Association of body fat percentage and heart rate variability measures of sympathovagal balance

AbstractBackground:Physical inactivity contributes to many health issues. The WHO-recommended physical activity for adolescents encompasses aerobic, resistance, and bone strengthening exercises aimed at achieving health-related physical fitness. Heart rate variability (HRV) and maximal aerobic capacity (VO2max) are considered as noninvasive measures of cardiovascular health. The objective of this study is to compare the effect of structured and unstructured physical training on maximal aerobic capacity and HRV among adolescents.Methods:We designed a single blinded, parallel, randomized active-controlled trial (Registration No. CTRI/2013/08/003897) to compare the physiological effects of 6 months of globally recommended structured physical activity (SPA), with that of unstructured physical activity (USPA) in healthy school-going adolescents. We recruited 439 healthy student volunteers (boys: 250, girls: 189) in the age group of 12–17 years. Randomization across the groups was done using age and gender stratified randomization method, and the participants were divided into two groups: SPA (n=219, boys: 117, girls: 102) and USPA (n=220, boys: 119, girls: 101). Depending on their training status and gender the participants in both SPA and USPA groups were further subdivided into the following four sub-groups: SPA athlete boys (n=22) and girls (n=17), SPA nonathlete boys (n=95) and girls (n=85), USPA athlete boys (n=23) and girls (n=17), and USPA nonathlete boys (n=96) and girls (n=84).Results:We recorded HRV, body fat%, and VO2 max using Rockport Walk Fitness test before and after the intervention. Maximum aerobic capacity and heart rate variability increased significantly while heart rate, systolic blood pressure, diastolic blood pressure, and body fat percentage decreased significantly after both SPA and USPA intervention. However, the improvement was more in SPA as compared to USPA.Conclusions:SPA is more beneficial for improving cardiorespiratory fitness, HRV, and reducing body fat percentage in terms of magnitude than USPA in adolescent individuals irrespective of their gender and sports activities.

Download Full-text

Whole-Body Vibration Training Improves Heart Rate Variability and Body Fat Percentage in Obese Hispanic Postmenopausal Women

Journal of Aging and Physical Activity ◽

10.1123/japa.2016-0087 ◽

2017 ◽

Vol 25 (3) ◽

pp. 395-401 ◽

Cited By ~ 6

Author(s):

Gregory Severino ◽

Marcos Sanchez-Gonzalez ◽

Michelle Walters-Edwards ◽

Michael Nordvall ◽

Oksana Chernykh ◽

...

Keyword(s):

Heart Rate ◽

Heart Rate Variability ◽

Postmenopausal Women ◽

Body Fat ◽

Whole Body Vibration ◽

Whole Body ◽

Body Fat Percentage ◽

Fat Percentage ◽

Vibration Training ◽

Whole Body Vibration Training

Download Full-text

Does body fat percentage predict post-exercise heart rate response in non-obese children and adolescents?

Journal of Pediatric Endocrinology and Metabolism ◽

10.1515/jpem-2016-0468 ◽

2017 ◽

Vol 30 (6) ◽

pp. 629-633 ◽

Cited By ~ 3

Author(s):

Tatjana Jezdimirovic ◽

Valdemar Stajer ◽

Sasa Semeredi ◽

Julio Calleja-Gonzalez ◽

Sergej M. Ostojic

Keyword(s):

Heart Rate ◽

Children And Adolescents ◽

Body Fat ◽

Heart Rate Recovery ◽

Autonomic Regulation ◽

Exercise Heart Rate ◽

Body Fat Percentage ◽

Obese Children ◽

Fat Percentage ◽

Post Exercise

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.

