Association between social support and frequency of physical activity in adult workers.

Introduction: The benefits of taking up physical activity are well established and social support has been identified as one of the main determinants of this behavior.

Objectives: To investigate the association between social support and weekly frequency of physical activity in adults working at a public university in the state of Rio de Janeiro, Brazil.

Methods: This is a cross-sectional population study with a convenience sample of 189 contract workers of both sexes, aged from 21 to 72 years (39.

Is There a Dose-Response Relationship between High-Intensity Interval Exercise (HIIE) Intensity and Affective Valence? Analysis of Three HIIE Sessions Performed with Different Amplitudes.

The inverse relationship between exercise intensity and affective valence is well established for continuous exercise but not for high-intensity interval exercise (HIIE). The objective was to verify the dose-response relationship between exercise intensity and affective valence in HIIE sessions. Eleven young men underwent a vigorous-intensity continuous exercise (VICE) and three HIIE sessions at the same average intensity (70% of peak power-W) and duration (20 min) but with different amplitudes: 10 × [1 min at 90% W/1 min at 50% W]-HIIE-90/50; 10 × [1 min at 100% W/1 min at 40% W]-HIIE-100/40; 10 × [1 min at 110% W/1 min at 30% W]-HIIE-110/30.

Association of Self-Reported Depression Symptoms with Physical Activity Levels in Czechia.

Worldwide, depressive disorder is one of the leading determinants of disability-adjusted life years. Although there are benefits associated with a higher physical activity (PA) level, there is a lack of information related to this relationship, especially in countries such as Czechia, where modern approaches to mental health care only recently emerged. The present study aimed to evaluate the association between the level of depression and different PA levels following the World Health Organization (WHO) PA guidelines and according to specific symptoms that indicate depression.

Effects of cathodal transcranial direct current stimulation on hip range of motion of healthy sedentary women: A crossover study.

The improvements in range of motion (ROM) by cathodal transcranial direct current stimulation (c-tDCS) were only found in sedentary men and not in females. Thus, the study investigated the effect of c-tDCS on hip flexion range of motion (HFROM) in sedentary women. Ten healthy (27.

Anodal Transcranial Direct Current Stimulation Does Not Affect Velocity Loss During a Typical Resistance Exercise Session.

This study investigated the effects of transcranial direct current stimulation (tDCS) on velocity loss in a typical resistance exercise session. Twelve recreationally resistance-trained males (age = 24.8 ± 3.

Association between Estimated Cardiorespiratory Fitness and Depression among Middle-income Country Adults: Evidence from National Health Survey.

Objective: This study assessed the relationship between cardiorespiratory fitness (CRF) and depression in adults.

Methods: A total of 52,611 individuals aged between 18-59 years old were evaluated for symptoms of depression and CRF. The presence of depressive symptoms was self-report through the Patient Health Questionnaire (PHQ-9), and the CRF was predicted from a non-exercise equation.

Transcranial Direct Current Stimulation Combined With or Without Caffeine: Effects on Training Volume and Pain Perception.

This study aimed to investigate the acute effects of tDCS combined with caffeine intake on training volume and pain perception in the bench press in resistance-trained males. The correlation between training volume and pain perception was also assessed in all interventions. Sixteen healthy males (age = 25.

Acute affective responses to high-intensity interval exercise: Implications on the use of different stimulus-recovery amplitudes.

The effect of high-intensity interval exercise (HIIE) on affective responses is unclear due to the several variables of HIIE, which may be minimized by using derived variables (e.g. amplitude).

Correlation between economy/efficiency and mountain biking cross-country race performance.

This study investigated the correlation between cycling economy (CE) and gross efficiency (GE) in Olympic cross-country mountain biking (XCO-MTB) race performance. Also was examined the correlation between CE, GE, and peak oxygen uptake (VO). Sixteen male XCO-MTB athletes (30.

Transcranial Direct Current Stimulation (tDCS) Improves Back-Squat Performance in Intermediate Resistance-Training Men.

