Curcumin has been shown to reduce exercise-induced oxidative stress (OS) and inflammation. The purpose of this investigation was examine the effects curcumin supplementation on OS, inflammation, muscle damage, soreness. Nineteen males participated in a randomized, double-blinded, placebo-controlled trial (1.5 g/day) compared placebo (PLA) following muscle-damaging protocol (MDP) Participants were randomized two groups, or group. MDP performed before after (28 days). Blood sampled pre-...

Endurance performance and fuel selection while ingesting glucose (15, 30, 60 g/h) was studied in 12 cyclists during a 2-h constant-load ride [approximately 77% peak O2 uptake] followed by 20-km time trial. Total fat carbohydrate (CHO) oxidation of exogenous glucose, plasma released from the liver, muscle glycogen were computed using indirect respiratory calorimetry tracer techniques. Relative to placebo (210+/-36 W), ingestion increased trial mean power output (%improvement, 90% confidence...

There is a lack of consensus regarding the optimal range carbohydrate (CHO) ingestion rates recommended for endurance athletes.This study investigated relationship between CHO dose and cycling time trial performance to identify an performance.Fifty-one cyclists triathletes (28 ± 7 yr, mean SD) across four research sites completed trials. Each consisted 2-h constant load ride at 95% workload that elicited 4-mmol·L(-1) blood lactate concentration immediately followed by computer-simulated...

This study examined the effects of a d-β-hydroxybutyrate (βHB) containing beverage on cognitive and performance measures during bout repeated Wingates. Fifteen healthy, college-aged males (mean ± SD; age: 23.1 2.4 years, height: 165.4 2.0 cm, mass: 81.4 9.2 kg) volunteered for present study. Trial 1 consisted baseline familiarization protocol. During trials 2 3, subjects reported to laboratory, after 10-h fast, ingested 11.38 g βHB or placebo (PLA) 30 min before exercise. Participants then...

The purpose of this study was to evaluate critical power (W(CP)) as an indicator aerobic fitness in trained cyclists, and determine its relationship cycling time trial (TT) performance. Thirteen competitive USCF category 2 or 3 cyclists provided season's best 40 km TT times (mean [SD]) = 59.6 min (3.1), performed two 17 under controlled conditions (26.6 [1.1]). Ventilatory threshold (VT) VO2max were determined from a maximal incremental test. W(CP) calculated using the results four all-out...

Carbohydrate intake during endurance exercise delays the onset of fatigue and improves performance. Two recent cycling studies have reported increased time to exhaustion when protein is ingested together with carbohydrate. The purpose present study was test hypothesis that ingestion a carbohydrate + beverage will lead significant improvements in time-trial performance relative placebo alone. Thirteen cyclists completed 120 min constant-load ergometer cycling. Thereafter, participants...

Women are typically more prone to knee injuries than men, possibly due poorer hamstrings-to-quadriceps ratio (HTQ), particularly during fast velocity movements. Men would have greater HTQ across women. Cross-sectional study. 2. Ultrasound images quantified quadriceps and hamstrings muscle cross-sectional area (CSA) in 27 study participants (14 women, age, 24 ± 4 years; 13 25 6 years). Peak torque (PT) was taken from maximal voluntary isometric contractions (MVICs) isokinetic leg extension...

The purpose of this investigation was to examine the influence carbohydrate ingestion (CHOI) and mouth rinse (CHOR) on acute repeat maximal sprint performance. Fourteen healthy males (age: 21.7 ± 1.8 years, mass: 82.3 12.3 kg) completed a total five 15-s sprints cycle ergometer against 0.075 kg ・ kg-1 body mass each separated by 4 min active recovery. Subjects four experimental trials were randomly assigned one treatments: (1) CHOI, (2) CHOR, (3) placebo (PLAR), (4) (PLAI). rinsed or...

Abstract Cummings, PM, Waldman, HS, Krings, BM, Smith, JW, and McAllister, MJ. Effects of fat grip training on muscular strength driving performance in division I male golfers. J Strength Cond Res 32(1): 205–210, 2018—Fat (FG) is implemented into conditioning programs with the overall goal increasing strength. Previous research assessing effect increased diameters compared standard Olympic bar has mainly been acute settings. Therefore, purpose this study was to examine effects FG normal...

