scholarly journals Body fatness in sedentary and active students with different body mass index

2021 ◽  
Vol 13 (1) ◽  
pp. 37-42
Author(s):  
Marzena Malara ◽  
Grażyna Lutosławska ◽  
Krzysztof Mazurek ◽  
Anna Kęska ◽  
Joanna Tkaczyk

Abstract Study aim: Numerous data have indicated that body fat stores undergo complicated regulation by genetic and environmental factors, including physical activity. However, the majority of studies did not take into account this aspect of lifestyle in proposed body fat limits. In this context it seems that a more precise and reliable classification of body fat is provided by the American Council on Exercise (ACE), which distinguishes individuals not only with respect to sex but also activity level. Material and methods: A total of 793 students (312 sedentary and 481 active) volunteered to participate in the study. Among sedentary participants 147 were male and 165 female. Among active subjects 206 were male and 275 were female. Active subjects were engaged in different modes of physical activity according to the study program. In all participants body mass index (BMI) was calculated. In participants with BMI 18.5–24.9 and BMI ≥ 25 body fat was determined using four skinfold measurements. Thereafter participants were classified according to the percentage of body fat using ranges for males and females provided by the American Council on Exercise (ACE) (essential fat, athletes, fitness, average and obese fatness). Results: None of the sedentary and active males with BMI 18.5–24.9 had high (obese) fat. In contrast, in sedentary males with BMI ≥ 25 16.4% were obese vs. 1.8% of obese active ones. In sedentary females BMI from 18.5 to 24.9 did not exclude obesity, which was found in 16.9% of participants. In sedentary females with BMI ≥ 25 most of the subjects (97.1%) were obese. In contrast, in active females with BMI ≥ 25 a similar percentage of participants had average and obese fat (53.3% and 46.7, respectively). Discussion: Our study clearly demonstrated that BMI as a simple measure of body composition provides false information concerning true adiposity in physically active male and female students. A similar BMI did not exclude marked differences in the percentage of body fat in sedentary and active students.

2018 ◽  
Vol 12 (2) ◽  
pp. 481
Author(s):  
Hilbert Silva Julio ◽  
Roberto Tauil Paladino ◽  
Andreia Beatriz Machado ◽  
Lucas Prado Siqueira ◽  
Lucas Reis Hausen ◽  
...  

RESUMOObjetivo: identificar o Nível de Atividade Física e Percentual de Gordura Corporal de escolares. Método: estudo quantitativo, transversal, por amostragem composta de 640 escolares (Idade: 10±1 anos; Massa Corporal, 37,25±13,90kg; Estatura, 1,45±0,08m; IMC, 17,50±5,04kg/m²). O NAF por meio PAQ-C, %GC pelo método de dobras cutâneas e o IMC. Resultados: há diferenças significativas (p < 0,01, d = 0,37) no escore do PAQ-C entre os sexos, com superioridade nos valores masculinos; foram encontradas diferenças significativas na distribuição dos níveis de atividade física divididos pelo sexo (p < 0,0001, d = 6,7) e na distribuição do %CG pelo sexo (p < 0,0001, d=0,28). Conclusão: foram identificados índices de obesidade dentre os escolares (43% e 53,10%, populações feminina e masculina, respectivamente) ao mesmo tempo em que essa população apresenta que é ativa ou moderadamente ativa fisicamente (67,07% e 67,56%, masculino e feminino, respectivamente); contudo, não foi identificada associação entre Nível de Atividade Física e Percentual de Gordura Corporal. Estes resultados corroboram os achados gerais da literatura que demonstram que o NAF não é fator determinante para o valor Percentual de Gordura Corporal. Descritores: Escolares; Obesidade Infantil; Promoção da Saúde; Saúde Pública; Educação Física e Treinamento; Educação em Saúde.ABSTRACT Objective: to identify the level of Physical Activity and Percentage of Body Fat of schoolchildren. Method: cross-sectional quantitative study of 640 schoolchildren (Age: 10 ± 1 years; Body Mass, 37.25 ± 13.90 kg; Stature, 1.45 ± 0.08 m; BMI, 17.50 ± 5.04 kg / m²). The NAF by PAQ-C,% GC by the skinfold method and the BMI. Results: there were significant differences (p <0.01, d = 0.37) in the PAQ-C score between the sexes, with superiority in the male values; (p <0.0001, d = 6.7) and in the CG distribution by gender (p <0.0001, d = 0.28). Conclusion: obesity rates among schoolchildren (43% and 53.10%, female and male, respectively) were identified at the same time as this population shows that they are active or moderately physically active (67.07% and 67.56 %, male and female, respectively); however, no association was identified between Physical Activity Level and Body Fat Percentage. These results corroborate the general findings of the literature that demonstrate that PAL is not a determinant factor for the Percentage of Body Fat. Decriptors: School Children; Obesity; Health Promotion; Public Health; Physical Education and Training; Health Education.RESUMENObjetivo: identificar el Nivel de Actividad Física y Porcentaje de Grasa Corporal de escolares. Método: estudio cuantitativo transversal, por muestreo compuesto de 640 escolares (Edad: 10 ± 1 años; Masa Corporal, 37,25 ± 13,90kg; Estatura, 1,45 ± 0,08m; IMC, 17,50 ± 5,04kg / m²). El NAF por PAQ-C,% GC por el método de pliegues cutáneos y el IMC. Resultados: hay diferencias significativas (p <0,01, d = 0,37) en la puntuación del PAQ-C entre los sexos, con superioridad en los valores masculinos; se encontraron diferencias significativas en la distribución de los niveles de actividad física divididos por el sexo (p <0,0001, d = 6,7) y en la distribución del %CG por el sexo (p <0,0001, d = 0,28). Conclusión: se identificaron índices de obesidad entre los escolares (43% y 53,10%, poblaciones femenina y masculina, respectivamente) al mismo tiempo que esa población presenta que es activa o moderadamente activa físicamente (67,07% y 67,56% masculino y femenino respectivamente); sin embargo, no se identificó, asociación entre Nivel de Actividad Física y Porcentaje de Grasa Corporal. Estos resultados corroboran los hallazgos generales de la literatura que demuestran que el NAF no es factor determinante para los valores Porcentaje de Grasa Corporal. Descriptores: Escolares; Obesidad Infantil; Promoción de la Salud, Salud Pública; Educación y Entrenamiento Físico; Educación en Salud.


