In karate, particularly in the kata discipline, there is a notable lack of studies focused on specific physical preparation for competitions. This highlights an urgent need more in-depth research into this crucial aspect athletic training to optimize performance and athlete preparation. The objective study was analyze influence dietary plan combined with body composition professional preparing Pan American championship. A 20-year-old elite female karateka (60.7 kg, 165.4 cm) followed...

Abstract Recent acute studies have shown that high‐intensity resistance circuit‐based ( HRC ) training in hypoxia increases metabolic stress. However, no intervention yet proven their effectiveness. This study aimed to analyze the effect of 8 weeks on aerobic performance, resting energy expenditure REE ), repeat sprint ability RSA and hematological variables. Twenty‐eight subjects were assigned (FiO 2 = 15%; hyp : n 15; age: 24.6 ± 6.8 years; height: 177.4 5.9 cm; weight: 74.9 11.5 kg)...

Human and animal studies have shown that Hesperidin has the ability to modulate antioxidant inflammatory state improve aerobic performance. The main objective of this study was assess whether acute intake 500 mg 2S-Hesperidin (Cardiose®) improves status, metabolism, athletic performance, during after a rectangular test (aerobic anaerobic effort). For this, crossover design used in 15 cyclists (>1 year training), with one week washout between placebo Cardiose® supplementation. After...

During some trail running races, athletes have to carry hydration support, food, and technical safety equipment, which generates an additional load that must be mobilized during the race. The aim of present study was determine physiological responses overload effect they may on metabolic zones. Seventeen well-trained male runners (n = 17) completed three maximal treadmill tests with weighted vests at 0%, 5%, 10% their body mass (L0, L5, L10). Their gas exchange monitored assess ventilatory...

Currently, no studies have examined the differences in endogenous antioxidant enzymes professional and amateur cyclists how these can influence sports performance. The aim of this study was to identify antioxidants hemogram between competitive levels cycling see if found parameters could explain A comparative trial carried out with 11 (PRO) 15 (AMA) cyclists. All performed an analysis fasted state (visit 1) incremental test until exhaustion 2). Higher values catalase (CAT), oxidized...

Both acute and chronic ingestion of 2S-hesperidin have shown antioxidant anti-inflammatory effects in animal studies, but so far, no one has studied this effect humans. The main objective was to evaluate whether an 8-week intake had the ability modulate antioxidant-oxidant inflammatory status amateur cyclists. A parallel, randomized, double-blind, placebo-controlled trial study carried out with two groups (500 mg/d 2S-hesperidin; n = 20 500 placebo; 20). An incremental test performed...

In the last decade there has been a growing interest in infrared thermography field of sports medicine order to elucidate mechanisms thermoregulation. The aim this study was describe bilateral variations skin temperature anterior thigh and patellar tendon healthy athletes, provide model baseline muscle thermoregulation sprinters following unilateral isokinetic fatigue protocol. Fifteen national-level underwent force testing electrostimulation which body measured before, during, after...

High‐intensity exercises are known to provoke delayed onset muscle soreness (DOMS). Delayed typically occurs within the first 24 h, peaks between and 72 can last as long 5–7 days post‐exercise. is a multifactorial process involving both mechanical biochemical components, associated with clinical features that may limit range of motion, athletes seek for effective recovery strategies optimize future training sessions. TensLess ® food supplement developed help manage post‐exercise recovery....

2S-Hesperidin is a flavanone (flavonoid) found in high concentrations citrus fruits. It has an antioxidant and anti-inflammatory effects, improving performance animals. This study investigated the effects of chronic intake orange extract (2S-hesperidin) or placebo on non-oxidative/glycolytic oxidative metabolism markers amateur cyclists. A double-blind, randomized, placebo-controlled trial was carried out between late September December 2018. Forty cyclists were randomized into two groups:...

2<italic>S</italic>-Hesperidin is the main flavonoid of orange (<italic>Citrus sinensis</italic>). Previous researches have pointed its effects in muscle development and fat accumulation reduction, although most these results not been assessed humans.

Chronic supplementation with 2S-hesperidin improves performance; however, the mechanisms underlying this effect have not yet been explored. Therefore, aim of study was to assess whether changes in acid-base status may be associated improved performance after compared microcellulose (placebo). Forty amateur cyclists (n = 20 per group) underwent a rectangular test where capillary blood samples were taken at baseline, FatMax1, VT1, VT2, PMAX, FatMax2 and EPOC measure parameters. After eight...

