keyword
MENU ▼
Read by QxMD icon Read
search

Wingate

keyword
https://www.readbyqxmd.com/read/28209802/doublet-stimulation-increases-ca-2-binding-to-troponin-c-to-ensure-rapid-force-development-in-skeletal-muscle
#1
Anthony J Bakker, Tanya R Cully, Catherine D Wingate, Christopher J Barclay, Bradley S Launikonis
Fast-twitch skeletal muscle fibers are often exposed to motor neuron double discharges (≥200 Hz), which markedly increase both the rate of contraction and the magnitude of the resulting force responses. However, the mechanism responsible for these effects is poorly understood, likely because of technical limitations in previous studies. In this study, we measured cytosolic Ca(2+) during doublet activation using the low-affinity indicator Mag-Fluo-4 at high temporal resolution and modeled the effects of doublet stimulation on sarcoplasmic reticulum (SR) Ca(2+) release, binding of Ca(2+) to cytosolic buffers, and force enhancement in fast-twitch fibers...
February 16, 2017: Journal of General Physiology
https://www.readbyqxmd.com/read/28199915/rumination-s-effect-on-suicide-ideation-through-grit-and-gratitude-a-path-analysis-study
#2
Evan J White, Morganne A Kraines, Raymond P Tucker, LaRicka R Wingate, Tony T Wells, DeMond M Grant
The current study documents the relationship between suicide ideation, grit and gratitude, and rumination subtypes of brooding and reflection. The relationship between rumination and suicide ideation has been well documented and previous research has demonstrated that grit and gratitude are protective factors against suicide. We hypothesized that both subtypes of rumination would have an indirect effect on suicide ideation through levels of grit and gratitude. Results of a conditional indirect effects path analysis indicated that brooding was indirectly related to suicide ideation through gratitude...
January 31, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28197819/disparities-in-infant-mortality-by-race-among-hispanic-and-non-hispanic-infants
#3
Whitney S Rice, Samantha S Goldfarb, Anne E Brisendine, Stevie Burrows, Martha S Wingate
OBJECTIVES: U.S.-born Hispanic infants have a well-documented health advantage relative to other minority groups. However, little published research has examined racial heterogeneity within the Hispanic population, in relation to health outcomes. The current study aims to explore possible implications of racial identification for the health of U.S. born Hispanic compared to non-Hispanic infants. Methods Data were drawn from 2007 to 2008 NCHS Cohort Linked Live Birth-Infant Death Files, restricted to deliveries of Hispanic black, Hispanic white, non-Hispanic black (NHB) and non-Hispanic white mothers (NHW) (n = 7,901,858)...
February 14, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28190980/effect-of-low-dose-short-term-creatine-supplementation-on-muscle-power-output-in-elite-youth-soccer-players
#4
Aquiles Yáñez-Silva, Cosme F Buzzachera, Ivan Da C Piçarro, Renata S B Januario, Luis H B Ferreira, Steven R McAnulty, Alan C Utter, Tacito P Souza-Junior
BACKGROUND: To determine the effects of a low dose, short-term Creatine monohydrate (Cr) supplementation (0.03 g.kg.d(-1) during 14 d) on muscle power output in elite youth soccer players. METHODS: Using a two-group matched, double blind, placebo-controlled design, nineteen male soccer players (mean age = 17.0 ± 0.5 years) were randomly assigned to either Cr (N = 9) or placebo (N = 10) group. Before and after supplementation, participants performed a 30s Wingate Anaerobic Test (WAnT) to assess peak power output (PPO), mean power output (MPO), fatigue index (FI), and total work...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28183441/similar-metabolic-response-to-lower-versus-upper-body-interval-exercise-or-endurance-exercise
#5
Monique E Francois, Matthew J Graham, Evelyn B Parr, Nancy J Rehrer, Samuel J E Lucas, Stasinos Stavrianeas, James D Cotter
PURPOSE: To compare energy use and substrate partitioning arising from repeated lower- versus upper-body sprints, or endurance exercise, across a 24-h period. METHODS: Twelve untrained males (24±4 y) completed three trials in randomized order: (1) repeated sprints (five 30-s Wingate, 4.5-min recovery) on a cycle ergometer (SITLegs); (2) 50-min continuous cycling at 65% V̇O2max (END); (3) repeated sprints on an arm-crank ergometer (SITArms). Respiratory gas exchange was assessed before and during exercise, and at eight points across 22h of recovery...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28182793/the-effect-of-exercise-intensity-on-skeletal-muscle-stress-kinase-and-insulin-protein-signaling
#6
Lewan Parker, Adam Trewin, Itamar Levinger, Christopher S Shaw, Nigel K Stepto
BACKGROUND: Stress and mitogen activated protein kinase (SAPK) signaling play an important role in glucose homeostasis and the physiological adaptation to exercise. However, the effects of acute high-intensity interval exercise (HIIE) and sprint interval exercise (SIE) on activation of these signaling pathways are unclear. METHODS: Eight young and recreationally active adults performed a single cycling session of HIIE (5 x 4 minutes at 75% Wmax), SIE (4 x 30 second Wingate sprints), and continuous moderate-intensity exercise work-matched to HIIE (CMIE; 30 minutes at 50% of Wmax), separated by a minimum of 1 week...
