Background Aerobic training (AT) improves glycemic control in patients with type 2 diabetes. However, the role of the progression of training variables remains unclear. The objective of this review was to analyze the effects of progressive AT (PAT) and non-progressive AT (NPAT) on glycated hemoglobin (HbA1c) in patients with type 2 diabetes. Methods Data sources used were PubMed, Cochrane Central, Embase, SPORTDiscus, and LILACS. Studies that evaluated the effect of at least 12 weeks of PAT and NPAT compared to a control condition on HbA1c levels in type 2 diabetes patients were eligible for analysis. Two independent reviewers screened the search results, extracted the data, and assessed the risk of bias. Effect sizes (ESs) were calculated using the standardized mean difference in HbA1c levels between the intervention and control groups using a random-effect model. Results Of 5848 articles retrieved, 24 randomized clinical trials (825 participants) were included. Among the included studies, 92% reported to have performed a randomization process, 8% presented allocation concealment, 21% reported blinding of outcome assessment, and 38% reported complete outcome data. AT reduced HbA1c levels by 0.65% (ES: − 1.037; 95% confidence interval [CI]: − 1.386, − 0.688; p < 0.001). The reduction in HbA1c induced by PAT was 0.84% (ES: − 1.478; 95% CI − 2.197, − 0.759; p < 0.001), and NPAT was 0.45% (ES: − 0.920; 95% CI − 1.329, − 0.512; p < 0.001). Subgroup analysis of the different forms of progression showed a reduction in HbA1c levels of 0.94% (ES: − 1.967; 95% CI − 3.783, − 0.151; p = 0.034) with progression in volume, 0.41% (ES: − 1.277; 95% CI − 2.499, − 0.056; p = 0.040) with progression in intensity, and 1.27% (ES: − 1.422; 95% CI − 2.544, − 0.300; p = 0.013) with progression in both volume and intensity. Subgroup analysis of the different modalities of AT showed a reduction of 0.69% (ES: − 1.078; 95% CI − 1.817, − 0.340; p = 0.004) with walking and/or running and of 1.12% (ES: − 2.614; 95% CI − 4.206, − 1.022; p = 0.001) with mixed protocols while progressive training was adopted. In non-progressive protocols, a significant HbA1c reduction was only found with walking and/or running (− 0.43%; ES: − 1.292; 95% CI − 1.856, − 0.72; p < 0.001). Conclusion The effect of PAT on glycemic control was greater than that of NPAT, especially when volume and intensity were progressively incremented throughout the interventions. Electronic supplementary material The online version of this article (10.1186/s40798-019-0194-z) contains supplementary material, which is available to authorized users.

Background: There are a lack of clinical trials with suitable methodological quality that compare aquatic exercise training types in type 2 diabetes (T2D) treatment. This study aimed to compare the effects of aerobic and combined aquatic training on cardiorespiratory outcomes in patients with T2D. Methods: Untrained patients with T2D were randomized to receive an aerobic aquatic training, a combined aquatic training, or a procedure control in 3 weekly sessions for 15 weeks. The sessions were 50 minutes long. The intensities were from 85% to 100% of heart rate of anaerobic threshold and at maximal velocity for aerobic and resistance parts, respectively. Resting heart rate, peak oxygen uptake (VO2peak), and oxygen uptake corresponding to second ventilatory threshold and its relation with VO2peak were evaluated. Results: Participants were 59.0 (8.2) years old and 51% women. Intervention groups increased in VO2peak (aerobic aquatic training group: 4.48 mL·kg−1·min−1, P = .004; combined aquatic training group: 5.27 mL·kg−1·min−1; P = .006) and oxygen uptake corresponding to second ventilatory threshold, whereas the control group presented an increase in oxygen uptake corresponding to second ventilatory threshold and minimal change in VO2peak. Conclusions: Aerobic and combined aquatic exercise interventions improve the cardiorespiratory fitness of patients with T2D.

