Bruna Thamyres Ciccotti Saraiva

Scopus Publications

Relationship of Self-Esteem with Different Domains and Intensities of Habitual Physical Activity in Community-Dwelling Adults
Milena S. Teixeira, Diego G.D. Christofaro, Leandro D. Delfino, Bruna T.C. Saraiva, Amanda B. Santos, Enrique G.F. Leite, Kathryn Gonzales, Gerson Ferrari, Mara C. Lofrano-Prado, and William R. Tebar
Ovid Technologies (Wolters Kluwer Health)
ABSTRACT Introduction Self-esteem has been positively associated with physical activity, but it is not clear whether different domains and intensities of physical activity are differently related to self-esteem in community-dwelling adults. This study aimed to analyze the relationship between self-esteem and different domains and intensities of physical activity in adults. Methods This cross-sectional study included a randomly selected sample of 252 community-dwelling adults (mean age: 42.6 ± 17.2 yr), of whom 58.8% were female. Self-esteem and physical activity domains (occupational physical activity, exercise and sports in leisure, and leisure and commuting physical activity) were assessed using questionnaires, and physical activity intensities were objectively measured using accelerometry. Age, sex, socioeconomic status, and body mass index were adopted as covariates. Results Self-esteem scores were positively associated with occupational physical activity (β = 1.29; 95% confidence interval (CI), 0.17–2.40) and exercise and sports in leisure (β = 0.81; 95% CI, 0.14–1.49). Being physically active in at least one physical activity domain was associated with 88% lower odds of presenting low self-esteem (odds ratio, 0.12; 95% CI, 0.02–0.80). Conclusion Self-esteem was cross-sectionally associated with both occupational and exercise/sports physical activity, as well as with being physically active in at least one physical activity domain. Efforts to promote mental health in community-dwelling adults should consider domain-specific physical activity, regardless of physical activity intensity.

Effects of 12 weeks of functional training vs. Muay Thai on cardiac autonomic modulation and hemodynamic parameters in older adults: a randomized clinical trial
Bruna T. C. Saraiva, Emerson Franchini, Alex S. Ribeiro, Luís A. Gobbo, Marília A. Correia, Luiz C. M. Vanderlei, Gerson Ferrari, William R. Tebar, and Diego G. D. Christofaro
Springer Science and Business Media LLC

Association of parent-child health parameters and lifestyle habits - the “epi-family health” longitudinal study protocol
Diego Giulliano Destro Christofaro, William Rodrigues Tebar, Claudiele Carla Marques da Silva, Bruna Thamyres Ciccotti Saraiva, Amanda Barbosa Santos, Ewerton Pegorelli Antunes, Enrique Gervazoni Ferreira Leite, Isabella Cristina Leoci, Victor Spiandor Beretta, Gerson Ferrari,et al.
Springer Science and Business Media LLC
Abstract Background Lifestyle and habits, cardiovascular risk factors (CRF), bone and mental health, dietary habits, physical activity, among others are developed in childhood and adolescence. Family environment has shown to play an important role in these outcomes. However, whether the parent-child relationship lifestyle habits and health parameters can be influenced by physical activity patterns still unclear. The objective of this study will be to monitor and investigate the associations between lifestyle habits between parents and their children longitudinally, as well as verify whether in more active parents, the possible associations with lifestyle habits are different from those of parents considered less active. Methods The sample will consist of parents (father, mother, or both) and their children /adolescents. The participants will be recruited through public call by flyers spread across all the regions of the city and also through social media. The health parameters will include cardiovascular (cardiac autonomic modulation, blood pressure and resting heart rate), bone mineral density, anthropometric indices, handgrip strength, mental health (quality of life, anxiety and depression symptoms and stress), self-reported morbidities and musculoskeletal pain. Lifestyle habits will include physical activity levels, sedentary behavior, sleep parameters, eating patterns, smoking and alcohol consumption. Sociodemographic variables of age, sex, ethnicity and socioeconomic status will be considered as covariates. The follow-up visits of data collection will be scheduled after a period of 12 months from the baseline assessment during every twelve months. Discussion The family environment has great potential to determine lifestyle habits in children and adolescents. Based on the results presented in the present study, we hope that health promotion actions can be better designed in the family environment.

