity in the context of Nepal. Methods: A cross-sectional study was carried out from 20th July 2019 to 15th November in the laboratory of Clinical Physiology of Maharajgunj Medical Campus. Body fat percentage was measured by using OMRON BF 214.  Pre-exercise PEFR of each subject was recorded by using Wright’s peak flow meter. Post-exercise PEFR was also recorded after three minutes of Queen’s College step test, which is the submaximal exercise test, and change in PEFR was calculated and correlated with body fat percentage. Result: The study showed a negative correlation of change in PEFR with body fat percentage (r=-0.324; P<0.001). A significant difference (P = 0.002) was observed between different quartiles of body fat percentage. A highly significant difference (P = 0.003) was noted with the first and fourth quartiles. Conclusion: Less ventilatory adjustment in response to exercise was noted in subjects with more body fat percentage compared to those with less body fat percentage.

Effect of a School-Based Activity Tracker, Companion Social Website, and Text Messaging Intervention on Exercise, Fitness, and Physical Activity Self-Efficacy of Middle School Students

2018 ◽  
Vol 36 (2) ◽  
pp. 112-120 ◽  
Author(s):  
Alison F. Pittman
Keyword(s):  
Physical Activity ◽  
Body Fat ◽  
Self Efficacy ◽  
Text Messaging ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
School Students ◽  
Activity Tracker ◽  
Significant Difference ◽  
Text Messaging Intervention

This study examined the effect of a 10-week activity tracker, companion social website, and text messaging intervention on body mass index (BMI), body fat percentage, physical fitness, and physical activity (PA) self-efficacy of children. Children ( n = 98) were assigned to one of three groups: activity tracker group, text messaging group, and activity tracker + text messaging group. Pre-/posttest fitness, BMI, PA self-efficacy, and body fat percentage were measured. The activity tracker group had a significant increase in fitness, no significant difference in PA self-efficacy, and an increase in body fat percentage and BMI ( p < .05). The text messaging group had a significant increase in BMI ( p < .05). The activity tracker + text messaging group had no significant differences in fitness, BMI, PA self-efficacy, or body fat percentage. This study gives no clear support to the hypothesis that use of activity trackers and a text messaging intervention have a positive effect on fitness, PA self-efficacy, or body fat percentage.

scholarly journals A Study on Somatotype Profiles of the Players in Turkish Bocce National Team

2018 ◽  
Vol 6 (2) ◽  
pp. 28
Author(s):  
Nebahat Eler ◽  
Serdar Eler
Keyword(s):  
Body Weight ◽  
Body Fat ◽  
Body Fat Percentage ◽  
Muscular Force ◽  
Fat Percentage ◽  
Tennis Players ◽  
National Team ◽  
Significant Difference ◽  
Package Program ◽  
The Mean

The aim of this study is to determine the differences between the somatotype profiles and inter-disciplinary somatotype profiles of the Turkish Bocce National Team players. In this study, the mean age of the Turkish Men’s Bocce National Team (n-32) was determined as 21,75±2,35 (years), mean height was 177,62±1,03 (cm), mean body weight was 70,75±0,70 (kg), mean Body Mass Index (BMI) was 22,31±1,06 kg/m2, mean body fat percentage was 16,05±1%. The mean age of the Turkish Women’s Bocce National Team (n-21) was 21,76±2,12 (years), mean height was 165,33±4,24 (cm), mean body weight 55,14±6,36 (kg), mean BMI was 23,22±1,06 kg/m2 mean body fat percentage was 16,05±1%. The Heath-Carter method was used in determining the somatotype profiles of the players. the The statistical analyses in the study were made by using the SPSS 20.0 package program. Somatotype profile in men was determined endomorphic 3,21±0,33; mesomorph 5,04±1,11; ectomorphic 2,20±0,18 as mesomorphic-endomorphic; in women, endomorphic 3,33±1,42; mesomorph 5,08±0,26; ectomorphic 2,07±0,09 as mesomorphic-endomorphic. In this study, the somatotype profiles of the Turkish Bocce National Team players were determined, and a statistically significant difference was detected between the volo and petanque-raffa disciplines in men and women (p<0,05). It is believed that this difference stems from the physical performance requiring more muscular force in volo discipline than the petanque and raffa disciplines. In this study, the somatotype components are similar in tennis players in volo men group and the archers, judo players and Water polo players of the other groups (Men-women petanque and raffa group, Women volo group).

