Marcos de Sá Rego Fortes

Efeito da dieta e do ciclismo indoor sobre a composição corporal e nível sérico lipídico

BACKGROUND Indoor cycling is an aerobic exercise that employs large muscle groups of the lower limbs, lacking osteoarticular impact and high energy expenditure, which makes it interesting to generate a non-pharmacological strategy. OBJECTIVE To assess body composition and lipid profile in overweight women after twelve weeks of low-calorie diet and indoor cycling training. METHODS We randomly assigned 40 women (23.90 ± 3.10 years), divided into four groups: control (C), indoor cycling (CI), indoor cycling combined with low-calorie diet (CD) and low-calorie diet (D). The variables were: height and body mass, BMI, fat percentage, lean body mass, triglycerides, cholesterol and lipoproteins (HDL, LDL, VLDL). The indoor cycling training consisted of three weekly sessions of 45 minutes each and an energy restriction of about 1,200 kcal. The study lasted 12 weeks. We used descriptive statistics (mean and standard deviation) and inferential statistics (Students t test). The level of significance was p < 0.05. RESULTS The groups CI, CD and D significantly reduced the mean anthropometric variables after 12 weeks of intervention (body mass, fat percentage and body mass index), and serum levels of total cholesterol and triglycerides. HDL cholesterol increased significantly for groups CI and CD. CONCLUSION According to the results, the indoor cycling and the low-calorie diet helped fight overweight and control serum lipids.

Effects of two kinds of aerobic training on body fat content and serum lipid profile in cadets

Effects of two kinds of aerobic training on body fat content and serum lipid profile in cadets Study aim: To assess the effects of aerobic training on body fat content and serum lipid profile. Material and methods: A group of 45 male members of Brazilian Military Police Academy, aged 18 - 32 years, were subjected randomly assigned into 3 subgroups and to 12-week programmes: aerobic fatmax zone training (FG; n = 18), traditional military training (TM; n = 15) and non-training control group (C; n = 12). Body fat content (3 skinfolds), serum lipid profile (total cholesterol, LDL, HDL and triglycerides), waist circumference (WC) and O2max (12-min test) were determined. Results: O2max significantly (p<0.05) increased and body fat content decreased in both experimental group compared with the control one. Significant (p<0.05) reductions in WC and LDL vs. control group were observed in the TM group only. Conclusions: The applied aerobic training induced a decrease in percent body fat irrespectively of the kind of training.

Effects of indoor cycling associated with diet on body composition and serum lipids.

Effects of indoor cycling associated with diet on body composition and serum lipids Study aim: To determine the effects of indoor cycling training combined with restricted diet, lasting 12 weeks, on serum lipid concentrations in obese women. Material and methods: Twenty women aged 23.8 ± 3.6 years were randomly assigned into two groups: control (C) and experimental (E), the latter subjected to indoor cycling at various loads, 3 sessions weekly, every session lasting 45 min, combined with restricted diet (about 1200 kcal daily) for 12 weeks. The following variables were recorded: body height and mass, BMI, relative body fat content (from 7 skinfolds), fat-free mass, triglycerides, cholesterol and lipoproteins (HDL, LDL, VLDL). Results: Significant increase in HDL and significant decreases in all other variables (except body height) were noted only in the experimental group. Conclusions: Indoor cycling associated with restricted diet is an excellent option in controlling obesity and serum lipids.

Efeitos agudos do treinamento concorrente sobre os níveis séricos de leptina e cortisol em adultos jovens sobrepesados

OBJETIVO: Este estudo teve como objetivo analisar os efeitos imediatos do treinamento concorrente sobre a leptina e os niveis de cortisol em adultos jovens com sobrepeso. METODOS: Este estudo utilizou uma metodologia quase-experimental. Foram 20 individuos voluntarios de ambos os sexos, divididos em um grupo sobrepesado treinamento (GST n = 10) e um grupo sobrepesado controle (n = 10). A coleta de sangue foi realizada com os individuos em repouso apos jejum de 12 horas. Os niveis de leptina e cortisol foram analisados por radioimunoensaio e ensaio por quimioluminescencia chimiluminescence antes e imediatamente apos o treinamento. ANOVA two way foi utilizada para analise estatistica com nivel de significância de p < 0,05. RESULTADOS: Na analise da leptina serica, observou-se diferenca significativa intergrupos (GST x GSC) nos momentos pre-intervencao (p = 0,02) e pos-intervencao (p = 0,01). Na analise intragrupos, nao foram observadas alteracoes significativas. E na analise do cortisol serico intergrupos (GST x GSC), foi observada uma diferenca significativa nos momentos pre-intervencao (p = 0,01) e pos-intervencao (p = 0,01), porem, na analise intragrupos, nao houve alteracoes significativas. CONCLUSAO: Uma unica sessao de treinamento concorrente nao e suficiente para promover alteracoes agudas nos niveis de leptina e cortisol dos jovens adultos sobrepesados voluntarios deste estudo.