Effect of 12 weeks of Judo Practice and Ball Games on Neck and Low Back Pain in Children and Adolescents: A Randomized Clinical Trial
Bruna T. C. Saraiva, William R. Tebar, Kanji Ujita, Amanda B. dos Santos, Gerson Ferrari, Victor S. Beretta, Claudiele C. M. da Silva, Crystian B. Oliveira, and Diego G. D. Christofaro
Springer Science and Business Media LLC

Effects of Muay Thai Practice on Self-Esteem, Body Perception, and Quality of Life in Adolescents with Overweight/Obesity
Bruna Thamyres Ciccotti Saraiva, Rafael Rodrigues Henn, William Rodrigues Tebar, Amanda Barbosa dos Santos, Ewerton Pegorelli Antunes, Gerson Ferrari, and Diego Giulliano Destro Christofaro
Ovid Technologies (Wolters Kluwer Health)
ABSTRACT Introduction The aim of this study was to analyze the effects of 16 wk of Muay Thai practice on body perception, self-esteem, and quality of life in adolescents with overweight/obesity. Methods The sample consisted of adolescents with overweight/obesity, aged 10–17 yr. Overweight/obesity was confirmed using body mass index (BMI) and body fat (BF). Body mass and height were measured, from which BMI was calculated. BF was assessed using dual-energy x-ray absorptiometry. Body perception was measured using the Brazilian Silhouette Scale for Children, self-esteem was measured using the Rosenberg Self-Esteem Scale, and quality of life was measured using the 36-Item Short Form Health Survey. The Muay Thai intervention lasted 16 wk, with the initial 4 wk intended for adaptation and familiarization. Sessions were held three times per week on nonconsecutive days for 1.5 h. Protective equipment and devices, such as gloves, Thai pads, gauntlets, and head and rib protectors, were used. Training intensity was maintained between moderate and high according to the rate of perceived exertion scale. The control group did not perform any type of systematic training. Results There was a statistically significant group effect for self-esteem only (P < 0.01; effect size (η 2) = 0.13). When analyzing η 2, there was a group × time interaction in the pain domain of quality of life (P = 0.07; η 2 p = 0.11) considered medium to large. Furthermore, increases were observed in the prevalence of healthy self-esteem (before, 65.0%; after, 73.1%) and satisfaction with body image (before, 0%; after, 3.8%) in the Muay Thai group. Conclusion Muay Thai led to increased prevalences of individuals satisfied with their body image and with healthy self-esteem, as well as an increase in the pain domain score of quality of life in adolescents with overweight/obesity.

Replacing sedentary time or light physical activity with moderate physical activity is associated with a lower prevalence of back pain: a cross-sectional study using isotemporal analysis: Isotemporal substitution and LBP prevalence
Crystian B.S. Oliveira, Tatiana M Damato, William R. Tebar, Guilherme H.D. Grande, Rubens V.C. Vidal, Gerson Ferrari, Bruna T.C. Saraiva, and Diego G.D. Christofaro
Elsevier BV

Effects of 16-week Muay Thai practice on cardiovascular parameters in children and adolescents with overweight/obesity
Bruna T. C. Saraiva, Emerson Franchini, Luiz Carlos M. Vanderlei, Vinícius F. Milanez, William R. Tebar, Victor S. Beretta, Raphael M. Ritti-Dias, and Diego G. D. Christofaro
Springer Science and Business Media LLC

Cardiac autonomic modulation did not differ between normal weight and overweight adults if they reach recommended levels of physical activity
William R. Tebar, Luiz Carlos M. Vanderlei, Bruna T. C. Saraiva, Marielen T. Batista, Leandro D. Delfino, Gerson Ferrari, Raphael M. Ritti-Dias, and Diego G. D. Christofaro
Springer Science and Business Media LLC

