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SPRINT Trial

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https://www.readbyqxmd.com/read/29786621/a-resisted-sprint-improves-rate-of-force-development-during-a-20-m-sprint-in-athletes
#1
Gerald T Mangine, Kevin Huet, Cassie Williamson, Emily Bechke, Paul Serafini, David Bender, John Hudy, Jeremy Townsend
Mangine, GT, Huet, K, Williamson, C, Bechke, E, Serafini, P, Bender, D, Hudy, J, and Townsend, J. A resisted sprint improves rate of force development during a 20-m sprint in athletes. J Strength Cond Res 32(6): 1531-1537, 2018-This study examined the effect of a resisted sprint on 20-m sprinting kinetics. After a standardized warm-up, 23 (male = 10, female = 13) Division I basketball players completed 3 maximal 20-m sprint trials while tethered to a robotic resistance device. The first sprint (S1) used the minimal, necessary resistance (1 kg) to detect peak (PK) and average (AVG) sprinting power (P), velocity (V), and force (F); peak rate of force production (RFD) was also calculated...
June 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29775886/sprint-interval-training-sit-substantially-reduces-depressive-symptoms-in-major-depressive-disorder-mdd-a-randomized-controlled-trial
#2
Alice Minghetti, Oliver Faude, Henner Hanssen, Lukas Zahner, Markus Gerber, Lars Donath
Continuous aerobic exercise training (CAT) is considered a complementary treatment option in patients with major depressive disorder (MDD). Intermittent exercise training protocols, such as sprint interval training (SIT) have gained increasing popularity, but no studies on depressive symptoms following SIT in patients with MDD are available. Fifty-nine in-patients with MDD were randomly assigned to a SIT or CAT group. Medication was counterbalanced in both intervention arms. Both intervention groups received 3 weekly training sessions for 4-weeks (12 sessions in total)...
May 8, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29771824/psychological-and-behavioral-responses-to-interval-and-continuous-exercise
#3
Matthew J Stork, Martin J Gibala, Kathleen A Martin Ginis
PURPOSE: To compare psychological responses to, and preferences for, moderate-intensity continuous training (MICT), high-intensity interval training (HIIT), and sprint interval training (SIT) among inactive adults; and to investigate the relationships between affect, enjoyment, exercise preferences, and subsequent exercise behavior over a 4-wk follow-up period. METHODS: Thirty inactive men and women (21.23±3.81 y), inexperienced with HIIT or SIT, completed three trials of cycle ergometer exercise in random order on separate days: MICT (45min continuous; ~70-75% of heart rate maximum (HRmax)); HIIT (10x1 min bouts at ~85-90%HRmax with 1-min recovery periods); and SIT (3x20-s "all-out" sprints with 2-min recovery periods)...
May 16, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29769828/the-effect-of-half-time-re-warm-up-duration-on-intermittent-sprint-performance
#4
Takuma Yanaoka, Kyoko Kashiwabara, Yuta Masuda, Jumpei Yamagami, Kuran Kurata, Shun Takagi, Masashi Miyashita, Norikazu Hirose
The purpose of the present study was to investigate the effect of different durations of half-time re-warm up (RW) on intermittent sprint performance. Using a randomized crossover design, 13 healthy men performed three trials, which consisted of two, 40-min intermittent exercises separated by a 15-min half-time. Half-time interventions were 15 min of seated rest (Control), 7 min of cycling at 70% of maximal heart rate (HRmax ) (7 min RW), and 3 min of cycling at 70% of HRmax (3 min RW). The second 40-min intermittent exercise as an exercise performance test was the Cycling Intermittent-Sprint Protocol (CISP), which consisted of 10 s of rest, 5 s of maximal sprint, and 105 s of low-intensity exercise at 50% of VO2max , with the cycles repeated over the 40-min duration...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29745773/muscle-oxygenation-rather-than-vo-2-max-is-a-strong-predictor-of-performance-in-sprint-canoe-kayak
#5
Myriam Paquette, François Bieuzen, François Billaut
PURPOSE: This study aimed to characterize the relationships between muscle oxygenation and performance during on- and off-water tests in highly trained sprint canoe-kayak athletes. METHODS: Thirty athletes (19 kayakers and 11 canoeists) performed a maximal incremental test on a canoe or kayak ergometer for determination of VO2max and examination of the relation between peak power output (PPO) and physiological parameters. A subset of 21 athletes also performed a 200-m and a 500-m (for women) or 1000-m (for men) on-water time trials...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29731026/applicability-of-the-systolic-blood-pressure-intervention-trial-sprint-to-the-canadian-population
#6
Alexander A Leung, Hsiu-Ju Chang, Finlay A McAlister, Nadia A Khan, Doreen M Rabi, Hude Quan, Raj S Padwal
BACKGROUND: The Systolic Blood Pressure Intervention Trial (SPRINT) showed significant reductions in major cardiovascular events and all-cause mortality with a systolic blood pressure (BP) goal of < 120 mm Hg compared with < 140 mm Hg. We sought to determine the proportion of Canadian adults who meet SPRINT eligibility criteria. METHODS: We conducted a cross-sectional study using cycles 1-3 of the nationally representative Canadian Health Measures Survey to estimate the prevalence and characteristics of Canadian adults between the ages of 20 and 79 who meet SPRINT eligibility criteria: age ≥ 50 years, elevated systolic BP of 130-180 mm Hg, and increased cardiovascular risk (with chronic kidney disease, Framingham Risk Score ≥ 15% in 10 years, and/or cardiovascular disease) but without diabetes, stroke, or end-stage renal disease...
