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https://www.readbyqxmd.com/read/28441760/supplementation-with-a-polyphenol-rich-extract-perfload-%C3%A2-improves-physical-performance-during-high-intensity-exercise-a-randomized-double-blind-crossover-trial
#1
Julien Cases, Cindy Romain, Cristian Marín-Pagán, Linda H Chung, José Miguel Rubio-Pérez, Caroline Laurent, Sylvie Gaillet, Emmanuelle Prost-Camus, Michel Prost, Pedro E Alcaraz
Workout capacity is energy-production driven. To produce peak metabolic power outputs, the organism predominantly relies more on anaerobic metabolism, but this undoubtedly has a negative and limiting impact on muscle function and performance. The aim of the study was to evaluate if an innovative polyphenol-based food supplement, PerfLoad(®), was able to improve metabolic homeostasis and physical performance during high-intensity exercises under anaerobic conditions. The effect of a supplementation has been investigated on fifteen recreationally-active male athletes during a randomized, double-blind and crossover clinical investigation...
April 24, 2017: Nutrients
https://www.readbyqxmd.com/read/28434465/therapeutic-singing-as-an-early-intervention-for-swallowing-in-persons-with-parkinson-s-disease
#2
E L Stegemöller, P Hibbing, H Radig, J Wingate
OBJECTIVE: For persons with Parkinson's disease (PD), secondary motor symptoms such as swallow impairment impact the quality of life and are major contributors to mortality. There is a present need for therapeutic interventions aimed at improving swallow function during the early stages of PD. The purpose of this pilot study was to examine the effects of a group therapeutic singing intervention on swallowing in persons with PD with no significant dysphagia symptoms. DESIGN: Cohort study...
April 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28391489/research-into-the-health-benefits-of-sprint-interval-training-should-focus-on-protocols-with-fewer-and-shorter-sprints
#3
Niels B J Vollaard, Richard S Metcalfe
Over the past decade, it has been convincingly shown that regularly performing repeated brief supramaximal cycle sprints (sprint interval training [SIT]) is associated with aerobic adaptations and health benefits similar to or greater than with moderate-intensity continuous training (MICT). SIT is often promoted as a time-efficient exercise strategy, but the most commonly studied SIT protocol (4-6 repeated 30-s Wingate sprints with 4 min recovery, here referred to as 'classic' SIT) takes up to approximately 30 min per session...
April 8, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28379172/very-low-volume-sprint-interval-exercise-suppresses-subjective-appetite-lowers-acylated-ghrelin-and-elevates-glp-1-in-overweight-individuals-a-pilot-study
#4
Adrian Holliday, Andrew K Blannin
High-intensity exercise has been shown to elicit a transient suppression of appetite and create a more anorexigenic profile of appetite-associated hormones. It is yet to be fully elucidated whether such a response is observed following very low-volume, intermittent exercise at supramaximal intensity in those who are overweight. Eight overweight individuals (BMI 27.7 ± 1.7 kg·m²) completed resting (REST) and exercise (EX) trials in a counterbalanced order. EX consisted of 4 × 30 s "flat-out" cycling on an ergometer (adapted Wingate test)...
April 5, 2017: Nutrients
https://www.readbyqxmd.com/read/28371585/validity-of-field-assessments-to-predict-peak-muscle-power-in-preschoolers
#5
Sara King-Dowling, Nicole A Proudfoot, John Cairney, Brian W Timmons
BACKGROUND: Field-based fitness assessments are time- and cost-efficient. However, no studies to date have reported the predictive value of field-based musculoskeletal fitness assessments in preschoolers. The purpose of this study was to determine the validity of two field assessments to predict peak muscle power in preschool-aged children. METHODS: Four-hundred nineteen 3- to 5-year olds participated (208 girls, 211 boys; mean age: 4.5±0.9 years). Peak power (PP) was evaluated using a modified 10-second Wingate protocol as the criterion standard...
April 3, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28350415/anaerobic-exercise-testing-in-rehabilitation-a-systematic-review-of-available-tests-and-protocols
#6
Leonie A Krops, Trijntje Albada, Lucas H V van der Woude, Juha M Hijmans, Rienk Dekker
OBJECTIVE: Anaerobic capacity assessment in rehabilitation has received increasing scientific attention in recent years. However, anaerobic capacity is not tested consistently in clinical rehabilitation practice. This study reviews tests and protocols for anaerobic capacity in adults with various disabilities (spinal cord injury, cerebral palsy, cerebral vascular accident, lower-limb amputation(s)) and (able-bodied) wheelchair users. DATA SOURCES: PubMed, CINAHL and Web of Science...