Association of Early Sports Practice with Cardiovascular Risk Factors in Community-Dwelling Adults: A Retrospective Epidemiological Study
Gabriela C. R. da Silva, William R. Tebar, Bruna T. C. Saraiva, Breno Q. Farah, Luiz Carlos M. Vanderlei, Gerson Ferrari, and Diego Giulliano Destro Christofaro
Springer Science and Business Media LLC
Abstract Background Sports practice in childhood and adolescence has been inversely related to the chances of developing cardiovascular risk factors (CRFs). However, it is not clear whether sports practice in childhood and adolescence could be inversely related to CRF in adult life. Objectives This study aimed to analyze the association between early sports practice and cardiovascular risk factors in a randomized sample of community-dwelling adults. Methods For this, 265 adults aged ≥ 18 years composed the sample. Cardiovascular risk factors of obesity, central obesity, diabetes, dyslipidemia, and hypertension were collected. Early sports practice was retrospectively self-reported using an appropriate instrument. Total physical activity level was assessed by accelerometry. The association between early sports practice and cardiovascular risk factors in adulthood was analyzed by binary logistic regression, adjusted for sex, age, socioeconomic status, and moderate-to-vigorous physical activity. Results Early sports practice was observed in 56.2% of the sample. The prevalence of central obesity (31.5 vs. 50.0%; p = 0.003), diabetes (4.7% vs. 13.7%; p = 0.014), dyslipidemia (10.7% vs. 24.1%; p = 0.005), and hypertension (14.1% vs. 34.5%; p = 0.001) was lower in participants who reported early sports practice. Participants who reported early sports practice in childhood and adolescence were, respectively, 60% (OR = 0.40; 95% CI 0.19–0.82) and 59% (OR = 0.41; 95% CI 0.21–0.82) less likely to have hypertension in adult life when compared to those with no early sports practice, independently of sex, age, socioeconomic status, and habitual physical activity level in adulthood. Conclusion Early sports practice in childhood and adolescence was a protective factor for hypertension in adulthood.

Effects of nine months practice of martial arts on aerobic fitness in children and adolescentes
B.T.C. Saraiva, R.M. Ritti-Dias, C.C. Scarabottolo, A.L.F. da Silva, W.R. Tebar, and D.G.D. Christofaro
Elsevier BV

Association between Diet and Adiposity in Adults: Influence of Sedentary Behavior Patterns
Victor Spiandor Beretta, William Rodrigues Tebar, Catarina Covolo Scarabottolo, Leandro Dragueta Delfino, Bruna Thamyres Ciccotti Saraiva, Amanda Barbosa Santos, Ewerton Pegorelli Antunes, Isabella Cristina Leoci, Gerson Ferrari, and Diego Giulliano Destro Christofaro
MDPI AG
This study analyzed the influence of sedentary behavior (SB) on the association between dietary patterns and adiposity in community-dwelling adults. Eight hundred and forty-three adults (age: 56.5 ± 18.3 years) participated in this cross-sectional epidemiological study. Dietary patterns were evaluated using self-report questions regarding the weekly frequency of consumption of certain foods. Adiposity was determined using anthropometric measurements of weight, waist circumference, and height. SB was evaluated according to the time spent on screen devices. The usual physical activity level and socioeconomic status were considered confounding factors. Associations were determined using multivariate linear models with simultaneous adjustments for confounding variables. A statistical analysis indicated that fruit consumption was negatively related to the body mass index, regardless of the adjustment for SB domains. Red meat consumption was positively related to the body mass index, and fried food consumption was positively related to the waist-to-height ratio, regardless of the adjustment for SB domains. The consumption of fried food was positively associated with global and central adiposity after the adjustments for confounding factors and time spent on screen devices. We concluded that dietary habits are related to adiposity in adults. However, SB domains seem to influence the relationship between body adiposity and dietary habits, mainly regarding the consumption of fried foods.