May 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29729964/the-test-retest-reliability-and-criterion-validity-of-a-high-intensity-netball-specific-circuit-test-the-net-test
#7
Sean F Mungovan, Paula J Peralta, Gregory C Gass, Aaron T Scanlan
OBJECTIVES: To examine the test-retest reliability and criterion validity of a high-intensity, netball-specific fitness test. DESIGN: Repeated measures, within-subject design. METHODS: Eighteen female netball players competing in an international competition completed a trial of the Net-Test, which consists of 14 timed netball-specific movements. Players also completed a series of netball-relevant criterion fitness tests. Ten players completed an additional Net-Test trial one week later to assess test-retest reliability using intraclass correlation coefficient (ICC), typical error of measurement (TEM), and coefficient of variation (CV)...
April 12, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29725756/lactate-kinetics-in-handcycling-under-various-exercise-modalities-and-their-relationship-to-performance-measures-in-able-bodied-participants
#8
Oliver J Quittmann, Thomas Abel, Sebastian Zeller, Tina Foitschik, Heiko K Strüder
PURPOSE: The aim of this study was to expand exercise testing in handcycling by (1) examining different approaches to determine lactate kinetics in handcycling under various exercise modalities and (2) identifying relationships between parameters of lactate kinetics and selected performance measures. METHODS: Twelve able-bodied nationally competitive triathletes performed a familiarisation, a sprint test, an incremental step test, and a continuous load trial at a power output corresponding to a lactate concentration (La) of 4 mmol l-1 (PO4 ) in a racing handcycle that was mounted on an ergometer...
May 3, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29722251/effects-of-local-versus-remote-ischemic-preconditioning-on-repeated-sprint-running-performance
#9
Patrick J Griffin, Luke Hughes, Conor Gissane, Stephen D Patterson
BACKGROUND: The aim of this study was to compare the effect of local and remote ischemic preconditioning (IPC) on repeated sprint exercise. METHODS: Twelve males (age 22 ± 2 years; stature 1.79±0.07 m; body mass 77.8±8.4 kg; mean ± SD) completed four trials consisting of remote (arm) and local (leg) IPC and SHAM interventions prior to repeated sprint exercise (3 x (6 x 15 + 15-m) shuttle sprints), in a double-blind, randomised, crossover designed study. These tests were immediately preceded by IPC (4 x 5 minute intervals at 220 mmHg bilateral occlusion) or SHAM treatment (4 x 5 minute intervals at 20 mmHg bilateral occlusion)...
May 2, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29720949/active-recovery-after-high-intensity-interval-training-does-not-attenuate-training-adaptation
#10
Thimo Wiewelhove, Christoph Schneider, Alina Schmidt, Alexander Döweling, Tim Meyer, Michael Kellmann, Mark Pfeiffer, Alexander Ferrauti
Objective: High-intensity interval training (HIIT) can be extremely demanding and can consequently produce high blood lactate levels. Previous studies have shown that lactate is a potent metabolic stimulus, which is important for adaptation. Active recovery (ACT) after intensive exercise, however, enhances blood lactate removal in comparison with passive recovery (PAS) and, consequently, may attenuate endurance performance improvements. Therefore, the aim of this study was to examine the influence of regular ACT on training adaptations during a HIIT mesocycle...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29717337/exercise-training-decreases-pancreatic-fat-content-and-improves-beta-cell-function-regardless-of-baseline-glucose-tolerance-a-randomised-controlled-trial
#11
Marja A Heiskanen, Kumail K Motiani, Andrea Mari, Virva Saunavaara, Jari-Joonas Eskelinen, Kirsi A Virtanen, Mikko Koivumäki, Eliisa Löyttyniemi, Pirjo Nuutila, Kari K Kalliokoski, Jarna C Hannukainen
AIMS/HYPOTHESIS: Pancreatic fat accumulation may contribute to the development of beta cell dysfunction. Exercise training improves whole-body insulin sensitivity, but its effects on pancreatic fat content and beta cell dysfunction are unclear. The aim of this parallel-group randomised controlled trial was to evaluate the effects of exercise training on pancreatic fat and beta cell function in healthy and prediabetic or type 2 diabetic participants and to test whether the responses were similar regardless of baseline glucose tolerance...