2017: PloS One
https://www.readbyqxmd.com/read/28182503/do-glucose-and-caffeine-nasal-sprays-influence-exercise-and-or-cognitive-performance
#7
Kevin De Pauw, Bart Roelands, Jeroen Van Cutsem, Lieselot Decroix, Angelica Valente, Kim Taehee, Robert B LettanII, Andres E Carrillo, Romain Meeusen
INTRODUCTION/PURPOSE: Since nasal sprays (NAS) containing caffeine (CAF) or glucose (GLUC) activate sensory(motor) cortices, the aim of this study was to investigate the influence of CAF or GLUC-NAS on exercise and cognitive performance. METHODS: Eleven male subjects (Age: 22±2 yrs) performed a maximal cycle test, two familiarization and three experimental trials. Each trial included a 30 s Wingate test and a 30 min time-trial (TT) performance test interspersed by 15 min of rest...
February 9, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28152468/humor-styles-moderate-borderline-personality-traits-and-suicide-ideation
#8
Neil A Meyer, Ashley C Helle, Raymond P Tucker, Gregory J Lengel, Hilary L DeShong, LaRicka R Wingate, Stephanie N Mullins-Sweatt
The way individuals use humor to interact interpersonally has been associated with general personality, depression, and suicidality. Certain humor styles may moderate the risk for suicide ideation (SI) in individuals who are high in specific risk factors (e.g., thwarted belongingness, perceived burdensomeness). Previous research suggests a relationship between humor styles and borderline personality disorder (BPD) and an increased risk of suicidality and suicide completion in individuals with BPD. Participants (n =176) completed measures of BPD traits, SI, and humor styles...
January 17, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28149383/physical-fitness-and-performance-of-polish-ice-hockey-players-competing-at-different-sports-levels
#9
Robert Roczniok, Arkadiusz Stanula, Tomasz Gabryś, Urszula Szmatlan-Gabryś, Artur Gołaś, Petr Stastny
The study aimed to determine the values of selected aerobic and anaerobic capacity variables, physical profiles, and to analyze the results of on-ice tests performed by ice-hockey players relegated to a lower league. Performance of 24 ice-hockey players competing in the top league in the 2012/2013 season was analysed to this end. In the 2013/2014 season, 14 of them still played in the top league (the control group), while 10 played in the first league (the experimental group). The study was conducted one week after the end of the playoffs in the seasons under consideration...
June 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28141870/cellular-stress-response-gene-expression-during-upper-and-lower-body-high-intensity-exercises
#10
Andrzej Kochanowicz, Stanisław Sawczyn, Bartłomiej Niespodziński, Jan Mieszkowski, Kazimierz Kochanowicz, Małgorzata Żychowska
OBJECTIVES: The aim was to compare the effect of upper and lower body high-intensity exercise on chosen genes expression in athletes and non-athletes. METHOD: Fourteen elite male artistic gymnasts (EAG) aged 20.6 ± 3.3 years and 14 physically active men (PAM) aged 19.9 ± 1.0 years performed lower and upper body 30 s Wingate Tests. Blood samples were collected before, 5 and 30 minutes after each effort to assess gene expression via PCR. RESULTS: Significantly higher mechanical parameters after lower body exercise was observed in both groups, for relative power (8...