Relationship Between Heart Rate Variability and Resting Heart Rate in Accordance with the Physical Activity Level of Children and Adolescents: A Cross-Sectional Study
Bruna Thamyres Ciccotti Saraiva, Luiz Carlos Marques Vanderlei, William Rodrigues Tebar, Gabriela Caroline Rodrigues da Silva, Vinícius Yukio Botelho Suetake, Raphael Mendes Ritti-Dias, and Diego Giulliano Destro Christofaro
Springer Science and Business Media LLC

Comparison of bone mineral density according to domains of sedentary behavior in children and adolescents
Diego Giulliano Destro Christofaro, William Rodrigues Tebar, Bruna Thamyres Ciccotti Saraiva, Gabriela Caroline Rodrigues da Silva, Amanda Barbosa dos Santos, Gregore Iven Mielke, Raphael Mendes Ritti-Dias, and Jorge Mota
Springer Science and Business Media LLC
Abstract Background Somatic maturation and the age at onset of puberty are closely related to bone mineral density (BMD), and are potential confounders of the associations between physical activity, sedentary behavior (SB) and BMD in adolescents. Thus the aim was compare BMD at different anatomical sites according to different domains of SB. Methods The sample consisted of 88 young people (54 boys and 34 girls; 9.5 ± 1.5 years). The self-reported SB was measured by the time spent on TV, computer, video game and smartphone. BMD at each location and throughout the body was assessed by DEXA. Physical activity was assessed by a questionnaire. The comparison of the different types of BMD sites according to the SB levels for each screen device and the total SB were analyzed by Covariance Analysis (ANCOVA). Results Whole-body BMD was higher in young people with low total SB (Total BMD = 0.957 ± 0.042) than in those with moderate (Total BMD = 0.921 ± 0.053) and high SB (Total BMD = 0.929 ± 0.051) (p-value = 0.011). Children and adolescents with low total SB had higher BMD legs (0.965 ± 0.056) than young people with high total SB (BMD legs = 0.877 ± 0.209), but this relationship was attenuated when the analyzes were adjusted for physical activity (p-value = 0.068). Conclusion Adolescents with high sedentary behavior tend to have lower whole body bone mineral density than those with low sedentary behavior.

Relationship of sleep quality with screen-based sedentary time and physical activity in adolescents — the moderating effect of body mass index
Tatiana M. Damato, William R. Tebar, Crystian B. S. Oliveira, Bruna T. C. Saraiva, Priscila K. Morelhao, Raphael M. Ritti-Dias, and Diego G. D. Christofaro
Springer Science and Business Media LLC

Acute Effects of Muay Thai on Blood Pressure and Heart Rate in Adolescents with Overweight/Obesity
Bruna Thamyres Ciccotti Saraiva, Wagner Luiz do Prado, Luiz Carlos Marques Vanderlei, Vinícius Flávio Milanez, Tatiana Machado de Mattos Damato, Amanda Barbosa dos Santos, William Rodrigues Tebar, and Diego Giulliano Destro Christofaro
MDPI AG
Background: To analyze the effects of a single session of Muay Thai (MT) on blood pressure and heart rate in adolescents with overweight/obesity. Methods: A total of 27 adolescents with overweight/obesity (12.85 ± 2.08 years), 13 girls and 14 boys, performed 60 min of MT composed of general and modality-specific exercises, as well as combat at the end. Anthropometric measurements were taken and body fat (BF) was measured using DEXA. Excess weight was attested via the body mass index (BMI) and BF. Systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate (HR) were measured by an oscillometric device before, immediately after MT, and 10, 20 and 30 min of recovery. Results: SBP decreased in boys after 20 min (d = −0.73) and 30 min (d = −0.78) of recovery, and in girls after 20 min (d = −0.56). DBP decreased in girls immediately after the session (d = −0.90) and after 10 min (d = −1.00); for the total sample, when analyzed across sex, DBP decreased immediately after the session (d = −0.70) and after 10 min (d = −0.52). No effect of MT on HR recovery was observed. Conclusions: A single MT session induces positive changes in blood pressure, with a greater impact on SBP in girls.