: The purpose of this study was to evaluate the effects of anodal tDCS applied over the dorsolateral prefrontal cortex (DLPFC) on muscle endurance in the back-squat exercise. : Eleven healthy males, intermediate in resistance training (RT), aged between 18 and 31 years (25.5 ± 4.

Anodal Transcranial Direct Current Stimulation Increases Muscular Strength and Reduces Pain Perception in Women With Patellofemoral Pain.

Rodrigues, GM, Paixão, A, Arruda, T, de Oliveira, BRR, Maranhão Neto, GA, Marques Neto, SR, Lattari, E, and Machado, S. Anodal transcranial direct current stimulation increases muscular strength and reduces pain perception in women with patellofemoral pain. J Strength Cond Res 36(2): 371-378, 2022-The purpose of this study is to investigate the effects of anodic transcranial direct current stimulation applied to motor cortex combined with open kinetic chain exercises on muscular strength and pain perception in women with patellofemoral pain (PFP).

Can transcranial direct current stimulation improve range of motion and modulate pain perception in healthy individuals?

The objective of the present study was to investigate the effects of different electrode assemblies and electric current polarity on the ROM of the hip and pain perception. Ten healthy male, sedentary, right-leg-dominant, and aged between 19 and 30 years (24.0 ± 4.

Affective and enjoyment responses in high intensity interval training and continuous training: A systematic review and meta-analysis.

Previous studies investigating the effects of high intensity interval training (HIIT) and moderate intensity continuous training (MICT) showed controversial results. The aim of the present study was to systematically review the literature on the effects of HIIT and MICT on affective and enjoyment responses. The PRISMA Statement and the Cochrane recommendation were used to perform this systematic review and the database search was performed using PubMed, Scopus, ISI Web of Knowledge, PsycINFO, and SPORTDiscus.

Effects of transcranial direct current stimulation on time limit and ratings of perceived exertion in physically active women.

The limiting factors of maximum performance in humans have been extensively investigated. The aim of this study was to verify the acute effects of transcranial direct current stimulation on time limit (i.e.

Heart Rate Variability Indexes in Dementia: A Systematic Review with a Quantitative Analysis.

Background: Decreased heart rate variability (HRV) indexes indicate low vagal activity and may be associated with development of dementia. The neurodegenerative process is associated with the cardiovascular autonomic control.

Objective: The aim of this systematic review was to investigate the effect size (ES) magnitude of the HRV indexes in the evaluation of autonomic dysfunction in older persons with dementia.

Acute Affective Responses and Frontal Electroencephalographic Asymmetry to Prescribed and Self-selected Exercise.

Objective: Our goal was to compare affective responses and frontal electroencephalographic alpha asymmetry induced by prescribed exercise (PE) and self-selected exercise (SS).

Method: Twenty active participants underwent a submaximal exercise test to estimate maximal oxygen consumption (VO). Participants enrolled a cross-over randomized study where each participant completed three conditions: PE (50%PVO), SS and Control.

Prediction of Affective Responses in Aerobic Exercise Sessions.

The objective of the present study was to verify which physiological (percentage of maximum oxygen consumption--%VO2 or percentage of maximum heart rate--%HR) or psychological (ratings of perceived exertion--RPE) variable is the best predictor of affective responses during continuous (CT) and interval (HIT) exercise sessions. Fourteen men underwent 3 exercise sessions on the treadmill. In the first session, a graded exercise test was performed to determine the maximum HR, peak VO2, and the respiratory compensation point (RCP).

Self-selected or imposed exercise? A different approach for affective comparisons.

The aim of this study was to compare the psychological and physiological responses of self-selected and imposed sessions of equivalent intensities and durations and allowing to participants a free control of pace during the self-selected session. Seventeen participants completed three sessions on a cycle ergometer. Participant's VO2Peak and lactate threshold were measured during an incremental exercise test.