Agreement of BMI-Based Equations and DXA in Determining Body-Fat Percentage in Adults With Down Syndrome

2016 ◽  
Vol 33 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Michael R. Esco ◽  
Brett S. Nickerson ◽  
Sara C. Bicard ◽  
Angela R. Russell ◽  
Phillip A. Bishop
Keyword(s):  
Down Syndrome ◽  
Body Fat ◽  
Constant Error ◽  
Dual Energy ◽  
Body Fat Percentage ◽  
Regression Equations ◽  
Fat Percentage ◽  
Limits Of Agreement ◽  
X Ray ◽  
Significant Difference

The purpose of this investigation was to evaluate measurements of body-fat percentage (BF%) in 4 body-mass-index- (BMI) -based equations and dual-energy X-ray absorptiometry (DXA) in individuals with Down syndrome (DS). Ten male and 10 female adults with DS volunteered for this study. Four regression equations for estimating BF% based on BMI previously developed by Deurenberg et al. (DEBMI-BF%), Gallagher et al. (GABMI-BF%), Womersley & Durnin (WOBMI-BF%), and Jackson et al. (JABMI-BF%) were compared with DXA. There was no significant difference (p = .659) in mean BF% values between JABMI-BF% (BF% = 40.80% ± 6.3%) and DXA (39.90% ± 11.1%), while DEBMI-BF% (34.40% ± 9.0%), WOBMI-BF% (35.10% ± 9.4%), and GABMI-BF% (35.10% ± 9.4%) were significantly (p < .001) lower. The limits of agreement (1.96 SD of the constant error) varied from 9.80% to 16.20%. Therefore, BMI-based BF% equations should not be used in individuals with DS.

scholarly journals Anthropometry, Somatotypes, and Aerobic Power in Ballet, Contemporary Dance, and DanceSport

2013 ◽  
Vol 28 (4) ◽  
pp. 207-211 ◽  
Author(s):  
Helena Liiv ◽  
Matthew A Wyon ◽  
Toivo Jürimäe ◽  
Meeli Saar ◽  
Jarek Mäestu ◽  
...  
Keyword(s):  
Body Mass ◽  
Body Fat ◽  
Aerobic Capacity ◽  
Aerobic Power ◽  
Body Fat Percentage ◽  
Contemporary Dance ◽  
Fat Percentage ◽  
Ballet Dancers ◽  
Significant Difference ◽  
Classical Ballet

This study compared anthropometric variables, somatotypes, and aerobic capacity between three groups of dancers: classical ballet dancers (M 33, F 56), contemporary dancers (M 28, F 109), and dancesport dancers (M 30, F 30). The assumption was that different functional requirements should produce differences in the anthropometric and aerobic capacity variables among the three groups. Anthropometric data for body mass index (BMI) and somatotypes were measured. Body fat percentage was measured by dual-energy x-ray absorptiometry. Maximal oxygen consumption and aerobic power were measured during an incremental treadmill test until exhaustion. Dancesport athletes were taller compared with same gender contemporary dancers (p<0.05). Female ballet dancers had a lower body mass and BMI compared with their contemporary dance and dancesport equivalents (p<0.001). There was significant difference between dance styles in endomorphy (F2,221 = 8.773, p<0.001) and mesomorphy (F2,221 = 21.458, p<0.001) scores. Dancesport dancers had significantly greater VO2max values (p<0.01). It was concluded that female contemporary dancers are generally more muscular than their ballet counterparts, while dancesport dancers are taller and heavier, less muscular, with slightly greater adioposity compared to the classical ballet dancers. Ballet dancers had the lowest body fat percentage, weight, and BMI values. Dancesport dancers had greater aerobic capacity than the ballet dancers. Based on this study, we conclude that dancers in these three styles differ in some aspects of anthropometric variables, somatotypes, and aerobic capacity, but we cannot say is it because of the training or selection or both.