Effect of Different Sports Practice on Sleep Quality and Quality of Life in Children and Adolescents: Randomized Clinical Trial
Camila Cassemiro Rosa, William Rodrigues Tebar, Crystian Bittencourt Soares Oliveira, Breno Quintella Farah, Juliano Casonatto, Bruna Thamyres Ciccotti Saraiva, and Diego Giulliano Destro Christofaro
Springer Science and Business Media LLC
Abstract Background Sports practice can promote several health benefits in pediatric populations; nonetheless, most of the studies that investigated these benefits are of cross-sectional design. Thus, our objective was to verify the effectiveness of two types of physical activities through sports, judo and ball games (soccer, volleyball, handball, and basketball) on the quality of sleep and life of Brazilian children and adolescents. Methods The study is a randomized clinical trial, conducted with 65 participants of both sexes (6–15 years old) in a philanthropic institution in Brazil. The variables investigated were the quality of sleep and life, using the mini-sleep questionnaire and KidsCreen-52 questionnaires (this instrument has a scale ranging from 0 to 100, where 100 is the best value for each domain), respectively. The interventions carried out during 12 weeks (twice a week) were judo and ball games. In the statistical analysis, analysis of variance (ANOVA) for repeated measures was used and the level of statistical significance used was 5%. Results Judo (P = 0.032) and ball games (P = 0.005) contributed to improving the quality of sleep in the participants. Considering the score of the domains of quality of life, judo and ball games significantly increased the perception of health and physical activity [mean = 6.9 (8.3%) and 8.91 (12.2%) points, respectively], autonomy [mean = 5.81 (7.3%) and 5.00 (6.9%) points], friends and social support (mean = 2.83 (3.8%) and 12.00 (15.9%) points), provocation and bullying [mean = 10.21 (18.1%) and 2.14 (4.1%) points]. Conclusion It is concluded that both judo and ball games brought benefits to the quality of sleep and life of children and adolescents. Health promotion actions should encourage the increase in sports practice in children and adolescents to improve sleep and quality of life.

Association between handgrip strength and bone mineral density of Brazilian children and adolescents stratified by sex: a cross-sectional study
Bruna Thamyres Ciccotti Saraiva, Ricardo Ribeiro Agostinete, Ismael Forte Freitas Júnior, Daniel Eduardo Rodrigues de Sousa, Luis Alberto Gobbo, William Rodrigues Tebar, and Diego Giulliano Destro Christofaro
Springer Science and Business Media LLC
Abstract Background To examine the association of handgrip strength (HGS) and bone mineral density (BMD) of Brazilian children and adolescents. Methods The sample included 243 children and adolescents aged from 4 to 15 years (9.3 ± 2.2 years), 171 males and 72 females. The following measurements were performed: weight, height, trunk length, and years to the peak height velocity (PHV). The percentage lean soft tissue (PLST), percentage fat mass (PFM), and BMD were obtained using Dual Energy X-ray Absorptiometry (DXA) and HGS using a dynamometer. Results In girls, HGS was positively associated with higher BMD, even after the adjustments, by arms [β = 0.006; p < 0.001], legs [β = 0.014; p < 0.001], pelvis [β = 0.019; p < 0.001], trunk [β = 0.013; p < 0.001], spine [β = 0.013; p = 0.008], and total body [β = 0.009; p < 0.001]. The same occurred in the boys, even after the adjustments a positive relationship was observed, whereas higher HGS was related to greater BMD in arms [β = 0.006; p < 0.001], legs [β = 0.017; p < 0.001], pelvis [β = 0.014; p < 0.001], trunk [β = 0.009; p < 0.001], spine [β = 0.008; p < 0.001], and total body [β = 0.007; p < 0.001]. Conclusion HGS was positively associated to BMD in boys and girls, regardless of age, PHV, PLST, and PFM.

Relationship of Cardiac Autonomic Modulation with Cardiovascular Parameters in Adults, According to Body Mass Index and Physical Activity
William R. Tebar, Raphael M. Ritti-Dias, Jorge Mota, Bruna T. C. Saraiva, Tatiana M. Damato, Leandro D. Delfino, Breno Q. Farah, Luiz Carlos M. Vanderlei, and Diego G. D. Christofaro
Springer Science and Business Media LLC

