Faster and Healthier: Relationship between Telomere and Performance in Master Athletes.

Aging is associated with increased oxidative stress, chronic inflammation, and decreased telomere length (TL). However, the lifestyle of master athletes can lead to a reduced risk of these conditions, and thus attenuates aging and performance deterioration. We aimed to analyze the relationships between TL and relative performance (RP), and their relation to adiposity, oxidative stress, and inflammation in endurance (END) and sprint/power (SPW) master athletes (MAs).

Effects of a physical activity and nutritional intervention in overweight and obese children through an educational and recreational camp.

Background:: Educational camps have hosted millions of children around the world. However, few studies have described their benefits on weight control and health promotion for overweight and obese children.

Aim:: To investigate the impact of a health educational program for children composed of 5 days of camp and a 12-week follow up on the physical activity level, sedentary behaviour, anthropometric data and food intake in overweight and obese children.

Role of exercise intensity on GLUT4 content, aerobic fitness and fasting plasma glucose in type 2 diabetic mice.

Type 2 diabetes mellitus (T2D) results in several metabolic and cardiovascular dysfunctions, clinically characterized by hyperglycaemia due to lower glucose uptake and oxidation. Physical exercise is an effective intervention for glycaemic control. However, the effects of exercising at different intensities have not yet been addressed.

Effects of prior exercise on glycemic responses following carbohydrate inges on in individuals with type 2 diabetes.

Background: Exercise is effective in reducing glycemia, especially when it is performed in the postprandial period. However, no consensus exists in the literature about the effect of exercise on postprandial glucose control when it is performed before carbohydrate consumption.

Aims: The main aim was to determine whether 20 min of exercise performed prior to carbohydrate consumption reduces postprandial glycemic and insulinemic responses.

Effects of a recreational physical activity and healthy habits orientation program, using an illustrated diary, on the cardiovascular risk profile of overweight and obese schoolchildren: a pilot study in a public school in Brasilia, Federal District, Brazil.

Introduction: Educative strategies need to be adopted to encourage the consumption of healthy foods and to promote physical activity in childhood and adolescence. The effects of recreational physical activity and a health-habit orientation program using an illustrated diary on the cardiovascular risk profile of overweight and obese children was investigated.

Methods: The weight and height of 314 schoolchildren aged between 9 and 11 years old, in a public school in Brasilia, Federal District, Brazil, were recorded.

Type 2 diabetes elicits lower nitric oxide, bradykinin concentration and kallikrein activity together with higher DesArg(9)-BK and reduced post-exercise hypotension compared to non-diabetic condition.

This study compared the plasma kallikrein activity (PKA), bradykinin concentration (BK), DesArg(9)-BK production, nitric oxide release (NO) and blood pressure (BP) response after moderate-intensity aerobic exercise performed by individuals with and without type 2 diabetes. Ten subjects with type 2 diabetes (T2D) and 10 without type 2 diabetes (ND) underwent three sessions: 1) maximal incremental test on cycle ergometer to determine lactate threshold (LT); 2) 20-min of constant-load exercise on cycle ergometer, at 90% LT and; 3) control session. BP and oxygen uptake were measured at rest and at 15, 30 and 45 min post-exercise.

Resistance exercise leading to failure versus not to failure: effects on cardiovascular control.

Background: The aim of the present study was to evaluate the acute effects of resistance exercise (RE) leading to failure and RE that was not to failure on 24 h blood pressure (BP) and heart rate variability (HRV) in sedentary normotensive adult women.

Methods: Ten women (33.2 ± 5.

Resistance training decreases 24-hour blood pressure in women with metabolic syndrome.

Background: The purpose of this study was to verify the effects of eight weeks of resistance training (RT) on 24 hour blood pressure (BP) in patients with and without metabolic syndrome (MetS).

Methods: Seventeen women volunteered to participate in this study, 9 with MetS (37.0 ± 8.

Association of cardiovascular response to an acute resistance training session with the ACE gene polymorphism in sedentary women: a randomized trial.

Background: The aim of the present study was to verify the effects of an acute resistance training (RT) session and insertion/deletion (I/D) polymorphism of the angiotensin-converting enzyme (ACE) on systolic (SBP), diastolic (DBP) and mean blood pressure (MBP), and heart rate (HR).

Methods: The sample consisted of 27 sedentary women (33.3 ± 8.

Aerobic fitness evaluation during walking tests identifies the maximal lactate steady state.

Objective: The aim of this study was to verify the possibility of lactate minimum (LM) determination during a walking test and the validity of such LM protocol on predicting the maximal lactate steady-state (MLSS) intensity.

Design: Eleven healthy subjects (24.2 ± 4.

Similarity in physiological and perceived exertion responses to exercise at continuous and intermittent critical power.

The purpose of this study was to compare the physiological responses [oxygen uptake (VO(2)), heart rate (HR) and blood lactate concentrations ([BLa])] and the rating of perceived exertion (RPE) response until exhaustion (TTE) at the continuous (CP(c)) and intermittent (CP(i)) critical power workloads. Ten moderately active men (25.5 ± 4.

Lactate threshold prediction by blood glucose and rating of perceived exertion in people with type 2 diabetes.

The validity of rating of perceived exertion (RPE) in predicting lactate threshold during an incremental test was analyzed in 15 men with type 2 diabetes (M age = 53.4 yr., SD = 12.

Determination of the lactate threshold and maximal blood lactate steady state intensity in aged rats.

The reliability of the lactate threshold (LT) determined in aged rats and its validity to identify an exercise intensity corresponding to the maximal blood lactate steady state (MLSS) were analyzed. Eighteen male aged Wistar rats (approximately 365 days) were submitted to two incremental swimming tests until exhaustion, consisting of an initial load corresponding to 1% of body mass (BM) and increments of 1% BM at each 3-min with blood lactate ([lac]) measurements. The LT was determined by visual inspection (LT(V)) as well by applying a polynomial function on the [lac]/workload ratio (LT(P)) by considering the vertices of the curve.

Indirect assessment of lactate minimum and maximal blood lactate steady-state intensity for physically active individuals.

An indirect assessment of the running velocity corresponding to lactate minimum (LMind) and its validity to estimate the maximal blood lactate steady state (MLSS) were analyzed in 22 physically active men (24.6 +/- 4.1 years, 72.

Maximal lactate steady-state prediction through quadratic modeling of selected stages of the lactate minimum test.

In this study, we compared the maximal lactate steady state (MLSS) with lactate minimal (LM) intensities determined visually and through a quadratic polynomial function of selected stages of LM test. Eleven male recreational cyclists (27.7 +/- 4.