To evaluate the effects of probiotic supplementation on gastrointestinal (GI) symptoms, circulatory markers GI permeability, damage, and immune response during a marathon race. Twenty-four recreational runners were randomly assigned to either supplement with (PRO) capsule [25 billion CFU Lactobacillus acidophilus (CUL60 CUL21), Bifidobacterium bifidum (CUL20), animalis subs p. Lactis (CUL34)] or placebo (PLC) for 28 days prior symptoms recorded period Serum lactulose:rhamnose ratio, plasma...

Purpose Supplementation with dietary forms of vitamin D is commonplace in clinical medicine, elite athletic cohorts, and the general population, yet response all major metabolites to high doses poorly characterized. We aimed identify responses moderate- high-dose supplemental D3. Methods A repeated-measures design was implemented which 46 professional European athletes were block randomized based on their basal 25[OH]D concentration into two treatment groups. Athletes received either 35,000...

Mosher, SL, Sparks, SA, Williams, EL, Bentley, DJ, and Mc Naughton, LR. Ingestion of a nitric oxide enhancing supplement improves resistance exercise performance. J Strength Cond Res 30 (12): 3520-3524, 2016-Studies have established that supplementation nitrate increases which in turn The current study aimed to investigate the effects ingestion on performance bench press until failure. Twelve recreationally active (age, 21 ± 2 years, height, 177.2 4.0 cm, weight, 82.49 9.78 kg)...

This work examined the influence of an acute dose sodium bicarbonate (NaHCO3) on buffering capacity and performance during a repeated sprint ability (RSA) protocol. Eleven (mean ± SD: age 24.6 6.1 years; mass 74.9 5.7 kg; height 177.2 6.7 cm) participated in study, undertaking 4 test sessions. On first visit to laboratory, each participant ingested 300 mg · kg(-1) NaHCO3 (in 450 ml flavored water) blood samples were obtained at regular intervals determine individual times peak pH HCO3. In...

Despite the performance concerns of dehydration in other sports, there are currently no data on effects rapid weight-loss physical and cognitive jockeys a sport-specific context. In randomised crossover design, eight Great Britain (GB) male licensed were assessed for chest strength, leg simulated riding (assessed by maximum pushing frequency mechanical simulator during final two furlongs 2 mile race) simple reaction time after performing 45 min exercise, which euhydration was maintained...

Abstract Background A new commercially available sodium bicarbonate (SB) supplement claims to limit gastrointestinal (GI) discomfort and increase extracellular buffering capacity. To date, no data exists substantiate such claims. Therefore, the aim of this study was measure blood acid–base balance GI responses following ingestion SB using novel “Bicarb System” (M-SB). Twelve well-trained male cyclists completed randomised crossover designed study. Maximal oxygen consumption determined in...

The aim of this study was to investigate the effects sodium bicarbonate (NaHCO3) on 4 km cycling time trial (TT) performance when individualised a predetermined peak blood (HCO3−). Eleven male trained cyclists volunteered for (height 1.82 ± 0.80 m, body mass (BM) 86.4 12.9 kg, age 32 9 years, power output (PPO) 382 22 W). Two trials were initially conducted identify HCO3− following both 0.2 g.kg−1 BM (SBC2) and 0.3 (SBC3) NaHCO3. Thereafter, three separate occasions using randomised,...

Wrist-based accelerometers are now common in assessing physical activity (PA) and sedentary behaviour (SB) population-based studies, but there is a scarcity of raw acceleration cutpoints older adults. The study aimed to determine evaluate wrist-based GENEActiv (GA) hip-based ActiGraph GT3X+ (AG) for SB moderate-to-vigorous PA (MVPA) adults ≥60 years age. A laboratory-based calibration analyses 34 healthy involved receiver operator characteristic (ROC) curves MVPA. ROC analysis revealed an...

Sodium bicarbonate (NaHCO3) is a well-established nutritional ergogenic aid, though gastrointestinal (GI) distress common side-effect. Delayed-release NaHCO3 may alleviate GI symptoms and enhance bioavailability following oral ingestion, although this has yet to be confirmed.In randomised crossover design, pharmacokinetic responses acid-base status were compared two forms of NaHCO3, as symptoms. Twelve trained healthy males (mean ± SD age 25.8 4.5 years, maximal oxygen uptake ([Formula: see...

Rugby is characterized by frequent high-intensity collisions, resulting in muscle soreness. Players consequently seek strategies to reduce soreness and accelerate recovery, with an emerging method being cannabidiol (CBD), despite anti-doping risks. The prevalence rationale for CBD use rugby has not been explored; therefore, we recruited professional male players complete a survey on CBD. Goodness of fit chi-square (χ2) was used assess between codes player position. Effects age were...

The aim of this study was to evaluate the effects a seven-week nutrition education intervention on sports knowledge (SNK) highly trained UK adolescent swimmers. Fifteen national and international swimmers (males = 5; females 10, 15.5 ± 1.1 years, 170.2 7.5 cm, 60.3 5.7 kg) participated in during seven consecutive weeks competitive swimming season. participants received 30 min once per week classroom-based setting after they had completed their regular swim training. An undergraduate student...

Acute moderate hypoxic exposure can substantially impair exercise performance, which occurs with a concurrent exacerbated rise in hydrogen cation (H+) production. The purpose of this study was therefore, to alleviate acidic stress through sodium bicarbonate (NaHCO3) supplementation and determine the corresponding effects on severe-intensity intermittent performance. Eleven recreationally active individuals participated randomised, double-blind, crossover performed under acute normobaric...

The nutritional intake of ultraendurance athletes is often poorly matched with the requirements sport. Nutrition knowledge a mediating factor to food choice that could correct such imbalances. Therefore, purpose this study was develop and validate questionnaire assess nutrition athletes. Nutritional assessed using modified sports (ULTRA-Q). Four independent assessors specialization in confirmed content validity ULTRA-Q. Registered nutritionists, registered dietitians, those without training...

Abstract Background Stroboscopic visual training (SVT) has been shown to improve cognitive skills and perceptual performance by carrying out events under situations of intermittent vision. Aims The aim this study was investigate whether an SVT period could the eye–hand coordination (EHC) on a practiced task for group sports participants. Methods Sixty-two male participants were randomly assigned either strobe (SG n = 31), or control (CG 31). method employed Sport Vision Trainer™ 80 sensor...

This study investigated the effect of induced alkalosis on curvature constant (W’) power-duration relationship under normoxic and hypoxic conditions. Eleven trained cyclists (mean ± SD) Age: 32 7.2 years; body mass (bm): 77.0 9.2 kg; VO2peak: 59.2 6.8 ml·kg−1·min−1 completed seven laboratory visits which involved determination individual time to peak following sodium bicarbonate (NaHCO3) ingestion, an environment specific ramp test (e.g. normoxia hypoxia) four x 3 min critical power (CP)...

The provision of performance-related feedback during exercise is acknowledged as an influential external cue used to inform pacing decisions. this in a challenging or deceptive context allows research explore how can be improve performance and influence perceptual responses. However, the effects deception on both acute residual responses have yet explored, despite potential application for enhancement. Therefore, study investigated self-paced cycling time trials (TT) explored whether changes...