Association of parent-child physical activity: a review update of Brazilian studies – Report Card Brazil
William Rodrigues Tebar, Bruna Tamyres Ciccoti Saraiva, Tatiana Machado de Mattos Damato, Gabriela Caroline Rodrigues Silva, Camila Cassemiro Rosa, Jorge Mota, Crystian Bittencourt Oliveira, and Diego Giuliano Destro Christofaro
FapUNIFESP (SciELO)
Abstract This systematic review update aimed to search for new evidences about parent-child physical activity among Brazilian studies. A new literature search for Brazilian studies published until 31 December 2019 was performed in the databases Medline, Embase, Cinahl, Lilacs, Sport Discus, and SciELO by the combination of descriptors regarding children and adolescents, physical activity, and parental support, restricted to English and Portuguese language. As result, only one new study were included besides those from previous review which corroborated with previous findings about positive relationship of parent-child physical activity. The included studies (n=14) were presented according to geographical distribution, year of publication, research design and physical activity assessment method. Limitations and future directions about specific physical activity domains and weekly amount, as well as peers and environmental support were highlighted. This review findings reinforced that parental lifestyle behavior is an important factor for active lifestyle promotion among Brazilian children and adolescents.

Effects of 16 Weeks of Muay Thai Training on the Body Composition of Overweight/Obese Adolescents
B. Saraiva, C. C. Scarabottolo, D. Christofaro, Gabriela Castro da Silva, Junior Ismael Forte Freitas, L. C. Vanderlei, R. M. R. Dias and Flavio Milanez Vinicius

Effect of very vigorous physical activity on cardiac autonomic modulation in smokers and nonsmokers: An epidemiological study
Diego G D Christofaro, William R Tebar, Bruna T C Saraiva, Gabriela C R Silva, and Luiz Carlos M Vanderlei
Sociedade Brasileira de Pneumologia e Tisiologia
Cardiac autonomic modulation (CAM) is an important component of cardiovascular health,(1) and its reduction has been associated with increased risk of death.(2) Smoking has been associated with low CAM, because nicotine has a negative effect on cardiac vagal control and, consequently, on parasympathetic modulation.(3) In contrast, engaging in physical activity (PA) is an important lifestyle habit that has been positively associated with high CAM, because PA improves vagal activity.(4) Nonetheless, it is not clear in the literature whether different intensities of PA could eliminate or at least mitigate the relationship between smoking and reduced CAM. Our hypothesis was that very vigorous PA would mitigate the effects of smoking on CAM.

Relationship between domains of physical activity and cardiac autonomic modulation in adults: a cross-sectional study
William R. Tebar, Raphael M. Ritti-Dias, Jorge Mota, Breno Q. Farah, Bruna T. C. Saraiva, Tatiana M. M. Damato, Leandro D. Delfino, Beatriz A. S. Aguilar, Amanda B. dos Santos, Stefany C. B. Silva,et al.
Springer Science and Business Media LLC
AbstractThis study aimed to analyze the relationship of physical activity in different domains with cardiac autonomic modulation in adults. A sample of 252 adults was randomly selected, with mean age of 42.1 (± 16.5) years, being 58% of women. Cardiac autonomic modulation was assessed through indexes of heart rate variability in time (SDNN, RMSSD) and frequency (LF, HF) domains for linear method, and by Poincaré plot for non-linear method (SD1, SD2 components). Domains of PA (occupation, sport, leisure time/commuting, and total) were assessed by Baecke’s questionnaire. Variables of age, gender, socioeconomic status (questionnaire) and body mass index (objectively measures) were covariates. Occupational PA was positively related to LF (β = 2.39, 95% CI 0.24; 4.54), sports PA was positively related to SDNN (β = 3.26, 95% CI 0.18; 7.05), RMSSD (β = 4.07, 95% CI 0.31; 7.85), and SD1 (β = 2.85, 95% CI 0.11; 5.81), and leisure time/commuting PA was positively related to SDNN (β = 3.36, 95% CI 0.28; 6.70) and RMSSD (β = 3.53, 95% CI 0.46; 7.52) indexes. Total PA was related to RMSSD (β = 1.70, 95% CI 0.04; 3.72). Sports, leisure time/commuting, and total PA were related to higher parasympathetic modulation, while occupational PA was related to higher sympathetic modulation to the heart in adults.

