The purpose of this study was to examine the influence intrasession sequencing concurrent strength and aerobic training on acute testosterone (TT) cortisol (COR) responses. Ten recreationally strength-trained young men (23.5 ± 0.9 years) performed 2 exercise interventions: aerobic-strength (AS) strength-aerobic (SA), which consisted 30 minutes a cycle ergometer at 75% maximal heart rate 3 sets 8 repetitions 1 repetition maximum (1RM) in 4 exercises. Maximal determined using incremental test...

This study aimed to describe and compare ballet dancers' cardiorespiratory responses, muscle damage oxidative stress levels during a class (practice of isolated exercises performed with barre/hand-rail support across-the-floor movements improve technical skills) rehearsal choreography involving technical-artistic skills performance for shows). The 12 advanced female dancers undertook three exercise sessions: maximum effort test, rehearsal. Heart rate (HR) oxygen consumption (VO2) were...

Cadore, EL, Pinheiro, E, Izquierdo, M, Correa, CS, Radaelli, R, Martins, JB, Lhullier, FLR, Laitano, O, Cardoso, and Pinto, RS. Neuromuscular, hormonal, metabolic responses to different plyometric training volumes in rugby players. J Strength Cond Res 27(11): 3001–3010, 2013—The purpose of this study was investigate the effect exercise (i.e., 100, 200, or 300 hurdle jumps) on acute strength jump performance hormonal lactate Eleven young male elite players (age, 23.5 ± 0.9 years; height, 173...

The objective of this study was to investigate the effect running versus cycling exercises upon serum S100B levels and typical markers skeletal muscle damage such as creatine kinase (CK), aspartate aminotransferase (AST) myoglobin (Mb). Although recent work demonstrates that is highly expressed exerts functional properties in muscle, there no previous tries establish a relationship between after exercise. We conducted cross-sectional on 13 male triathletes. They completed 2 submaximal...

The present study investigated the effect of an aerobic exercise bout associated with a high-carbohydrate (CHO) meal on plasma levels acylated ghrelin and hunger sensation. Eight healthy males performed (ET) control (CT) trial. In ET, participants 60-min cycling (∼70% maximal oxygen uptake) after consuming high-CHO meal. CT, remained at rest throughout whole period Hunger sensation was assessed blood samples were taken to determine ghrelin, glucose, insulin, total cholesterol (TC),...

This study compared rectal temperature (Tre), heat sensation and sweating between obese non-obese boys during cycling in the heat. Participants (aged 12-15 years) were 17 16 (BMI=29.4±4.3 16.8±1.7 kg · m⁻², respectively) boys. They cycled for 30-min (50-55% VO(2peak)) a climatic chamber (35°C, 45% RH) Tre, sweat volume monitored. From start to end of cycling, Tre was similar (37.4±0.3-37.8±0.3°C) (37.3±0.2-37.9±0.2°C) groups. Heat higher group from (3.6±2.7 vs. 1.3±1.4 cm; P=0.008) (7.6±2...

Cardiopulmonary exercise testing (CPET) is increasingly used to evaluate the overall impact of illness on patients with chronic obstructive pulmonary disease (COPD). While laboratory tests performance are costly, 6-min walk test (6-MWT) can be more easily performed. Although main outcome commonly in this field distance walked 6 min (6-MWD), measure does not account for differences body weight. Previous studies showed a good correlation between work performed during 6-MWT incremental cycling...

Sulfonylureas have been used to improve performance in strength sports. However, this hypothetical effect has not proven. We examined the ergogenic acute of gliclazide on resistance training and muscle recovery.

<title>Abstract</title> To examine the acute effect of gliclazide on exercise performance and recovery muscle strength in healthy participants. We conducted a randomized, double-blind, placebo-controlled crossover clinical trial 44 strength-trained men. They were allocated to modified release (MR) (90mg, 8h before sessions) or placebo, undergo three consecutive sessions (four sets, 80% one-repetition maximum [1-RM] bench press free squat exercise). evaluated total volume-load (VL)...

Aims: This study analyzed and compared the rating perceived exertion (RPE) of upper lower body weight resistance exercises (BWR) performed by men women. Methods: Forty-eight participants (24 24 women) attended two experimental sessions: an introduction to BWR RPE scale assessment session determine each exercise. Four dynamic (Lower-limb: Squat Lunge; Upper-limb: Knee Push-Up Push-Up) isometric (Core: Front Side Plank) were evaluated. Each exercise's was evaluated using a Borg CR10 scale....

This study assessed sweat electrolyte concentration and losses in asthmatic children during exercise the heat. Eleven asthmatics (AG; 11 ± 2 years old) nonasthmatics (CG; 10 1 year underwent a maximal progressive cycle-ergometer test. During second session, participants cycled heat (35°C, 60% RH) of climatic chamber for 30 min at 50–60% workload. Sweat was collected using patches attached to dorsal region. No differences were observed [Na + ] (AG = 35 12.9 CG 43.4 18 mmol/L) [Cl - 27.3 10.4...

FC), concentrações plasmáticas de triptofano [TRP], prolactina ([PRL]) e ácidos graxos livres ([AGL]). Catorze nadadores realizaram dois protocolos distintos: 1) repetições 200 400 m, em máxima intensidade (V200 V400) para a determinação da VC; 2) série VC (repetições m), com intervalos 40 s.Os principais resultados foram: ( [TRP] [AGL] não apresentaram diferenças entre repouso exaustão (p > 0,05); (2) aumento [PRL], [LA], FC do EP < 0,05) ao longo VC.Assim o [PRL] pode indicar manifestação...

Massive use of non-steroidal anti-inflammatory drugs (NSAIDs) by athletes has been widely reported in the literature. PURPOSE: To analyze effects prophylactic administration a single dose Ibuprofen (1,2g) on performance, glomerular filtration (GF), serum levels muscle damage markers, and dehydration experienced runners submitted to simulated 10 km race. Desing: Randomized, crossover double blind trial. METHODS: Thirteen (31±5 y, 64±7kg, 173±8cm, 4.5±1.2% body fat, maximal oxygen uptake...

INTRODUCTION: Peak oxygen uptake (VO2peak) corrected by body mass may be underestimated in obese children, and the use of allometry attenuate such problem. PURPOSE: To evaluate alometric way to correct VO2peak (OB) lean (LB) boys. METHODS: Thirty physically active pre-pubescent boys (age 9.2 ± 1.1 years) were classified as OB (n=15) LB according their indexes (CDC, 2000), % fat (Lohman, 1987) triceps skinfold (Must, 1991). was measured a cycle ergometer (ErgoFit 167) using McMaster protocol...

The cerebral S100B protein has been used as a peripheral marker of central nervous system injuries. However, recent studies have shown that also increases after physical exercise, yet these are not completely understood. Some authors proposed increase during exercise is related to active secretion by skeletal muscle. PURPOSE: Investigate serum levels in running versus bicycling establishing relationship among and myoglobin, traditional blood for muscle damage. METHODS: 13 male triathletes...

A prolonged canoeing training session may lead to fluid losses that can impair both thermoregulatory function and performance. PURPOSE: To examine sweat rate, % dehydration, electrolyte concentration during a session. METHODS: Eight elite female flatwater sprint kayak athletes (age 19 ± 4 years; height 161.3 4.2 cm; weight 57.9 5.2 Kg) from the Brazilian National Team participated in this study. Athletes were assessed morning consisted of 15,000 m (K-2) practice at 75% their maximum heart...