Navegando por Palavras-chave "waist circumference"
Agora exibindo 1 - 6 de 6
Resultados por página
Opções de Ordenação
- ItemSomente MetadadadosDietary Medium-Chain Triacylglycerols versus Long-Chain Triacylglycerols for Body Composition in Adults: Systematic Review and Meta-analysis of Randomized Controlled Trials(Routledge Journals, Taylor & Francis Ltd, 2015-03-04) Bueno, Nassib B. [UNIFESP]; Melo, Ingrid V. de; Florencio, Telma T.; Sawaya, Ana Lydia [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Univ Fed AlagoasObjective: To assess the effect of replacing dietary long-chain triacylglycerols (LCTs) with medium-chain triacylglycerols (MCTs) on body composition in adults.Methods: We conducted a meta-analysis of randomized controlled trials (RCTs), to determine whether individuals assigned to replace at least 5g of dietary LCTs with MCTs for a minimum of 4 weeks show positive modifications on body composition. We systematically searched, through July 2013, the CENTRAL, EMBASE, LILACS, and MEDLINE databases for RCTs that investigated the effects of MCT intake on body composition in adults. Two authors independently extracted data and assessed risk of bias. Weighted mean differences (WMDs) were calculated for net changes in the outcomes. We assessed heterogeneity by the Cochran Q test and I-2 statistic and publication bias with the Egger's test. Prespecified sensitivity analyses were performed.Results: in total, 11 trials were included, from which 5 presented low risk of bias. in the overall analysis, including all studies, individuals who replaced dietary LCT with MCT showed significantly reduced body weight (WMD, -0.69kg; 95% confidence interval [CI], -1.1 to -0.28; p = 0.001); body fat (-0.89kg; 95% CI, -1.27 to -0.51; p < 0.001), and WC (-1.78cm; 95% CI, -2.4 to -1.1; p < 0.001). the overall quality of the evidence was low to moderate. Trials with a crossover design were responsible for the heterogeneity.Conclusion: Despite statistically significant results, the recommendation to replace dietary LCTs with MCTs must be cautiously taken, because the available evidence is not of the highest quality.
- ItemSomente MetadadadosINFLUENCE OF PUBERTAL STAGE IN CUT OFF VALUES OF WAIST CIRCUMFERENCE ASSOCIATED TO ALTERED ANTHROPOMETRIC VARIABLES AND BLOOD PRESSURE AS CARDIOMETABOLIC RISK MARKERS IN BRAZILIANS ADOLESCENTS(Karger, 2017) dos Santos, Alves Ivete; Passos, Maria Aparecida [UNIFESP]; Ganen, Aline; Sampaio, Isa [UNIFESP]; Fisberg, Mauro [UNIFESP]
- ItemSomente MetadadadosPrevalence of metabolic syndrome in elderly Japanese-Brazilians(Int Scientific Literature, Inc, 2012-02-01) Xavier, Natasha Priscilla; Chaim, Rita Cristina; Agostinh Gimeno, Suely Godoy [UNIFESP]; Gouvea Ferreira, Sandra Roberta; Hirai, Amelia Toyomi [UNIFESP]; Rosa, Camila Moreno; Padovani, Carlos Roberto; Okoshi, Marina Politi; Okoshi, Katashi; Universidade de São Paulo (USP); Univ Cattolica Sacro Cuore; Universidade Federal de São Paulo (UNIFESP); Biosci InstBackground: Prevalence of individuals with a high cardiovascular risk is elevated in elderly populations. Although metabolic syndrome (MS) increases cardiovascular risk, information is scarce on the prevalence of MS in the elderly. In this study we assessed MS prevalence in a population of elderly Japanese-Brazilians using different MS definitions according to waist circumference cutoff values.Material/Methods: We studied 339 elderly subjects, 44.8% males, aged between 60 to 88 years (70.1 +/- 6.8). MS was defined according to criteria proposed by the Joint Interim Statement in 2009. As waist circumference cutoff point values remain controversial for Asian and Japanese populations, we employed 3 different cutoffs that are commonly used in Japanese epidemiological studies: 1) >90 cm for men and >80 cm for women; 2) >85 cm for men and >90 cm for women; 3) >85 cm for men and >80 cm for women.Results: MS prevalence ranged from 59.9% to 65.8% according to the different definitions. We observed 90% concordance and no statistical difference (p>0.05) in MS prevalence between the 3 definitions. MS diagnosis according to all 3 cutoff values was found in 55.8% of our population, while in only 34.2% was MS discarded by all cutoffs. The prevalence of altered MS components was as follows: arterial blood pressure 82%, fasting glycemia 65.8%, triglyceride 43.4%, and HDL-C levels 36.9%.Conclusions: Elderly Japanese-Brazilians present high metabolic syndrome prevalence independent of waist circumference cutoff values. Concordance between the 3 definitions is high, suggesting that all 3 cutoff values yield similar metabolic syndrome prevalence values in this population.
