Association of 24-h movement behaviors during Covid-19 pandemic with spinal musculoskeletal disorders in undergraduate students: a cross-sectional study.

Background And Aims: Musculoskeletal disorders (MSD) are an important health problem, and the Covid-19 pandemic affected several lifestyle and health aspects worldwide, including moderate-to-vigorous physical activity (MVPA), sedentary behavior (SB) and sleep time, which compose the 24-h movement guidelines (24-hMG). It is unclear whether meeting 24-hMG during pandemic have been associated with MSD in adult population and this study aimed to analyze the association of meeting 24-hMG with spinal MSD in undergraduate students during Covid-19 pandemic.

Methods: A sample of 71 undergraduate students were assessed (24.

Motivation Levels and Goals for the Practice of Physical Exercise in Five Different Modalities: A Correspondence Analysis.

The identification of the practitioner's profile regarding their motivation level for physical exercise engagement could be a behavioral strategy to increase exercise adherence. The present study investigates the associations between motivation levels, modalities practiced, and goals concerning the practice of physical exercise among physical exercise practitioners. A total of 100 physical exercise practitioners, of which 67 were women, took part in this study.

Exercise Duration Affects Session Ratings of Perceived Exertion as a Function of Exercise Intensity.

Session ratings of perceived exertion (sRPE) are considered a practical marker of whole session exercise intensity, but its relationship to exercise volume has remained unclear. We analyzed the effects of exercise duration at different intensities on overall and differentiated sRPE. Sixteen males ( = 22.

Effects of intensity-matched exercise at different intensities on inflammatory responses in able-bodied and spinal cord injured individuals.

To compare the effects of intensity-matched acute exercise at different intensities on proinflammatory and anti-inflammatory cytokines between able-bodied (AB) and spinal cord injured (SCI) individuals. Non-Randomized Controlled Trial. Community settings in São Paulo - Brazil.

Can IGF-1 Serum Levels Really be Changed by Acute Physical Exercise? A Systematic Review and Meta-Analysis.

Background: Physical exercise plays an important role in metabolic health, especially in the insulin-like growth factor-1 (IGF-1) system. The objective of this study was to perform a systematic review and meta-analysis to evaluate the effects of a single endurance and resistance exercise session on IGF-1 serum.

Methods: The systematic review was performed in SPORTDiscus, MEDLINE, PubMed, and Google Scholar databases.

L-Arginine supplementation improves insulin sensitivity and beta cell function in the offspring of diabetic rats through AKT and PDX-1 activation.

Maternal hyperglycemia can result in defects in glucose metabolism and pancreatic β-cell function in offspring. The purpose of this study was to evaluate the impact of maternal diabetes mellitus on pancreatic islets, muscle and adipose tissue of the offspring, with or without oral l-Arginine supplementation. The induction of diabetes was performed using streptozotocin (60mg/kg).

Analysis of the body composition of Paralympic athletes: Comparison of two methods.

Body composition is a physiological variable associated with physical activity and, in some cases, is related to athletic performance. Our objectives were to describe the body composition of participants in three distinct Paralympic sports and to compare the values of body density and estimated body fat obtained from the Paralympic athletes on the National Team by air-displacement plethysmography (ADP) and by the anthropometric method (skinfolds (SFs)). The sample consisted of 70 volunteers of both genders.

Incremental exercise test for the evaluation of peak oxygen consumption in paralympic swimmers.

Background: Peak oxygen consumption (VO2peak) is a fundamental parameter used to evaluate physical capacity. The objective of this study was to explore two types of incremental exercise tests used to determine VO2peak in four Paralympic swimmers: arm ergometer testing in the laboratory and testing in the swimming pool.

Methods: On two different days, the VO2peak values of the four athletes were measured in a swimming pool and by a cycle ergometer.

Motivational and evolutionary aspects of a physical exercise training program: a longitudinal study.

Several studies have indicated that motivational level and prior expectations influence one's commitment to physical activity. Moreover, these aspects are not properly described in terms of proximal (SDT, Self Determination Theory) and distal (evolutionary) explanations in the literature. This paper aims to verify if level of motivation (BREQ-2, Behavioral Regulation in Exercise Questionnaire-2) and expectations regarding regular physical exercise (IMPRAF-54) before starting a 1-year exercise program could determine likelihood of completion.

Low-grade inflammation and spinal cord injury: exercise as therapy?

An increase in the prevalence of obesity in people with spinal cord injury can contribute to low-grade chronic inflammation and increase the risk of infection in this population. A decrease in sympathetic activity contributes to immunosuppression due to the lower activation of immune cells in the blood. The effects of physical exercise on inflammatory parameters in individuals with spinal cord injury have not been well described.

Does physical exercise reduce excessive daytime sleepiness by improving inflammatory profiles in obstructive sleep apnea patients?

Introduction: Obstructive sleep apnea syndrome (OSAS) is associated with a variety of long-term consequences such as high rates of morbidity and mortality, due to excessive diurnal somnolence as well as cardiovascular and metabolic diseases. Obesity, recurrent episodes of upper airway obstruction, progressive hypoxemia, and sleep fragmentation during sleep cause neural, cardiovascular, and metabolic changes. These changes include activation of peripheral sympathetic nervous system and the hypothalamic-pituitary-adrenal axis, insulin sensitivity, and inflammatory cytokines alterations, which predispose an individual to vascular damage.

[Polar S810 as an alternative resource to the use of the electrocardiogram in the 4-second exercise test].

Background: The 4-second exercise test (T4s) evaluates the cardiac vagal tone during the initial heart rate (HR) transient at sudden dynamic exercise, through the identification of the cardiac vagal index (CVI) obtained from the electrocardiogram (ECG).

Objective: To evaluate the use of the Polar S810 heart rate monitor (HRM) as an alternative resource to the use of the electrocardiogram in the 4-second exercise test.

Methods: In this study, 49 male individuals (25 +/- 20 years, 176 +/-12 cm, 74 +/- 6 kg) underwent the 4-second exercise test.