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 ◽  
...  

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.

2020 ◽  
pp. 1-8
Author(s):  
Cebrail Gençoğlu ◽  
İlhan Şen

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.


Author(s):  
Nivash Rugbeer ◽  
Demitri Constantinou ◽  
Georgia Torres

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.


2020 ◽  
Vol 10 (2) ◽  
pp. 33-35
Author(s):  
Preetu Gurung

Background: Cigarette smoking has remained a popular habit since ages. Most people are well aware of the deleterious effects of cigarette smoking yet continue to give a blind eye which dete­riorates overall public health. The purpose of the present study was to assess Peak Expiratory Flow Rate among smoking and nonsmoking staffs who work in Kathmandu Medical College. Methods: In this comparative cross-sectional study Peak Expiratory Flow Rate was obtained using Mini Wright’s Peak Flow Meter of 108 smokers and 108 nonsmokers in the age group ranging from 25-45 years. Those who never smoked or who have quit smoking for the past 2 years were grouped as nonsmokers and the smokers with history of smoking at least five or more cigarettes per day for at least two years were included in the study for measuring their Peak Expiratory Flow Rate. Data was collected, compiled and analyzed by using Statistical Package of Social Science (SPSS) software version16. Student ‘t’ test was used for group comparison. Results: The Peak Expiratory Flow Rate value was significantly reduced in the smokers (p value< 0.05). Mean Peak Expiratory Flow Rate was reduced with increasing age of the smokers. However, no significant difference was observed in Peak Expiratory Flow Rate with increase in the number of cigarettes smoked (p value> 0.05). Conclusions: In the study Peak Expiratory Flow Rate among smokers (367.13 ± 74.182) was lower than nonsmokers (471.39±60.842), which was statistically significant proving that cigarette smok­ing reduced peak expiratory flow rate.


2017 ◽  
Vol 30 (6) ◽  
pp. 629-633 ◽  
Author(s):  
Tatjana Jezdimirovic ◽  
Valdemar Stajer ◽  
Sasa Semeredi ◽  
Julio Calleja-Gonzalez ◽  
Sergej M. Ostojic

AbstractBackground:A correlation between adiposity and post-exercise autonomic regulation has been established in overweight and obese children. However, little information exists about this link in non-obese youth. The main purpose of this cross-sectional study was to describe the relationship between body fat percentage (BFP) and heart rate recovery after exercise [post-exercise heart rate (PEHR)], a marker of autonomic regulation, in normal-weight children and adolescents.Methods:We evaluated the body composition of 183 children and adolescents (age 15.0±2.3 years; 132 boys and 51 girls) who performed a maximal graded exercise test on a treadmill, with the heart rate monitored during and immediately after exercise.Results:A strong positive trend was observed in the association between BFP and PEHR (r=0.14; p=0.06). Hierarchical multiple regression revealed that our model explained 18.3% of the variance in PEHR (p=0.00), yet BFP accounted for only 0.9% of the variability in PEHR (p=0.16). The evaluation of the contribution of each independent variable revealed that only two variables made a unique statistically significant contribution to our model (p<0.01), with age contributing 38.7% to our model (p=0.00) while gender accounted for an additional 25.5% (p=0.01). Neither BFP (14.4%; p=0.16) nor cardiorespiratory endurance (5.0%, p=0.60) made a significant unique contribution to the model.Conclusions:Body fatness seems to poorly predict PEHR in our sample of non-obese children and adolescents, while non-modifiable variables (age and gender) were demonstrated as strong predictors of heart rate recovery. The low amount of body fat reported in non-obese young participants was perhaps too small to cause disturbances in autonomic nervous system regulation.


2018 ◽  
Vol 36 (2) ◽  
pp. 112-120 ◽  
Author(s):  
Alison F. Pittman

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.


2018 ◽  
Vol 6 (2) ◽  
pp. 28
Author(s):  
Nebahat Eler ◽  
Serdar Eler

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).


2021 ◽  
Vol 1 (1) ◽  
pp. 14
Author(s):  
Novi Vicahyani Utami ◽  
Leonardo Lubis ◽  
Agustina Agustina

The benefits of Tai Chi and Wai Tan Kung exercises on cardiopulmonary endurance and body composition have become a controversial issue. The survey analytical computational study was performed to investigate the differences in cardiopulmonary endurance and body composition among elderly members of Tai Chi, Wai Tan Kung, and elderly sedentary. The study involved 10 elderly members of Tai Chi, 10 elderly members of Wai Tan Kung, and 10 elderly sedentary. The Astrand-Rhyming’s step test was conducted to measure the cardiopulmonary endurance. While the measurement of body composition (body fat percentage) was done using a skinfold caliper. The data were analyzed with an unpaired t-test(p<0.05). The results of the study indicated that cardiopulmonary endurance (VO2 max) and body composition (body fat percentage) of Tai Chi elderly members were the best of both Wai Tan Kung elderly members and of elderly sedentary; while cardiopulmonary endurance and body composition of Wai Tan Kung elderly members were better than those of elderly sedentary.


2016 ◽  
Vol 33 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Michael R. Esco ◽  
Brett S. Nickerson ◽  
Sara C. Bicard ◽  
Angela R. Russell ◽  
Phillip A. Bishop

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.


2021 ◽  
Vol 27 (6) ◽  
pp. 621-626
Author(s):  
Eliane Cristina de Andrade Gonçalves ◽  
Ricardo Fernandes ◽  
Carlos Alencar Souza Alves Junior ◽  
Diego Augusto Santos Silva ◽  
Erasmo Benício Santos de Moraes Trindade

ABSTRACT Introduction: Low aerobic fitness levels are associated with excess body adiposity in adolescents. However, studies that have analyzed this association in adolescents have used different methods and measures to evaluate aerobic fitness, making it difficult to compare the results. Objective: To conduct a systematic review with meta-analysis of studies that have analyzed the association between aerobic fitness and anthropometric body adiposity indicators in adolescents aged 10-19 years. Methods: A systematic search was performed in May 2016, updated in March 2017, in the following electronic databases: LILACS (BIREME), Embase, MEDLINE (PubMed), Web of Science (Web of Knowledge), Scopus, and SPORTDiscus. Results: Twenty-three studies were selected. The meta-analysis indicated that as the aerobic fitness levels increased, the BMI, waist circumference and body fat percentage values of the adolescents decreased. Conclusion: There is a negative association between aerobic fitness (evaluated by measuring maximum oxygen uptake in the 20-meter Shuttle Run test) and the body fat percentage, BMI and waist circumference of adolescents and a negative association between aerobic fitness (assessed by measuring the number of laps in the 20-meter Shuttle Run test) and body fat percentage. However, caution is required in the interpretation of data due to the heterogeneity of the studies analyzed. Level of Evidence II; Systematic review of studies with level II of evidence.


2013 ◽  
Vol 28 (4) ◽  
pp. 207-211 ◽  
Author(s):  
Helena Liiv ◽  
Matthew A Wyon ◽  
Toivo Jürimäe ◽  
Meeli Saar ◽  
Jarek Mäestu ◽  
...  

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.


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