May 2, 2018: Diabetologia
https://www.readbyqxmd.com/read/29712745/impact-of-intensive-versus-standard-blood-pressure-management-by-tertiles-of-blood-pressure-in-sprint-systolic-blood-pressure-intervention-trial
#12
Brian P Shapiro, Walter T Ambrosius, Joseph L Blackshear, William C Cushman, Paul K Whelton, Suzanne Oparil, Srinivasan Beddhu, Jamie P Dwyer, Lisa H Gren, William J Kostis, Michael Lioudis, Roberto Pisoni, Clive Rosendorff, William E Haley
Intensive systolic blood pressure (SBP) control improved outcomes in SPRINT (Systolic Blood Pressure Intervention Trial). Our objective was to expand on reported findings by analysis of baseline characteristics, primary outcomes, adverse events, follow-up blood pressure, and medication use differences by baseline SBP (tertile 1 [T1], <132; tertile 2 [T2], 132-145; and tertile 3 [T3], >145 mm Hg). Participants with higher baseline SBP tertile were more often women and older, had higher cardiovascular risk, and lower utilization of antihypertensive medications, statins, and aspirin...
April 30, 2018: Hypertension
https://www.readbyqxmd.com/read/29708477/dribble-deficit-a-novel-method-to-measure-dribbling-speed-independent-of-sprinting-speed-in-basketball-players
#13
Aaron T Scanlan, Neal Wen, Tania Spiteri, Zoran Milanović, Daniele Conte, Joshua H Guy, Anne Delextrat, Vincent J Dalbo
Basketball tests assessing dribbling speed predicated on total performance times are influenced by sprinting speed. This study examines an approach termed Dribble Deficit to counter this limitation by examining the relationships between sprinting and dribbling speed during linear and change-of-direction (COD) tasks measured using total performance time and Dribble Deficit. Ten semi-professional basketball players completed linear sprints and COD sprints with and without dribbling. Dribble Deficit was calculated as the difference between the best time for each dribbling trial and corresponding non-dribbling trial for linear and COD sprints...
April 30, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29703600/vascular-toxicities-with-vegf-inhibitor-therapies-focus-on-hypertension-and-arterial-thrombotic-events
#14
REVIEW
Rhian M Touyz, Sandra M S Herrmann, Joerg Herrmann
The vascular endothelial growth factor (VEGF) signaling pathway (VSP) fulfills a cardinal role in endothelial cells and its inhibition has profound cardiovascular impact. This is true not only for the normal vasculature but also for the tumor vasculature when VSP inhibitors are used as anti-angiogenic therapies. Generalized endothelial dysfunction predisposes to vasoconstriction, atherosclerosis, platelet activation, and thrombosis (arterial more than venous). All of these have been reported with VSP inhibitors and collectively give rise to vascular toxicities, the most concerning of which are arterial thromboembolic events (ATE)...
March 21, 2018: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29692951/underwater-near-infrared-spectroscopy-can-measure-training-adaptations-in-adolescent-swimmers
#15
Ben Jones, Dave Parry, Chris E Cooper
The development of an underwater near-infrared spectroscopy (uNIRS) device has enabled previously unattainable measurements of peripheral muscle hemodynamics and oxygenation to be taken within the natural aquatic environment. The purposes of this study were (i) to trial the use of uNIRS, in a real world training study, and (ii) to monitor the effects of a swim training program upon muscle oxygenation status in short distance swimming. A total of 14 junior club level swimmers completed a repeated swim sprint test before and after an eight week endurance training program...