Efeito da dieta hipoenergética sobre a composição corporal e nível sérico lipídico de mulheres adultas com sobrepeso

A amostra foi composta por vinte mulheres (23,80, desvio-padrao de 2,73 anos) da academia Westfit-Bangu,divididas randomicamente em dois grupos de dez: grupo controle e grupo dieta hipoenergetica. Foi realizadauma avaliacao da composicao corporal (massa corporal, percentual de gordura, indice de massa corporal emassa magra) e do nivel serico lipidico (colesterol total, triglicerideos, lipoproteina de baixa densidade,lipoproteina de alta densidade e lipoproteinas de muito baixa densidade). Utilizou-se a estatistica descritiva(media e desvio-padrao) e o teste

Concurrent Training Decreases Cortisol but Not Zinc Concentrations: Effects of Distinct Exercise Protocols

Objectives. To investigate the effects of distinct concurrent training (CT) protocols on zinc and cortisol concentrations and test the correlation between these blood variables. Methods. Samples of serum zinc and cortisol were assessed from 10 male subjects (27.1 ± 4.8 years old; BMI 25.38 ± 0.09) before and immediately after each study session: control (CS = no exercises), concurrent training 1 (CT1 = indoor cycling + strength training), and concurrent training 2 (CT2 = strength training + indoor cycle) with five days of interval between each. Results. There were no significant changes in zinc concentrations after the CS (Δ% = 8.45; p = 0.07), CT1 (Δ% = 4.77; p = 0.49), and CT2 (Δ% = −2.90; p = 0.12) sessions. Cortisol levels showed significant decrease after CS (Δ% = −6.02; p = 0.00), CT1 (Δ% = −26.32; p = 0.02), and CT2 (Δ% = −33.57; p = 0.05) sessions. There was a significant correlation between the variables only at CS (zinc post versus cortisol pre: r = 0.82 and cortisol post: r = 0.82). Conclusions. CT decreases cortisol concentrations regardless of the sequence performed. No changes were found in zinc concentrations after the study sessions. The reduction in serum cortisol concentrations appear to occur by a mechanism independent of the zinc status.

Efeitos de um programa de caminhada sob os níveis de autonomia funcional de idosas monitoradas pelo Programa Saúde da Família

OBJECTIVE: To evaluate the effects of a walking program on levels of functional autonomy of elderly participants of the Family Health Program. METHODS: In this experimental study, the sample was randomly divided into: experimental group (EG, n = 58, age: 67 ± 6 years) and a control group (n = 40, age: 70 ± 6 years). All were physically active but without a rigorous program of regular physical activity. Functional autonomy was evaluated by the battery of tests of the Group of Latin American Development to Maturity (GDLAM), comprising: walk 10m (C10M), rising from a seated position (LPS), rising from the prone position (LPDV), rising from his chair and moving around the house (LCLC) and test and get a dress shirt (VTC). These tests result in GDLAM index (GI). The intervention program was conducted in weekly frequency of three times, with intensity ranging from 55% to 75% of maximum heart rate. RESULTS: In the intragroup analysis, one could observe a significant improvement in the SG in all tests GDLAM and IG (Δ =- 4.13, p = 0.0001), although the GC obtained a significant worsening in all GDLAM tests and IG (Δ = +0.05, p = 0.0001). In intergroup comparison, the GE was superior to GC in all tests (p <0.05) and IG (Δ =- 8.23, p = 0.0001). CONCLUSIONS: It can be inferred that the GE, after undergoing regular walking activity and controlled, had improved the level of functional autonomy, compared to the initial and the GC. Number of clinical register: NCT00981734