Due to the increase in global temperature, it is necessary investigate solutions so that athletes competing hot conditions can perform optimal avoiding loss of performance and health problems. Therefore, this study aims evaluate effect pre-exercise glycerol supplementation during a rectangular test at ambient temperature mid (28.2ºC) on dehydration variables international race walkers.

Trail runners (TRs) must carry an extra load of equipment, food (bars and gels) liquids, to delay the anticipation fatigue dehydration during their competitions. Therefore, we aimed evaluate how can influence metabolic level. Thirteen well-trained trail performed a randomized crossover study (total n = 39), completing three treadmill running sessions with weighted vest 0%, 5% 10% body mass combined test (rectangular + ramp test). In addition, biomarkers oxygen metabolism, acid–base...

Due to the possible impact of thermoregulatory process on sports performance, it is necessary explore existing relationships between kinetic, mechanical, and physiological variables. The objective this study was evaluate metabolic stress using thermography in lower limb after Spanish Championship 2023 walk.

Sinetrol® Xpur is a polyphenolic ingredient rich in citrus flavonoids that has shown weight loss effects previous studies. The dose dependent nature, gut microbial actions of this product not been explored previously, thus presented study. In open label study, we evaluated the effect supplementation on healthy but overweight/obese adults (20-50 yrs) for 16 weeks. Participants (n = 20) were randomly allocated to high group (HD, 1800 mg/day) or low (LD, 900 Fat composition, using MRI and 16S...

Although chronic supplementation with 2S-hesperidin has been shown to improve performance, date, the possible mechanisms underlying this effect have not explored. Therefore, aim of study was assess whether changes in gasometry may be associated improved performance after intake (500 mg d-1, 8 weeks). Forty amateur cyclists (n = 20 2S-hesperidin, n placebo) performed a rectangular test, during which capillary blood samples were taken at baseline, FatMax1, ventilatory threshold 1 and 2 (VT1...

The need to carry different items, which become an extra load, is a characteristic of trail running. aim this study determine physiological-metabolic changes produced by running with load. Four male well-trained runners completed three treadmill maximal metabolic tests carrying loads (0% (L0), 5% (L5), and 10% (L10) their body mass) in weighted vest. Gasses exchange was monitored assess ventilatory thresholds 1 (VT1), 2 (VT2), zone fat oxidation, peak oxygen consumption (VO2peak). Heart rate...

In the last decade there has been a growing interest in infrared thermography field of sports medicine order to elucidate mechanisms thermoregulation. The aim this study was describe bilateral variations skin temperature anterior thigh and patellar tendon healthy athletes provide model baseline muscle thermoregulation sprinters following unilateral isokinetic fatigue protocol. Fifteen national-level (eleven men four women), with at least 3 years athletic training experience 10–12 h/week...

During the off-season, cyclists reduce their volume and intensity of training in order to recover body from high workload during competitive season. Some studies have examined effects off-season on cardiovascular, metabolic, performance levels but not evaluated oxygen metabolism, acid-base status, electrolytes cyclists. Therefore, our main objective was analyze these markers period (8 weeks) via finger capillary blood gasometry well-trained We found an increase saturation (sO2) oxyhemoglobin...

To compare the effects of 2 different intensity distribution training programs (threshold [THR] and polarized [POL]) on fat metabolism neuromuscular variables.Twenty ultrarunners were allocated to POL (n = 11; age 40.6 [9.7] y, weight 73.5 [10.8] kg, VO2max 55.8 [4.9] mL·kg-1·min-1) or THR group 9; 36.8 [9.2] 75.5 [10.4] 57.1 [5.2] performed a 12-week program that consisted 5 running sessions, strength 1 day full rest per week. Both groups similar total duration load but with during...

Cycling is a very popular sport worldwide, and several studies have already indicated that cycling at various levels has negative impact on bone health. This of concern to both performance health managers many teams different because its economic social impact. Based the scientific literature, we hypothesize single season professional level can negatively affect status. The aim this study was assess how affects markers after one season. Densitometry used measure mineral density (BMD),...