2017: PloS One
https://www.readbyqxmd.com/read/28119876/analysis-of-physical-fitness-and-technical-skills-of-youth-soccer-players-according-to-playing-position
#11
Chang Hwa Joo, Dong-Il Seo
The purpose of this study was to compare performance factors of youth soccer players according to position. A total of 101 high school soccer players were selected and were classified into goalkeeper (n=7), defense (n=37), midfield (n=39), and forward (n=18) positions. All subjects were subjected to the Wingate test for anaerobic capacity, shuttle run test for aerobic capacity, and pass, kick, dribble, and shooting tests for soccer skills. There was no significant difference in aerobic capacity according to position...
December 2016: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28119874/performance-and-energy-systems-contributions-during-upper-body-sprint-interval-exercise
#12
Emerson Franchini, Monica Yuri Takito, Maria Augusta Peduti Dal'Molin Kiss
The main purpose of this study was to investigate the performance and energy systems contribution during four upper-body Wingate tests interspersed by 3-min intervals. Fourteen well-trained male adult Judo athletes voluntarily took part in the present study. These athletes were from state to national level, were in their competitive period, but not engaged in any weight loss procedure. Energy systems contributions were estimated using oxygen uptake and blood lactate measurements. The main results indicated that there was higher glycolytic contribution compared to oxidative (P<0...
December 2016: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28118307/neuromuscular-and-cardiovascular-adaptations-in-response-to-high-intensity-interval-power-training
#13
Salvador Romero-Arenas, Rubén Ruiz, Antonio Vera, David Colomer-Poveda, Amelia Guadalupe Grau, Gonzalo Márquez
The aim of the present study was to determine the efficacy of a high-intensity power training (HIPT) program, and to compare the effects of HIPT to traditional power training (TPT) on the aerobic and power performance. For this purpose, 29 healthy men (23.1±2.7 years) were recruited and randomly distributed into three different groups. One group performed traditional power training (TPT n=10), the second group performed power training organized as a circuit (HIPT; n=10) and the third group served as control (CG; n=9)...
January 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28116880/post-exercise-recovery-of-biological-clinical-and-metabolic-variables-after-different-temperatures-and-durations-of-cold-water-immersion-a-randomized-clinical-trial
#14
Franciele M Vanderlei, Maíra C DE Albuquerque, Aline C DE Almeida, Aryane F Machado, Jayme Netto, Carlos M Pastre
BACKGROUND: Cold water immersion (CWI) is a commonly used recuperative strategy. However there is a lack of standardization of protocols considering the duration and temperature of application of the technique and the stress model. Therefore is it important to study the issue of dose response in a specific stress model. Thus the objective was to analyze and compare the effects of CWI during intense post-exercise recovery using different durations and temperatures of immersion. METHODS: 105 male individuals were divided into five groups: one control group (CG) and four recovery groups (G1: 5' at 9±1°C; G2: 5' at 14±1oC; G3: 15' at 9±1°C; G4: 15' at 14±1°C)...