scholarly journals Effect of a Four Weeks Aerobic Training Intervention on Body Fat Percentage and Physical Fitness Indices among 5 to 6-year-old Obese, Overweight and Normal Weight Children: A Quasi-experimental Study

2019 ◽  
Vol 7 (1) ◽  
pp. 12
Author(s):  
Sanaz Akhavan Rad ◽  
Nasiri Mokhtar ◽  
Frank Kiwanuka
Keyword(s):  
Physical Fitness ◽  
Body Fat ◽  
Significant Influence ◽  
Aerobic Training ◽  
Normal Weight ◽  
Training Intervention ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Significant Difference ◽  
Quasi Experimental

Background: Optimal physical activity and functional fitness is fundamental in children. The purpose of this study was to assess the effect of a four-weeks aerobic training intervention on body fat percentage and selected physical fitness indices among five to six-years-old obese, overweight and normal weight children. Methods: A quasi-experimental pre-test/post-test study design was used; a statistical sample of 20 preschool girls participated in the study. One group (n=10) comprised of normal weight children and another for overweight and obese children (n=10). SPSS Version 21 was used for data analysis, a 95% level of significance was considered. Paired independent t-test and Analysis of Covariance were used to test the impact of the intervention within and between groups. Results: the intervention had a significant influence on body weight (p=0.023), BMI (p=0.025), flexibility (p=0.005) and muscular endurance (p=0.001) among children with obesity or overweight. It also showed a significant influence on balance (p=0.03) among normal weight children. However, it showed no significant difference between groups with exception of balance (p=0.002). Conclusions: The four-weeks training intervention had a significant difference on some physical fitness indices among children aged 5 to 6 years with obesity or overweight. Programmed aerobic training interventions can be used to achieve optimal body fat percentage and improve on some physical fitness indices among children.

Effect of Predicted Versus Measured Thoracic Gas Volume on Body Fat Percentage in Young Adults

2021 ◽  
pp. 1-5
Author(s):  
Jeremy B. Ducharme ◽  
Ann L. Gibson ◽  
Christine M. Mermier
Keyword(s):  
Young Adults ◽  
Body Fat ◽  
Body Fat Percentage ◽  
Fat Percentage ◽  
Men And Women ◽  
Percentage Body Fat ◽  
Thoracic Gas Volume ◽  
The Difference ◽  
Predictor Model ◽  
Gas Volume

The BodPod® (COSMED, Concord, CA) uses predicted (pTGV) or measured thoracic gas volume (mTGV) during estimations of percentage body fat (%BF). In young adults, there is inconsistent evidence on the variation between pTGV and mTGV, and the effect of sex as a potential covariate on this relationship is unknown. This study examined the difference between TGV assessments and its effect on %BF and potential sex differences that may impact this relationship. A retrospective analysis of BodPod® pTGV and mTGV for 95 men and 86 women ages 18–30 years was performed. Predicted TGV was lower than mTGV for men (−0.49 ± 0.7 L; p < .0001). For men, %BF derived by pTGV was lower than that by mTGV (−1.3 ± 1.8%; p < .0001). For women, no differences were found between pTGV and mTGV (−0.08 ± 0.6 L; p > .05) or %BF (−0.03 ± 0.2%; p > .05). The two-predictor model of sex and height was able to account for 57.9% of the variance in mTGV, F(2, 178) = 122.5, p < .0001. Sex corrected for the effect of height was a significant predictor of mTGV (β = 0.483 L, p < .0001). There is bias for pTGV to underestimate mTGV in individuals with a large mTGV, which can lead to significant underestimations of %BF in young adults; this was especially evident for men in this study. Sex is an important covariate that should be considered when deciding to use pTGV. The results indicate that TGV should be measured whenever possible for both men and women ages 18–30 years.

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