Minimal dose resistance training enhances strength without affecting cardiac autonomic modulation in menopausal women: a randomized clinical trial.

The proposition of a minimal dose of resistance training (RT) to elicit health benefits, encompassing physiological and psychological aspects, has garnered attention. While empirical investigations have demonstrated the efficacy of low-volume RT protocols in inducing adaptations such as enhanced strength and functional capacity, further exploration of the effects of this paradigm across a broader spectrum of variables is warranted. Thus, this study aimed to investigate the effects of minimal dose RT on strength and functional capacity, cardiac autonomic modulation, and hemodynamic parameters in menopausal women.

Does yoga improve sexual function? A systematic review and meta-analysis of randomized clinical trials.

Background: Yoga practice can increase blood flow in the genital area, increase muscular strength, and improve body perception, which is related to sexual function. This study aimed to summarize the available evidence about the effects of yoga on sexual function in adults.

Methods: Systematic searches of five databases were conducted from inception to April 28, with the last update on September 28, 2023.

Does the Fight Profile Interfere with Orthopedic Injuries in Brazilian Jiu-Jitsu?

Purpose: To evaluate the prevalence and characteristics of orthopedic injuries associated with the technical-tactical profiles of Brazilian Jiu-Jitsu (BJJ) fighters, according to the fighters' graduation level (beginner and advanced).

Patients And Methods: Cross-sectional study, which included the participation of amateur and professional BJJ athletes, aged between 18 and 60 years and practitioners of the sport for at least six months. All answered a mixed self-reported morbidity questionnaire.

Acute Photobiomodulation Does Not Influence Specific High-Intensity and Intermittent Performance in Female Futsal Players.

The acute improvement of performance after photobiomodulation therapy (PBMT) has been reported in different types of exercise. However, the effect on high-intensity and intermittent exercises that are relevant for team sports is unknown. Thus, we evaluated the effect of prior acute application of PBMT on high-intensity and intermittent exercise performance, muscle oxygenation, and physiological/perceptual indicators in amateur female futsal players.

Effects of the laying on of hands on anxiety, stress and autonomic response of employees in a hospital: A double-blind randomized controlled trial.

Unlabelled: Mental and behavioral disorders result in increased absenteeism and abandonment of work. The objective of this study was to evaluate the anxiety, stress, depression, negative and positive affects, and hematological and autonomic responses of employees in a public hospital exposed to laying on of hands with (LHS) or without Spiritual connection (control-LHW).

Methodology: Eighty-four employees with anxiety/stress were enrolled and randomly allocated into two groups of intervention LHS by Spiritist "passe" and control-LHW by volunteers with healing intent.

Exercise training ameliorates adrenergic control in spontaneously hypertensive rats.

The goal of this study was to examine vascular control after sympathetic stimulation by tyramine infusion in hypertensive rats submitted to swimming training. To this end, male rats were assigned to the following groups: sedentary (SN) and trained normotensive (TN), sedentary (SH) and trained hypertensive (TH). Arterial pressure (AP), heart rate (HR), HR variability (HRV), AP variability (APV), and cardiac autonomic function were recorded.

Combined effects of exercise training and high doses of anabolic steroids on cardiac autonomic modulation and ventricular repolarization properties in rats.

Several studies have reported that high doses of synthetic anabolic androgenic steroids (AAS) can have serious negative effects on health, including the cardiovascular system. The aim of this study was to evaluate the combined effects of AAS and exercise training on ventricular repolarization and cardiac autonomic modulation in rats. Male Wistar rats were allocated into 4 groups: sedentary rats treated with vehicle, sedentary rats treated with nandrolone decanoate, swimming-trained rats treated with vehicle, and swimming-trained rats treated with nandrolone decanoate.

Low levels of dehydroepiandrosterone sulfate are associated with the risk of developing cardiac autonomic dysfunction in elderly subjects.

Objective: To assess the relationships between serum dehydroepiandrosterone sulfate (DHEA-S) levels and heart rate variability (HRV) among different age groups.

Subjects And Methods: Forty-five healthy men were divided into 3 groups: young age (YA; 20-39 yrs; n = 15), middle age (MA; 40-59 yrs; n = 15) and old age (OA; ≥ 60 yrs; n = 15). Hemodynamic parameters, linear analyses of HRV and concentrations of cortisol and DHEA-S were measured at rest.