The model profession uses the appearance for the representation of products and brands via events. For some individuals that are included in this medium, plus a laboral activity, modeling becomes a lifestyle, the search for the status and work opportunities turn a dream for a thousands of children and teenagers because the profession has particulars experiences. To win this, many girls change physical and eating behaviors which are harmful to health. The objective of this study was to analyze the health-related physical fitness in female models comparing them with nonmodels. The study was conducted at the Caxias do Sul, Rio Grande do Sul, Brazil. Participated of the study female runway and commercial models bokered in Cast One Models, with age between 15-25 years old. The non-models were students from public and private schools or university students. The health-related physical fitness, the physical activity levels and dietary intake were assessed of all participants. The data were described as mean and standard deviation. For comparison between models and non-models was used t independent test for variables normally distributed and U Mann-Whitney test for not normally distributed variables, adopting a level of significance (α) of 0.05. It was found difference in total energy between model group and non-model (GM: 1509.78 kcal, NM: 2292.51 Kcal; p = 0.014). There were no differences between groups in the others variables analyzed (p > 0.05). In conclusion, the profession model seems not interfere in variables that make up the health-related physical fitness.

The aim of the present study was to analyze acute glycemic effects in different moments of an aerobic training, as well as to analyze the chronic effect of training, in patients with type 2 diabetes mellitus (T2D). The participants performed 16 weeks of interval aerobic training with three weekly sessions. The main part of each session consisted of nine blocks of five minutes, in which four minutes consisted of stimulus between 85% and 95% of the anaerobic threshold heart rate (ATHR) and one minute consisted of recovery below 85% of the ATHR, totalizing 45 minutes. Capillary glucose was assessed before, immediately after and 30 minutes after the first and the last training sessions. Glycated hemoglobin (HbA1c) was assessed before and after the intervention. Paired t-test and Generalized Estimating Equations were performed for the analyses; α = 5%. The participants were seven individuals (four women) aged 59.60±6.69 years. In the first session, glucose values immediately after and 30 minutes after exercise were lower than pre-exercise values. On the other hand, in the last training session, only the glucose values immediately after exercise were lower than pre-exercise values. Analyzing the glycemic reductions, the first session presented a greater reduction immediately after (p = 0.042) and 30 minutes after exercise (p = 0.010). Regarding chronic glycemic effects, an increase (p = 0.010) in HbA1c levels was observed after training. It is concluded that, after 16 weeks of training without progression of duration and intensity, the exercise loses its acute glycemic effect, and may be even insufficient to reduce HbA1c levels.

The purpose of the present study was to analyze quality of life (QoL) levels and depressive symptoms in female models in comparison to non-models. The study was conducted in Estação Saúde Gym, in Caxias do Sul, Rio Grande do Sul, Brazil. The sample of the study was composed of ten runaway and/or commercial female models between the ages of 15 and 25 from Cast One Models agency and eight control adolescent and young adult students from public/private schools and universities, all from Caxias do Sul, Rio Grande do Sul, Brazil. Quality of life and depressive symptoms of all participants were evaluated. Data were described by mean and standard deviation values. The main results were analyzed by independent t-test for comparison between models and non-models, adopting a significance level (α) of 0.05. No differences were found between the groups in the analyzed variables (p > 0.05). The results of our study, suggest that professional runaway and commercial female models have similar QoL and depressive symptoms when compared to their control counterparts.