- ItemAcesso aberto (Open Access)Relação da obesidade com a pressão arterial elevada em crianças e adolescentes(Sociedade Brasileira de Cardiologia - SBC, 2010-06-01) Souza, Maria Goretti Barbosa de; Rivera, Ivan Romero; Silva, Maria Alayde Mendonça da; Carvalho, Antonio Carlos [UNIFESP]; Universidade Federal de Alagoas Faculdade de Medicina; Universidade Federal de São Paulo (UNIFESP)BACKGROUND: Excess weight and body fat are currently recognized as the major determinants of high blood pressure in children and adolescents. OBJECTIVE: To identify the relationship between obesity - identified by waist circumference (WC), triceps skinfold thickness (TSF) and body mass index (BMI) - high blood pressure (HBP) in children and adolescents. METHODS: A cross-sectional epidemiological study based on school population in children and adolescents of both sexes, aged between 7 and 17 years, randomly selected. Protocol: a structured questionnaire; measures of weight, height, triceps skinfold thickness, waist circumference, blood pressure, diagnosis of obesity through BMI, TSF thickness and waist circumference; diagnosis of HBP. Statistical analysis: Chi-square. RESULTS: A total of 1,253 students (547 males, mean age 12.4 ± 2.9 years), were assessed. A prevalence of obesity (BMI, TSF thickness, WC) of 13.7%, 14,8% and 9.3% respectively were identified. HBP was identified in 7.7% of young people. There was a significant association between obesity (BMI, TSF thickness, WC) with HBP (*p < 0.0001). There was a strong correlation (*p < 0.01) between WC and BMI, a moderate correlation between WC and TSF thickness, WC and SBP, BMI and SBP (*p < 0.01); weak correlation between DBP and WC, TSF thickness and BMI, and between SBP and TSF thickness (*p < 0.05). CONCLUSION: The significant correlation and association between HBP and excess body fat by any of the methods used establish the importance of its use in evaluating children and adolescents, aiming at preventing hypertension in this age group, suggesting, for this, the use of BMI associated to at least another anthropometric method.
- ItemSomente MetadadadosUsefulness of waist circumference as a marker of abdominal adiposity in peritoneal dialysis: a cross-sectional and prospective analysis(Oxford Univ Press, 2012-02-01) Bazanelli, Ana Paula [UNIFESP]; Kamimura, Maria Ayako [UNIFESP]; Manfredi, Silvia Regina [UNIFESP]; Draibe, Sergio Antonio [UNIFESP]; Cuppari, Lilian [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Waist circumference (WC) has been well recognized as a surrogate marker of abdominal adiposity. in peritoneal dialysis (PD) patients, however, aspects related to this dialysis modality, such as abdominal distension, presence of catheter and frequent hernia, raise questions regarding the reliability of WC measurements. Herein, we investigated for the first time whether WC is a reliable marker of abdominal adiposity in PD population.This study included 107 prevalent PD patients [56% male, age 52 +/- 17 years, 35% diabetics, body mass index (BMI) 24.8 +/- 3.9 kg/m(2)]. WC measured at umbilicus level was evaluated against the trunk fat assessed by dual-energy x-ray absorptiometry at baseline and after 6 months. All measurements were taken with the empty abdominal cavity.At baseline, a strong correlation of WC with trunk fat (r = 0.81; P < 0.001) was observed. Adjusting for gender, age, dialysis vintage and BMI, WC was independently associated with trunk fat (beta = 0.30; P < 0.001; R-2 = 0.77). the agreement between WC and trunk fat was 0.59 (kappa statistic) and the area under the curve was 0.90. in the prospective evaluation, we observed that changes in WC correlated with changes in trunk fat as well (r = 0.49; P < 0.001). the kappa statistic of 0.48 remained indicative of a moderate agreement between the methods. the receiver operating characteristic curve analysis showed that WC was sensitive to detect changes in trunk fat (area under the curve 0.76). in the logistic regression analysis adjusting for gender, age and BMI, changes in WC were independently associated with changes in trunk fat.The simple anthropometric method of WC is a reliable marker of abdominal adiposity in PD patients.
- ItemSomente MetadadadosWAIST CIRCUMFERENCE AS A PREDICTOR of ADIPONECTIN LEVELS in PERITONEAL DIALYSIS PATIENTS: A 12-MONTH FOLLOW-UP STUDY(Multimed Inc, 2013-03-01) Bazanelli, Ana Paula [UNIFESP]; Kamimura, Maria Ayako [UNIFESP]; Canziani, Maria Eugênia Fernandes [UNIFESP]; Manfredi, Silvia Regina [UNIFESP]; Cuppari, Lilian [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Objectives: This prospective study, conducted at the dialysis unit of the Nephrology Division, Federal University of São Paulo-Oswaldo Ramos Foundation, Brazil, aimed to evaluate whether waist circumference (WC) can predict adiponectin levels in patients undergoing peritoneal dialysis (PD).Methods: Among 115 patients on PD at a single dialysis center who were evaluated at 6 and 12 months, 57% were men, 31% had diabetes, mean age was 52.8 +/- 16.1 years, body mass index was 25 +/- 4.3 kg/m(2), and dialysis vintage was 13 months (range: 5 - 33 months). We measured WC at the umbilicus level. Adiponectin was determined by an enzyme-linked immunosorbent assay.Results: At baseline, WC was inversely associated with adiponectin (r = -0.48, p < 0.01). After adjustment for sex, age, diabetes, peritoneal clearance, and residual renal function, WC was an independent determinant of serum adiponectin (beta = -0.52; 95% confidence interval: -0.73 to -0.31; p < 0.001). in the prospective analysis, after adjustment for confounders, changes in WC predicted changes in adiponectin. for each unit increase in WC, adiponectin declined by 0.39 mg/L (p < 0.001).Conclusions: This study demonstrates that WC is associated with adiponectin and, more importantly, that this simple marker of central adiposity was able to predict changes in adiponectin levels over time. Perit Dial Int 2013; 33(2):182-188 www.PDIConnect.com epub ahead of print: 01 Sep 2012 doi:10.3747/pdi.2011.00129