Download Full-text

Perfil y diferencias antropométricas y físicas de gimnastas de tecnificación de las modalidades de artística y rítmica (Anthropometric and physical differences of the gymnasts from the talent identification program of the artistic and rhythmic specialties

Retos ◽

10.47197/retos.v0i21.34606 ◽

2015 ◽

pp. 58-62

Author(s):

Marta Leyton Román ◽

Vicente Luis del Campo ◽

Rafael Sabido Solana ◽

Jesús Morenas Martín

Keyword(s):

Heart Rate ◽

Body Fat ◽

Isometric Strength ◽

Body Fat Percentage ◽

Fat Percentage ◽

Talent Identification ◽

Rhythmic Gymnastics ◽

Anthropometric Characteristics ◽

Jump Ability ◽

Body Circumferences

El objetivo del trabajo fue describir y comparar las características físicas y antropométricas de 25 gimnastas pertenecientes al grupo de tecnificación de la Federación Extremeña de Gimnasia. Estas gimnastas fueron clasificadas según modalidad gimnástica: artística femenina (GAF) (n=13) y gimnasia rítmica (GR) (n=12). Las variables dependientes incluyen valoraciones del porcentaje graso, a través de una báscula electrónica de columna con tallímetro (SECA 220cm); perímetros corporales, a través de un plicómetro (Holtain); diámetros y pruebas específicas de flexibilidad, a través de cinta métrica (CM 3m); frecuencia cardíaca, a través del test de Ruffier y uso de pulsómetro (Polar F6); fuerza isométrica del tren inferior, donde se utilizó una célula de carga (SSMAJ 5000N), y la capacidad de salto, a través de una plataforma de contacto (Lafayette CVP A73). Los resultados concluyen que GAF obtiene mejor resultado en las pruebas de flexibilidad (p<.05). Además, el grupo GR cuanto menor porcentaje graso posee mayor capacidad de salto SJ (r=-.774; p<.01) y CMJ (r=-.600; p<.05). En cambio, el grupo GAF cuanto mayor índice de masa corporal menor es su flexibilidad (p<.01). Se concluye que existen diferencias en composición corporal y pruebas físicas entre las modalidades gimnásticas femeninas de artística y rítmica, además de encontrar relaciones entre el rendimiento de dichas pruebas y variables antropométricas. Palabra clave: gimnasia, características antropométricas, flexibilidad, fuerza isométrica, salto.Abstract: The aim of our research was to describe the physical and anthropometric characteristics of 25 gymnasts from the talent identification program of the Extremeña Gymnastics Federation. Subjects were classified according to their specialty: women‘s artistic gymnastic (WAG) and rhythmic gymnastics (RG). The dependent variables include body fat percentage through an electronic scale column with stadiometer (SECA 220cm); body circumferences through a plicometer (Holtain); body diameters and specific tests of flexibility through a tape (CM 3m); a heart rate through Ruffier test and a heart rate monitor (Polar F6); isometric strength of lower extremities through a load cell (SSMAJ 5000N); and jumping ability through a contact mat (Lafayette CVP A73). The results concluded that the WAG group got the best results in flexibility tests (p<.05). Also, the RG group had lower body fat percentage and greater SJ jump ability (r=-.774; p<.01) and CMJ (r=-.600; p<.05). However, the WAG group showed a negative relation between body mass index and flexibility (p<.01). We conclude that there are differences in body composition and physical tests between the specialties/styles of women’s artistic gymnastics and female rhythmic gymnastics; we also found relationships between the performance of such tests and anthropometric variables.Key words: gymnastics, anthropometric characteristics, flexibility, isometric strength, jump.

Download Full-text

Metabolic Rate Prediction in Young and Old Men by Heart Rate, Ambient Temperature, Weight and Body Fat Percentage

Journal of Occupational Health ◽

10.1539/joh.14-0063-br ◽

2014 ◽

Vol 56 (6) ◽

pp. 519-525 ◽

Cited By ~ 6

Author(s):

Satoru Ueno ◽

Koichi Ikeda ◽

Tetsuo Tai

Keyword(s):

Heart Rate ◽

Metabolic Rate ◽

Ambient Temperature ◽

Body Fat ◽

Body Fat Percentage ◽

Fat Percentage ◽

Rate Prediction ◽

Old Men

Download Full-text

Physiological Predictors of Performance on the CrossFit “Murph” Challenge

Sports ◽

10.3390/sports8070092 ◽

2020 ◽

Vol 8 (7) ◽

pp. 92

Author(s):

Ja’Deon D. Carreker ◽

Gregory J. Grosicki

Keyword(s):