Association between sedentary recreational time and cardiac autonomic modulation in adolescent boys: cross-sectional study
Breno Quintella Farah, Diego Giulliano Destro Christofaro, Aluísio Andrade-Lima, Bruna Thamyres Ciccotti Saraiva, Mauro Virgílio Gomes de Barros, Wagner Luiz do Prado, and Raphael Mendes Ritti-Dias
Springer Science and Business Media LLC

Sedentary behavior is more related with cardiovascular parameters in normal weight than overweight adolescents
William R Tebar, Raphael M Ritti Dias, Catarina C Scarabottolo, Fernanda C S Gil, Bruna T C Saraiva, Leandro D Delfino, Edner F Zanuto, Luiz Carlos M Vanderlei, and Diego G D Christofaro
Oxford University Press (OUP)
AbstractThis study analyzed the relationship between sedentary behavior and cardiovascular parameters in normal weight and overweight adolescents. The sample included 449 boys and 555 girls with mean age of 13 years from public schools, which were divided into five geographical regions, with data collections performed in one selected school from each region. Sedentary behavior was assessed by screen time on TV, computer, videogame and cell phone/tablet, with good reliability in adolescents. Physical activity was assessed by Baecke’s questionnaire, validated for adolescents. Measures of body weight, height and waist circumference were collected. Adolescents were classified as overweight or normal weight by cut-off points of body mass index for age and sex. Cardiovascular parameters were evaluated by oscillometric device and heart rate by specific monitor. Computer use was positively related to systolic blood pressure (SBP) (β = 0.35; 95%CI = 0.07–0.62) and diastolic blood pressure (DBP) (β = 0.25; 95%CI = 0.05–0.44) in normal weight but not in overweight adolescents. Similar results were observed for cell phone/tablet in SBP (β = 0.46; 95%CI = 0.20–0.72) and DBP (β = 0.36; 95%CI = 0.18–0.54), only for normal weight. The cluster of screen time was related to SBP in normal weight (β = 0.44; 95%CI = 0.03–0.84) and overweight (β = 0.60; 95%CI = 0.01–1.19). Screen time in computer and cell phone/tablet was more related to cardiovascular parameters in normal weight than overweight adolescents.

Physical activity is more related to adiposity in hypertensive than nonhypertensive middle-aged and older adults
William R. Tebar, Raphael M. Ritti-Dias, Bruna T.C. Saraiva, Catarina C. Scarabottolo, Daniel S. Canhin, Tatiana M.M. Damato, Beatriz A.S. Aguilar, and Diego G.D. Christofaro
Ovid Technologies (Wolters Kluwer Health)
Objective Adiposity is the main risk factor for hypertension and is negatively related to physical activity. However, it is not clear if this relationship is different according to hypertension. The present study aimed to analyze the relationship of physical activity in different domains with adiposity in hypertensive and nonhypertensive adults. Participants and methods A sample of 843 adults (61.6% of female) was randomly selected, with a mean age of 56.6 (±18.3) years. Diagnosed hypertension and the use of medicines were self-reported. Physical activity was assessed by questionnaire and blood pressure was measured by the oscillometric device. Adiposity indicators were as follows: BMI, waist circumference, and waist-to-height ratio (WHtR). Results Hypertension was reported by 44.7% of sample, being higher among older-aged, obese, elevated waist circumference and WHtR, and low physical activity groups. Physical activity was negatively related to BMI (leisure-time physical activity β = −0.070, total physical activity β = −0.082), waist circumference (leisure-time physical activity β = −0.031, total physical activity β = −0.037), and WHtR (leisure-time physical activity β = −4.917, total physical activity β = −5.996) in hypertensive adults. Hypertensive adults who had obesity were more likely to be less active at leisure physical activity [odds ratio (OR) = 2.25] and in total physical activity (OR = 2.46) than hypertensive adults with normal weight. Hypertensive adults with elevated waist circumference and elevated WHtR were more likely to be less active in total physical activity than those hypertensive adults with normal values (OR = 2.34 and 3.33, respectively). Conclusion Leisure time and total physical activity were related to adiposity only in hypertensive adults. Higher physical activity levels could be important to adiposity control in hypertensive population.

Bruna Thamyres Ciccotti Saraiva

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