2018: PeerJ
https://www.readbyqxmd.com/read/29685860/intensive-systolic-blood-pressure-control-and-incident-chronic-kidney-disease-in-people-with-and-without-diabetes-mellitus-secondary-analyses-of-two-randomised-controlled-trials
#16
Srinivasan Beddhu, Tom Greene, Robert Boucher, William C Cushman, Guo Wei, Gregory Stoddard, Joachim H Ix, Michel Chonchol, Holly Kramer, Alfred K Cheung, Paul L Kimmel, Paul K Whelton, Glenn M Chertow
BACKGROUND: Guidelines, including the 2017 American College of Cardiology and American Heart Association blood pressure guideline, recommend tighter control of systolic blood pressure in people with type 2 diabetes. However, it is unclear whether intensive lowering of systolic blood pressure increases the incidence of chronic kidney disease in this population. We aimed to compare the effects of intensive systolic blood pressure control on incident chronic kidney disease in people with and without type 2 diabetes...
April 20, 2018: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/29668752/the-cyp1a2-163c-a-polymorphism-does-not-alter-the-effects-of-caffeine-on-basketball-performance
#17
Carlos Puente, Javier Abián-Vicén, Juan Del Coso, Beatriz Lara, Juan José Salinero
PURPOSE: The aim of this investigation was to analyze the influence of the genetic variations of the -163C>A polymorphism of the CYP1A2 gene on the ergogenic effects of caffeine in elite basketball players. METHODS: Nineteen elite basketball players (10 men and 9 women) ingested 3 mg⋅kg-1 of caffeine or a placebo 60 min before performing 10 repetitions of the following series: the Abalakov jump test followed by the Change-of-Direction and Acceleration Test (CODAT)...
2018: PloS One
https://www.readbyqxmd.com/read/29663195/which-target-blood-pressure-in-year-2018-evidence-from-recent-clinical-trials
#18
REVIEW
Sondre Heimark, Julian E Mariampillai, Krzysztof Narkiewicz, Peter M Nilsson, Sverre E Kjeldsen
The Systolic Blood Pressure Intervention Trial (SPRINT) suggested a favourable effect of lowering blood pressure to < 120/80 mmHg in high-risk hypertensive patients; however, new American guidelines in 2017 have not followed SPRINT but lowered its recommended treatment target to < 130/80 mmHg. We aimed to review the latest research from large randomised controlled trials and observational analyses in order to investigate the evidence for new treatment targets. We assessed recent data from the Action to Control Cardiovascular Risk in Diabetes Blood Pressure (ACCORD) study, the International Verapamil-Trandolapril Study (INVEST), the Telmisartan, Ramipril or Both in Patients at High Risk for Vascular Events trial (ONTARGET)/the Telmisartan Randomised AssessmenNt Study in aCE iNtolerant participants with cardiovascular Disease (TRANSCEND) study and The Losartan Intervention For Endpoint Reduction in Hypertension (LIFE) study...
April 16, 2018: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/29610446/mechanisms-of-lead-failure-by-recall-status-and-manufacturer-results-from-the-pacemaker-and-implantable-defibrillator-leads-survival-study-paidless
#19
Sam N Schwarzwald, Daniel J Kersten, Zohaib A Shaikh, Brandon S Needelman, Alyssa M Feldman, Joseph Germano, Shahidul Islam, Todd J Cohen
OBJECTIVES: The aim of this study was to determine the differences in lead failure mechanisms across the major United States implantable defibrillator lead manufacturers (Boston Scientific, Medtronic, and St. Jude Medical), between all non-recalled and recalled leads, and between two recalled lead families (Medtronic Sprint Fidelis and the St. Jude Medical Riata and Riata ST). METHODS: This was a single-center, non-randomized, retrospective study analyzing 3802 patients with 4078 leads who underwent implantable defibrillator lead implantation between February 1, 1996 and December 31, 2011...
April 2018: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29584462/effects-of-caffeinated-gum-on-a-battery-of-soccer-specific-tests-in-trained-university-standard-male-soccer-players
#20
Mayur K Ranchordas, George King, Mitchell Russell, Anthony Lynn, Mark Russell
The purpose of this study was to determine whether caffeinated gum influenced performance in a battery of soccer-specific tests used in the assessment of performance in soccer players. In a double blind, randomised, cross-over design, ten male university-standard soccer players (age 19 ± 1 y, stature 1.80 ± 0.10 m, body mass 75.5 ± 4.8 kg) masticated a caffeinated (200 mg; caffeine) or control (0 mg; placebo) gum on two separate occasions. After a standardised warm-up, gum was chewed for 5 min and subsequently expectorated 5 min before players performed a maximal countermovement jump, a 20 m sprint test and the Yo-Yo intermittent recovery test level 1 (Yo-YoIR1)...
March 27, 2018: International Journal of Sport Nutrition and Exercise Metabolism
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