March 28, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28338369/dha-rich-fish-oil-increases-the-omega-3-index-and-lowers-the-oxygen-cost-of-physiologically-stressful-cycling-in-trained-individuals
#7
Lachlan Hingley, Michael J Macartney, Marc A Brown, Peter L McLennan, Gregory E Peoples
Dietary fish oil, providing docosahexaenoic acid (DHA) modulates oxygen consumption and fatigue in animal models. However, in humans predominately supplemented with high eicosapentaenoic acid (EPA), there is no evidence of endurance performance enhancement. Therefore, this study examined if DHA-rich fish oil could improve repeated bouts of physiologically stressful cycling and a subsequent time trial in a state of fatigue. Twenty-six trained males took part in a double-blind study and were supplemented with either 2x1g/day soy oil (Control) or DHA-rich tuna fish oil (Nu-Mega) (FO) (560mg DHA / 140mg eicosapentaenoic acid (EPA)) for eight weeks...
March 24, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28338362/the-effects-of-caffeine-taurine-or-caffeine-taurine-co-ingestion-on-repeat-sprint-cycling-performance-and-physiological-responses
#8
Rory Warnock, Owen Jeffries, Stephen Patterson, Mark Waldron
PURPOSE: This study investigated the effects of caffeine (C), taurine (T), caffeine and taurine co-ingestion (C+T) or placebo (P) on repeated Wingate cycling performance and associated physiological responses. METHODS: Seven male team sports players participated in a randomised, single-blind, cross-over study, where they completed three Wingate tests, each separated by 2-min, an hour after ingesting: C (5 mg/kg BM), T (50 mg/kg BM), C+T (5 mg/kg BM + 50 mg/kg BM) or P (5 mg/kg BM) in a gelatine capsule...
March 24, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28287486/cyp1a2-genotype-variations-do-not-modify-the-benefits-and-drawbacks-of-caffeine-during-exercise-a-pilot-study
#9
Juan J Salinero, Beatriz Lara, Diana Ruiz-Vicente, Francisco Areces, Carlos Puente-Torres, César Gallo-Salazar, Teodoro Pascual, Juan Del Coso
Previous investigations have determined that some individuals have minimal or even ergolytic performance effects after caffeine ingestion. The aim of this study was to analyze the influence of the genetic variations of the CYP1A2 gene on the performance enhancement effects of ingesting a moderate dose of caffeine. In a double-blind randomized experimental design, 21 healthy active participants (29.3 ± 7.7 years) ingested 3 mg of caffeine per kg of body mass or a placebo in testing sessions separated by one week...
March 11, 2017: Nutrients
https://www.readbyqxmd.com/read/28277166/developing-through-bereavement-dealing-with-loss-during-adolescencedealing-with-dying-death-and-grief-during-adolescence-by-david-e-balk-contributors-corinne-cavuoti-and-anne-m-smith-new-york-ny-routledge-2014-265-pp-isbn-978-0-415-53450-50-39-95-paperback
#10
https://www.readbyqxmd.com/read/28253027/wingate-test-is-a-strong-predictor-of-1500m-performance-in-elite-speed-skaters
#11
Nico Hofman, Jac Orie, Marco J M Hoozemans, Carl Foster, Jos J de Koning
Wingate test scores are strongly associated with anaerobic capacity in athletes involved in speed-endurance sports. In speed skating Wingate results are known to predict performance cross-sectionally, but have not been investigated relative to their ability to predict performance longitudinally. PURPOSE: To investigate whether Wingate tests performed during summer training are predictive of 1500m speed skating performance the subsequent winter in elite speed skaters. METHODS: Wingate test results from the summer training periods and 1500m performances during the subsequent winter were analyzed over a 3-year period, in 5 female and 8 male elite (Olympic, World Championship and World Cup medalists) speed skaters...
March 2, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28209802/doublet-stimulation-increases-ca-2-binding-to-troponin-c-to-ensure-rapid-force-development-in-skeletal-muscle
#12
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...
March 6, 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
#13
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...
May 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28197819/disparities-in-infant-mortality-by-race-among-hispanic-and-non-hispanic-infants
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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...
March 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28149383/physical-fitness-and-performance-of-polish-ice-hockey-players-competing-at-different-sports-levels
#20
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
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