Introduction: Childhood obesity is increasing and, as a consequence, it generates health complications resulting from sedentary behavior and low levels of physical fitness. There are few studies involving children, metabolic and cardiorespiratory profiles, and soccer. Objective: The purpose was to measure the effects of a 12-week recreational small-sided soccer program on cardiometabolic risk and individual responses to cardiometabolic risk factors in overweight or obese boys. Methods: Thirteen boys aged 8-12 years (34.9±11.6% body fat) participated in a 12-week recreational small-sided soccer training program with two 80-minute sessions per week at intensities over 80% of the maximal heart rate. Anthropometric characteristics, cardiorespiratory fitness, metabolic profile, individual responses to peak oxygen uptake (VO2peak), maximal workload (Wmax), fasting blood glucose, insulin, HOMA-IR, LDL-C, HDL-C, TC, and TG were measured both pre- and post-training. Results: Considering the individual responses of the participants, recreational soccer training was effective in improving variations in maximum power and exhaustion time, as well as promoting at least one beneficial change in cardiometabolic risk factors in 84% of the overweight or obese children. There were no differences between pre- and post-program anthropometric characteristics, metabolic profiles, or VO2peak values. Conclusion: Twelve-week recreational small-sided soccer programs were able to improve maximal power and anaerobic capacity and maintain cardiometabolic risk factor levels in overweight and obese boys. Level of evidence I; High-quality prospective study (all patients were enrolled at the same stage of disease, with >80% of patients enrolled) .

Background: To compare the effects of aquatic aerobic and combined (aerobic more resistance) training on glycemic control and other cardiometabolic outcomes in patients with type 2 diabetes. Methods: Patients were randomized to an aquatic aerobic training (AERO, n = 19; 57.5 [7.4] y; 9 [47%] women), or an aquatic combined training (COMBI, n = 19; 60.9 [7.4] y; 10 [53%] women), or an aquatic active procedure control (n = 19; 58.6 [9.7] y; 10 [53%] women) in 3 weekly sessions (50 min each), during 15 weeks. Glycated hemoglobin was the primary outcome, whereas insulin resistance markers, lipid profile, systemic inflammation, renin concentration, blood pressure, physical activity levels, and sitting time were secondary outcomes. Results: Glycated hemoglobin was reduced in all groups (P = .021), although changes were more marked in AERO (−0.36%) and COMBI (−0.44%) than in active control (−0.26%) group. Lipid profile was similarly modified in all groups. Diastolic blood pressure and renin concentration were also reduced in all groups; however, renin showed more marked reductions in AERO (−17.7 uIU/mL) and COMBI (−15.1 uIU/mL) than in active control (0.2 uIU/mL) group. Fasting insulin, triglycerides, C-reactive protein, systolic blood pressure, walking time, and sitting time on weekends were not modified. Conclusion: AERO and COMBI presented similar effect to improve glycemic control and some cardiometabolic risk factors in patients with type 2 diabetes.

Background: In the literature, professions that impose body standards for daily performance are designated as non-conventional professions (i.e. models, athletes, ballet dancers), with great emphasis on the female population. More than a job, it becomes a lifestyle to those inserted in this environment, thus, thousands of children and adolescents seek the inclusion and success in these professions due to financial and media gains. Such professions are associated to several health-related risk factors. The purpose of this study was to identify whether there is a relationship between physical fitness levels, cardiometabolic health markers, mental health and dietary habits in non-conventional professions. Methods: The sample consisted of 41 female individuals aged between 14 and 24 years, divided in four groups, control group/ university students (UG=11), models (MG=11), ballet dancers (BG=11), and athletes group (AG=8). Physical fitness outcomes (cardiorespiratory fitness, flexibility, maximal dynamic strength, muscular endurance and body composition); biochemical outcomes (high density lipoprotein [HDL], low density lipoprotein [LDL], total cholesterol [TC], fasting glucose [FG], fasting insulin [FI], C-reactive protein [CRP]), diet quality and mental health were evaluated. Results: No impairments were observed in the health markers evaluated, both for health-related physical fitness and biochemical outcomes. Even with statistically significant differences between the groups for chronological age (p=0.002), menarche (p=0.004), career length (p=0.001), height (p=0.001), body mass index (p=0.018), waist-to-height ratio (p<0.001), %Fat (p=0.020), VO2peak (p=0.020), maximal dynamic strength of knee extensors (p=0.031) and elbow flexors (p=0,001) and flexibility (p<0.001), all these values are within the normal range for health. Conclusion: The professions analyzed do not seem to interfere in the physical and metabolic health of the girls assessed. However, regarding mental health, the evaluated age group was susceptible to depressive symptoms.