Compression Stockings Used During Two Soccer Matches Improve Perceived Muscle Soreness and High-Intensity Performance.

Gimenes, SV, Marocolo, M, Pavin, LN, Pagoto Spigolon, LM, Neto, OB, Côrrea da Silva, BV, Duffield, R, and Ribeiro da Mota, G. Compression stockings used during two soccer matches improve perceived muscle soreness and high-intensity performance. J Strength Cond Res 35(7): 2010-2017, 2021-Evidence on the use of compression stockings (CS) during soccer matches is limited.

Wearing Colored Glasses can Influence Exercise Performance and Testosterone concentration?

Perception of red color is associated with higher testosterone concentration and better human performance. Thus, we evaluated the acute effects of wearing colored-lens glasses on the YoYo intermittent endurance exercise test 2 (YoYoIE2) performance indicators and testosterone concentration. Ten soccer players performed three YoYoIE2 (counterbalanced crossover) wearing colorless (control), blue- or red-lensed glasses (2-4 days of rest in between).

Effects of Mind⁻Body Exercises (Tai Chi/Yoga) on Heart Rate Variability Parameters and Perceived Stress: A Systematic Review with Meta-Analysis of Randomized Controlled Trials.

Background: Heart rate variability (HRV) as an accurate, noninvasive measure of the Autonomous Nervous System (ANS) can reflect mental health (e.g., stress, depression, or anxiety).

Exercise Training Attenuates Sympathetic Activity and Improves Morphometry of Splenic Arterioles in Spontaneously Hipertensive Rats.

Background: Alterations in the structure of resistance vessels contribute to elevated systemic vascular resistance in hypertension and are linked to sympathetic hyperactivity and related lesions in target organs.

Objective: To assess the effects of exercise training on hemodynamic and autonomic parameters, as well as splenic arteriolar damages in male Wistar Kyoto (WKY) and Spontaneously Hypertensive Rats (SHR).

Methods: Normotensive sedentary (WKYS) and trained (WKYT) rats, and hypertensive sedentary (SHRS) and trained (SHRT) rats were included in this study.

Acute interruption of treatment with nandrolone decanoate is not sufficient to reverse cardiac autonomic dysfunction and ventricular repolarization disturbances in rats.

Anabolic androgenic steroids are a class of synthetic compounds derived from testosterone, eventually used by athletes, to improve physical performance. However, anabolic steroids can also modify normal cardiovascular function. Thus, we investigated cardiac electrophysiological and autonomic abnormalities in rats, through a electrocardiographic variability protocol during and after interruption of administration of nandrolone decanoate (DECA) anabolic steroid.

Acute ischemic preconditioning does not influence high-intensity intermittent exercise performance.

This study evaluated the acute effect of ischemic preconditioning (IPC) on a high-intensity intermittent exercise performance and physiological indicators in amateur soccer players. Thirteen players (21.5 ± 2 yrs) attended three trials separated by 3-5 days in a counterbalanced randomized cross-over design: IPC (4 × 5-min occlusion 220 mmHg/reperfusion 0 mmHg) in each thigh; SHAM (similar to the IPC protocol but "occlusion" at 20 mmHg) and control (seated during the same time of IPC).

Long-term anabolic steroids in male bodybuilders induce cardiovascular structural and autonomic abnormalities.

Objective: The aims of this study were to examine the hypothesis that users of anabolic androgenic steroids (AAS) would have cardiac autonomic disorders and that there is a correlation between sympathetic modulation, high blood pressure (BP) and alterations to cardiac dimensions.

Methods: Forty-five male subjects were enrolled in the study. They were categorized into three groups comprising bodybuilders actively using AAS (AAS users; n = 15), bodybuilders who had never used AAS (nonusers; n = 15) and age-paired healthy sedentary controls (n = 15).

Exercise training improves hypertension-induced autonomic dysfunction without influencing properties of peripheral cardiac vagus nerve.

We examined the vagal transfer function of autonomic heart rate (HR) control in anesthetized sedentary and exercise-trained Spontaneously Hypertensive Rats (SHR). To this end, male SHR and Wystar-Kyoto (WKY) rats with 48-50weeks of age-old were divided into 4 groups: sedentary (SHR, n=12) and trained (SHR, n=14) hypertensive rats, sedentary (WKY, n=13) and trained (WKY, n=13) normotensive rats. The trained groups were submitted to swimming protocol for 9weeks.