January 23, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28096758/effects-of-acute-ingestion-of-a-pre-workout-dietary-supplement-with-and-without-p-synephrine-on-resting-energy-expenditure-cognitive-function-and-exercise-performance
#15
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Elfego Galvan, Ryan Dalton, Dillon Walker, Christopher Rasmussen, Peter S Murano, Mike Greenwood, Richard B Kreider
BACKGROUND: The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and without p-synephrine (S) on perceptions of readiness to perform, cognitive function, exercise performance, and markers of safety. METHODS: In a randomized, double-blind, and counterbalanced manner; 25 healthy and recreationally active male and female participants ingested a flavored maltodextrin placebo (PLA), a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg) with 2 g of maltodextrin and flavoring; or, the PWS with Citrus aurantium (PWS + S) extract standardized for 30% p-synephrine (20 mg)...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28096757/effects-of-ingesting-a-pre-workout-dietary-supplement-with-and-without-synephrine-for-8%C3%A2-weeks-on-training-adaptations-in-resistance-trained-males
#16
Y Peter Jung, Conrad P Earnest, Majid Koozehchian, Minye Cho, Nick Barringer, Dillon Walker, Christopher Rasmussen, Mike Greenwood, Peter S Murano, Richard B Kreider
BACKGROUND: The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine (S) during training affects training responses in resistance-trained males. METHODS: Resistance-trained males (N = 80) were randomly assigned to supplement their diet in a double-blind manner with either a flavored placebo (PLA); a PWS containing beta-alanine (3 g), creatine nitrate as a salt (2 g), arginine alpha-ketoglutarate (2 g), N-Acetyl-L-Tyrosine (300 mg), caffeine (284 mg), Mucuna pruiriens extract standardized for 15% L-Dopa (15 mg), Vitamin C as Ascorbic Acid (500 mg), niacin (60 mg), folate as folic acid (50 mg), and Vitamin B12 as Methylcobalamin (70 mg); or, the PWS supplement with Citrus aurantium extract containing 20 mg of synephrine (PWS + S) once per day for 8-weeks during training...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28092056/a-randomised-placebo-controlled-crossover-study-investigating-the-effects-of-nicotine-gum-on-strength-power-and-anaerobic-performance-in-nicotine-na%C3%A3-ve-active-males
#17
Toby Mündel, Marine Machal, Darryl J Cochrane, Matthew J Barnes
BACKGROUND: Nicotine use amongst athletes is high and increasing, especially team sports, yet the limited previous studies investigating the performance consequences of this behaviour have not examined the effects of the principal active ingredient, nicotine, per se. Therefore, we determined whether nicotine gum affected muscular and anaerobic performance. METHODS: Nine active males (24 ± 3 years) completed three trials in a random order in which 20 min prior to testing they chewed 2 mg (NIC-2), 4 mg (NIC-4) nicotine or flavour-matched placebo (PLA) gum...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28090140/influence-of-warm-up-duration-and-recovery-interval-prior-to-exercise-on-anaerobic-performance
#18
M Frikha, N Chaâri, N Mezghanni, N Souissi
The purpose of the study was to determine the impact of different active warm-up (AWU) durations and the rest interval separating it from exercise on anaerobic performance. Eleven male physical education students (22.6 ± 2.52 years; 179.2 ± 4.3 cm; 82.5 ± 9.7 kg; mean ± SD) participated in a cross-over randomized study, and they all underwent the Wingate test after three AWU durations: 5 min (AWU5), 15 min (AWU15) and 20 min (AWU20), with recovery (WREC) or without a recovery interval (NREC) separating the AWU and anaerobic exercise performance...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28080323/oral-adenosine-5-triphosphate-atp-administration-increases-postexercise-atp-levels-muscle-excitability-and-athletic-performance-following-a-repeated-sprint-bout
#19
Martin Purpura, John A Rathmacher, Matthew H Sharp, Ryan P Lowery, Kevin A Shields, Jeremy M Partl, Jacob M Wilson, Ralf Jäger
OBJECTIVE: Oral adenosine-5'-triphosphate (ATP) administration has failed to increase plasma ATP levels; however, chronic supplementation with ATP has shown to increase power, strength, lean body mass, and blood flow in trained athletes. The purpose of this study was to investigate the effects of ATP supplementation on postexercise ATP levels and on muscle activation and excitability and power following a repeated sprint bout. METHODS: In a double-blind, placebo-controlled, randomized design, 42 healthy male individuals were given either 400 mg of ATP as disodium salt or placebo for 2 weeks prior to an exercise bout...
January 12, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28079707/effect-of-number-of-sprints-in-a-sit-session-on-change-in-vo2max-a-meta-analysis
#20
Niels Bj Vollaard, Richard S Metcalfe, Sean Williams
PURPOSE: Recent meta-analyses indicate that sprint interval training (SIT) improves cardiorespiratory fitness (V[Combining Dot Above]O2max), but the effects of various training parameters on the magnitude of the improvement remain unknown. The present meta-analysis examined the modifying effect of the number of sprint repetitions in a SIT session on improvements in V[Combining Dot Above]O2max. METHODS: The databases PubMed and Web of Science were searched for original studies that have examined pre- and post-training V[Combining Dot Above]O2max in adults following ≥2 weeks of training consisting of repeated (≥2) Wingate-type cycle sprints, published up to 1 May 2016...
January 10, 2017: Medicine and Science in Sports and Exercise
keyword
keyword
34971
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"