Heart Rate ◽

Blood Lactate ◽

Body Fat ◽

Maximal Oxygen Consumption ◽

Anaerobic Power ◽

Upper Body ◽

Physiological Parameter ◽

Body Fat Percentage ◽

Fat Percentage ◽

Run Time

We examined physiological predictors of performance on the CrossFit Murph challenge (1-mile run, 100 pullups, 200 pushups, 300 air squats, 1-mile run). Male CrossFit athletes (n = 11, 27 ± 3 years) performed a battery of physical assessments including: (1) body composition, (2) upper and lower body strength, (3) upper body endurance, (4) anaerobic power, and (5) maximal oxygen consumption. No less than 72 h later, participants completed the Murph challenge, heart rate was monitored throughout, and blood lactate was obtained pre-post. Correlations between physiological parameters and total Murph time, and Murph subcomponents, were assessed using Pearson’s correlations. Murph completion time was 43.43 ± 4.63 min, and maximum and average heart rate values were 185.63 ± 7.64 bpm and 168.81 ± 6.41 bpm, respectively, and post-Murph blood lactate was 10.01 ± 3.04 mmol/L. Body fat percentage was the only physiological parameter significantly related to total Murph time (r = 0.718; p = 0.013). Total lift time (25.49 ± 3.65 min) was more strongly related (r = 0.88) to Murph time than total run time (17.60 ± 1.97 min; r = 0.65). Greater relative anaerobic power (r = −0.634) and less anaerobic fatigue (r = 0.649) were related to total run time (p < 0.05). Individuals wanting to enhance overall Murph performance are advised to focus on minimizing body fat percentage and improving lift performance. Meanwhile, performance on the run subcomponent may be optimized through improvements in anaerobic power.

Download Full-text

Physiological Effects of Power Fitness Yoga Course in Community University

Asian Journal of Physical Education & Recreation ◽

10.24112/ajper.151773 ◽

2009 ◽

Vol 15 (2) ◽

pp. 22-28

Author(s):

Kuei Hui CHAN ◽

Ya Hsin HSIAO ◽

Chean Chean HUANG

Keyword(s):

Heart Rate ◽

Body Fat ◽

Diastolic Pressure ◽

Cardiovascular Fitness ◽

Step Test ◽

Body Fat Percentage ◽

Resting Heart Rate ◽

Fat Percentage ◽

Anthropometric Parameters ◽

Waist To Hip Ratio

LANGUAGE NOTE | Document text in Chinese; abstract also in English. The purpose of this study was to investigate the effects of the power fitness yoga course of Community University intervention on basic physiological parameters, anthropometric parameters as well as muscular and cardiopulmonary fitness. Fifteen females were participated this study. Subjects took a 90-minutes power fitness yoga course once a week for 12 weeks. The resting heart rate, blood pressure, body weight, body fat percentage, waist-to-hip ratio, body mass index, back strength, sit-up test as well as 3-minutes step test of subjects were tested before and after the course. Paired t-tests were used to compare the variables. The results showed that after 12 weeks of power fitness yoga course, the resting heart rate, diastolic pressure, body fat percentage and waist-to-hip ratio had significant decreased. The cardiopulmonary index of 3-minutes step test was significantly increased. There were no differences on the other variables (p>.05). The results indicate that 12-week power fitness yoga course in Community University can improve the resting heart rate, diastolic pressure, waist- to-hip ratio and body fat percentage as well as promote cardiovascular fitness. 本研究旨在探討社區大學之強力適能瑜珈課程對基礎生理值、體位值、肌肉及心肺適能等生理值的影響。研究以15名女性學員為對象，進行為期12週的研究，研究期間受試者在老師的指導下每週從事一次90分鐘的強力適能瑜珈運動。在實驗前、後均測量受試者之安靜心跳率、血壓、體重、體脂率、腰臀比、身體質量指數、背肌力、1分鐘屈膝仰臥起坐及體力指數，並以相依樣本t考驗比較前、後測各項數值之差異。結果顯示：經過12週的課程後，受試者之安靜心跳率、舒張壓、體脂率與腰臀比均顯著下降，且體力指數有顯著之提升，其他數值則無差異。本研究結果證實社區大學所開設之強力適能瑜珈課程能有效降低安靜心跳率、舒張壓、腰臀比與體脂率，並提升心肺適能。

Download Full-text