[Obesity and cardiometabolic risk factors during pregnancy].

Purpose: To assess cardiometabolic risk factors during normal pregnancy and the influence of maternal obesity on them.

Methods: This study included 25 healthy pregnant women with a single pregnancy and a gestational age of less than twenty weeks. Longitudinal analysis of blood pressure, body weight, body mass index (BMI), serum concentrations of leptin, adiponectin, cortisol, total cholesterol and fractions, triglycerides, uric acid, fasting glucose, oral glucose tolerance test, HOMA-IR and insulin/glucose ratio was performed each trimester during pregnancy.

Exercise training improves cardiovascular autonomic activity and attenuates renal damage in spontaneously hypertensive rats.

Experiments were performed to determine the influence of exercise training by swimming on cardiovascular autonomic control and renal morphology in spontaneously hypertensive rats (SHR) and Wystar-Kyoto (WKY) rats. Sedentary normotensive (SN), trained normotensive (TN), sedentary hypertensive (SH), and trained hypertensive (TH) rats were included in this study. Arterial pressure (AP), heart rate (HR), means of power spectral analysis of HR (HRV) and systolic AP variability (SAPV) were recorded in baseline conditions.

Remodeling of elastic layer of aortic artery after training by swimming in spontaneously hypertensive rats.

Hypertension is a major risk factor for cardiovascular diseases, in which the elastic properties of arteries are subjected to high pressure levels, and networks of elastic fibers may develop cleft longitudinal, transverse, breaks and fragmentation, and such structural changes (fibrosis and degradation of elastin) may lead to a decrease in the elasticity of the artery. The descending thoracic aortas of normotensive Wistar Kyoto (WKY) and spontaneously hypertensive rats (SHRs) subjected to physical training through swimming or those of sedentary rats were prepared with hematoxylin-eosin and Verhoff to assess the artery medial. The images were captured with a videocamera coupled to an ordinary light microscope and the images were analyzed with the same program.

Exercise-training reduced blood pressure and improve placental vascularization in pregnant spontaneously hypertensive rats--pilot study.

Assess the effects of exercise-training on resting arterial pressure and heart rate, placental fetuses morphologic alterations in pregnant spontaneously hypertensive rats (SHRs).Twenty SHRs and their respective control normotensive rats (WKY) were submitted or not to a swimming protocol during 9 weeks, resulting in four pregnant experimental groups: sedentary hypertensive (PSH), trained hypertensive (PTH), sedentary normotensive (PSN), and trained normotensive (PTN). Exercise-training by swimming attenuates arterial pressure in pregnant SHRs, and can contribute to an increase in the length of fetuses and the percentage of the vessels in the placenta.

Low appendicular muscle mass is correlated with femoral neck bone mineral density loss in postmenopausal women.

Background: After menopause, rapid bone mass loss occurs in response to hypoestrogenism. Several studies suggest that muscle mass and bone mineral density (BMD) are positively associated in postmenopausal women. Therefore, it may be assumed that postmenopausal low appendicular muscle mass (aMM) can increase BMD loss in a short period of time.

COX-2 inhibition does not reverse the increased sympathetic modulation in MSG obese rats.

We evaluate the effects of chronic treatment with celecoxib, a cyclooxygenase-2 (COX-2) inhibitor, on blood pressure (BP) and heart rate variability (HRV) in obese rats induced by neonatal monosodium glutamate (MSG). The animals were treated with celecoxib or saline for 30 days (from the 60th to the 90th day of age). On the 90th day, the MSG obesity induced an increase in the low-frequency (LF) component (CTR=5.

Nitric oxide synthesis blockade increases hypertrophy and cardiac fibrosis in rats submitted to aerobic training.

Objective: The objective of the present study was to evaluate cardiac tissue adaptations in rats submitted to aerobic training after nitric oxide (NO) synthesis blockade.

Methods: The animals (n=48) were divided into four groups: sedentary (CONTROL group); hypertensive after administration of NG-nitro-L-arginine methyl ester for 7 days (L-NAME Group); trained for 8 weeks through swimming exercises (TRAINED Group);trained and treated with L-NAME during the last week (L-NAME TRAINED Group). All the animals were submitted to the experiment procedures for blood pressure (BP) readings and cardiac morphometric evaluation.