Author(s):  
Gabriela Cárdenas-Fuentes ◽  
Camille Lassale ◽  
Miguel Ángel Martínez-González ◽  
María Grau ◽  
Jordi Salas-Salvadó ◽  
...  

Abstract Background Mechanisms underlying the associations of high levels of physical activity (PA) and adherence to the Mediterranean diet (MedDiet) with a better inflammatory profile remain unclear. Our objective was to assess the mediating role of changes in body mass index (BMI) and waist circumference (WC), as markers of body fat in the association of changes in PA and adherence to the MedDiet, with changes in the inflammatory profile. Method This study included 489 adults, aged 55–75 years, from the PREDIMED-Plus multicenter lifestyle intervention trial. An inflammatory score was calculated, based on 8 blood biomarkers: high-sensitivity C-reactive protein, interleukin 6, interleukin 8, interleukin 18, monocyte chemo-attractant protein-1, C-peptide, leptin, and regulated on activation, normal T-cell–expressed and secreted chemokine. Biomarkers, levels of PA, score of MedDiet adherence, BMI, and WC were measured at baseline and at 1-year follow-up. Linear regression models were fitted according to the Baron and Kenny framework for mediation analysis. Results Changes in BMI and WC mediated the association of both changes in PA and changes in the MedDiet adherence with the inflammatory score. Body mass index mediated 26% of the association of changes in total PA with the inflammatory profile, and 27% of the association of changes in the MedDiet, while WC mediated 13% and 12% of these associations, respectively. Conclusion In older adults at high cardiovascular risk, increasing PA levels and adherence to a MedDiet during 1 year were associated with a lower inflammatory score, which was partly mediated by a reduction in body fat. Clinical Trials Registration Number International Standard Randomized Controlled Trial Number: ISRCTN89898870; registration date July 24, 2014, retrospectively registered.


2019 ◽  
Vol 4 (3) ◽  
pp. 51
Author(s):  
Söğüt ◽  
Kaya ◽  
Altunsoy ◽  
Clark ◽  
Clemente ◽  
...  

The purposes of this study were to determine whether moderately physically active (MPA) and highly physically active (HPA) male (n = 96, age = 22.5 ± 1.7 years) and female (n = 85, age = 21.3 ± 1.6 years) young adults differed in their anthropometric obesity indices (AOIs), body fat percentage (BF%), and muscular strength, and also to examine the associations between physical activity level (PAL) and the abovementioned variables. Participants were measured for body height and weight, BF%, waist and hip circumferences, and maximal isometric grip strength. According to their PAL, estimated by the short version of the International Physical Activity Questionnaire, they were assigned to MPA and HPA subgroups. Regardless of gender, results indicated that participants in the MPA groups had significantly higher values of body weight, waist and hip circumference, BF%, and BMI than participants in the HPA groups. No significant differences were found between physical activity groups in terms of grip strength. The AOIs and BF% were found to be significantly and negatively correlated with the PAL in both genders. In conclusion, the findings of the study suggest that high habitual physical activity is associated with lower adiposity markers. However, the differences in the hand grip strength of the contrasting activity groups were negligible.


2015 ◽  
Vol 25 (suppl_3) ◽  
Author(s):  
H Radasevic ◽  
Z Sostar ◽  
S Jelusic ◽  
I Portolan Pajic ◽  
A Mestric ◽  
...  

Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2641 ◽  
Author(s):  
Rebeca Reyes-Garcia ◽  
Antonia Garcia-Martin ◽  
Santiago Palacios ◽  
Nancy Salas ◽  
Nicolas Mendoza ◽  
...  

Background: Milk products fortified with vitamin D may constitute an alternative to pharmacological supplements for reaching the optimal levels of serum 25-hydroxyvitamin D [25(OH)D]. Our aim was to analyze the response of serum 25(OH)D and its predictive factors in postmenopausal healthy women after a dietary intervention with a milk fortified with vitamin D and calcium. Methods: We designed a prospective study including 305 healthy postmenopausal women who consumed a fortified milk with calcium (900 mg/500 mL) and vitamin D3 (600 IU/500 mL) daily for 24 months. Results: The 25(OH)D concentrations at 24 months were correlated to weight, to body mass index, to the percentage of fat, triglycerides and to baseline 25(OH)D levels. We found significant differences in the levels of 25(OH)D at 24 months according to baseline 25(OH)D levels (p < 0.001) and body mass index (p = 0.019) expressed at quartiles. Multivariate analysis showed an association between levels of 25(OH)D after the intervention and at baseline 25(OH)D (Beta = 0.47, p < 0.001) and percentage of body fat (Beta = −0.227, p = 0.049), regardless of the body mass index. Conclusions: In healthy postmenopausal women, the improvement in 25(OH)D after an intervention with a fortified milk for 24 months depends mainly on the baseline levels of serum 25(OH)D and on the percentage of body fat.


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