Combined mental and physical stress is associated with exacerbated cortisol production which may increase risk for the progression of cardiovascular disease in individuals working high-stress occupations (e.g., firefighters, military personnel, etc.). Carbohydrate (CHO) ingestion prior to attenuate concentrations. This project was first investigate effect CHO on response from combined stress. 16 men 21-30 years old were randomly assigned a 6.6% beverage or non-CHO control 15 min performing...

The efficacy of carbohydrate (CHO) ingestion during high-intensity strength and conditioning type exercise has yield mixed results. However, little is known about shorter duration such as CrossFit. purpose this study was to investigate the performance impact CHO sessions lasting approximately 30 min. Eight healthy males participated in a total four trials; two familiarizations, trial, similarly flavored, non-caloric placebo (PLA) trial. CrossFit's "Fight Gone Bad Five" (FGBF) workout day...

Background Carbohydrate (CHO) supplementation during endurance exercises has been shown to increase performance, but there is limited research with CHO strength and conditioning exercises. Therefore, the purpose of this study was examine effects various levels ingestion acute testing sessions requiring participants complete a program designed for collegiate athletes.Methods Participants (n = 7) performed series while ingesting an amino-acid electrolyte control (CON) or CON plus varying CHO....

Traditional resistance training schemes often utilize higher loads for strength gains and lower muscular endurance or hypertrophy. This study aimed to investigate adaptations after nine weeks of high- low-load training.

Stroboscopic vision training has shown to improve visual-motor control and dynamic visual acuity in sport performance; however, no studies have considered using this enhance kinesthetic awareness during walking, applicable high fall-risk populations.

Objective: Firefighters (FFs) involved in fire suppression have the greatest on-duty risk of cardiovascular disease (CVD), which may be caused by oxidative stress (OS). Methods: Healthy, active FFs performed a victim "search and clear" exercise involving three conditions: (1) no heat, (2) heat + antioxidant, (3) placebo. Blood samples were analyzed for OS markers glutathione (GSH), oxidized (GSSG), superoxide dismutase (SOD), catalase (CAT), advanced oxidation protein products (AOPP)....

Research results have repeatedly demonstrated an ergogenic effect of consuming carbohydrate (CHO) before and during endurance exercise, however a relationship between the amount ingested performance enhancement has yet to be established. PURPOSE: The purpose this study was investigate ingestion rate cycling time trial identify range rates that would enhance performance. METHODS: 51 cyclists triathletes (VO2PEAK: 59.1 ± 5.6 ml · kg-1 min-1), across four research sites, completed exercise...

Waldman, HS, Krings, BM, Basham, SA, Smith, JW, Fountain, BJ, and McAllister, MJ. Effects of a 15-day low carbohydrate, high-fat diet in resistance-trained men. J Strength Cond Res 32(11): 3103-3111, 2018-This study examined the effects isocaloric carbohydrate (<25% E), (>50% E) (LCHF) on physiological metabolic alterations (RT) College-aged RT men (n = 11) completed 4 V[Combining Dot Above]O2max tests using treadmill every 5 days during trial. Blood was drawn intravenously pre-exercise...

Limited research exists on the physiological demands of occupational footwear. Therefore, purpose this investigation was to examine impact tactical boots (TB) (0.5 kg) and steel-toed work (WB) (0.9 oxygen consumption (V̇O2) cardiorespiratory responses during simulated walking protocols. Seventeen healthy male (age: 21.9 ± 2.0 years; height: 177.6 4.8 cm; mass: 80.0 9.4 participants completed a total four 20-min experimental trials: (1) WB horizontal protocol, (2) graded (3) TB (4) following...

Firefighters and military personnel are exposed to a variety of stressors. The combination mental physical stress (i.e., dual challenges [DSCs]) results in significant oxidative (OS), which may contribute cardiometabolic dysfunction. Curcumin (CUR) is an exogenous antioxidant that attenuate such OS. Fourteen trained men participated randomized, cross-over design investigate the impact CUR on markers OS resulting from DSC. or placebo was ingested three days prior to, morning of, testing. DSC...

Abstract Waldman, HS, Smith, JW, Lamberth, J, Fountain, BJ, and McAllister, MJ. A 28-day carbohydrate-restricted diet improves markers of cardiometabolic health performance in professional firefighters. J Strength Cond Res 33(12): 3284–3294, 2019—We investigated the effects a 4-week ad-libitum, nonketogenic, (&lt;25% calories) (CRD) on firefighters (FF). Subjects ( n = 15) completed 9 sessions (trials 1–3 [familiarization], trials 4–6 [baseline], 7–9 [post-CRD]). Following habitual western...