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Sprint interval training

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https://www.readbyqxmd.com/read/29775886/sprint-interval-training-sit-substantially-reduces-depressive-symptoms-in-major-depressive-disorder-mdd-a-randomized-controlled-trial
#1
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
#2
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/29764731/how-much-is-enough-in-rehabilitation-high-running-workloads-following-lower-limb-muscle-injury-delay-return-to-play-but-protect-against-subsequent-injury
#3
Jordan Stares, Brian Dawson, Peter Peeling, Michael Drew, Jarryd Heasman, Brent Rogalski, Marcus Colby
OBJECTIVES: Examine the influence of rehabilitation training loads on return to play (RTP) time and subsequent injury in elite Australian footballers. DESIGN: Prospective cohort study. METHODS: Internal (sessional rating of perceived exertion: sRPE) and external (distance, sprint distance) workload and lower limb non-contact muscle injury data was collected from 58 players over 5 seasons. Rehabilitation periods were analysed for running workloads and time spent in 3 rehabilitation stages (1: off-legs training, 2: non-football running, 3: group football training) was calculated...
April 10, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29745801/cold-water-immersion-after-training-sessions-effects-on-fiber-type-specific-adaptations-in-muscle-k-transport-proteins-to-sprint-interval-training-in-men
#4
Danny Christiansen, David John Bishop, James R Broatch, Jens Bangsbo, Michael John McKenna, Robyn M Murphy
Effects of regular use of cold-water immersion (CWI) on fiber type-specific adaptations in muscle K+ transport proteins to intense training, along with their relationship to changes in mRNA levels after the first training session, were investigated in humans. Nineteen recreationally-active men (24{plus minus}6 y, 79.5{plus minus}10.8 kg, 44.6{plus minus}5.8 mL∙kg-1 ∙min-1 ) completed six weeks of sprint-interval cycling either without (passive rest; CON) or with training sessions followed by CWI (15 min at 10{degree sign}C; COLD)...
May 10, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29733694/contribution-of-central-and-peripheral-adaptations-to-changes-in-vo-sub-2-sub-max-following-four-weeks-of-sprint-interval-training
#5
James P Raleigh, Matthew D Giles, Hashim Islam, Matthew William Nelms, Robert F Bentley, Joshua H Jones, J Alberto Neder, Kristen Boonstra, Joe Quadrilatero, Craig A Simpson, Michael E Tschakovsky, Brendon J Gurd
The current study examined the contribution of central and peripheral adaptations to changes in maximal oxygen uptake (VO<sub>2</sub>max) following sprint interval training (SIT). Twenty-three males completed four weekly SIT sessions (8 x 20 second cycling bouts at ~170% of work rate at VO<sub>2</sub>max, 10 second recovery) for four weeks. Following completion of training, the relationship between changes in VO<sub>2</sub>max and changes in central (cardiac output) and peripheral (a-vO<sub>2</sub>diff, muscle capillary density, oxidative capacity, fibre-type distribution) adaptations was determined in all participants using correlation analysis...
May 7, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29726077/brachial-artery-endothelial-function-is-unchanged-after-acute-sprint-interval-exercise-in-sedentary-men-and-women
#6
Ninette Shenouda, Lauren E Skelly, Martin J Gibala, Maureen J MacDonald
NEW FINDINGS: What is the central question of this study? What is the acute brachial artery endothelial function response to sprint interval exercise and are there sex-based differences? What is the main finding and its importance? Brachial artery endothelial function did not change in either men or women following an acute session of SIT consisting of 3 × 20-s 'all-out' cycling sprints. Our findings suggest this low-volume protocol may not be sufficient to induce functional changes in the brachial artery of sedentary, but otherwise healthy adults...
May 3, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29720949/active-recovery-after-high-intensity-interval-training-does-not-attenuate-training-adaptation
#7
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/29719513/adaptive-changes-after-2-weeks-of-10-s-sprint-interval-training-with-various-recovery-times
#8
Robert A Olek, Sylwester Kujach, Ewa Ziemann, Wieslaw Ziolkowski, Piotr Waz, Radoslaw Laskowski
Purpose: The aim of this study was to compare the effect of applying two different rest recovery times in a 10-s sprint interval training session on aerobic and anaerobic capacities as well as skeletal muscle enzyme activities. Methods: Fourteen physically active but not highly trained male subjects (mean maximal oxygen uptake 50.5 ± 1.0 mlO2 ·kg-1 ·min-1 ) participated in the study. The training protocol involved a series of 10-s sprints separated by either 1-min (SIT10:1) or 4-min (SIT10:4) of recovery...
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
#9
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/29701444/hiit-produces-increases-in-muscle-power-and-free-testosterone-in-male-masters-athletes
#10
P Herbert, L D Hayes, N F Sculthorpe, F M Grace
High-intensity interval training (HIIT) improves peak power output (PPO) in sedentary aging men but has not been examined in masters endurance athletes. Therefore, we investigated whether a six-week program of low-volume HIIT would (i) improve PPO in masters athletes and (ii) whether any change in PPO would be associated with steroid hormone perturbations. Seventeen male masters athletes (60 ± 5 years) completed the intervention, which comprised nine HIIT sessions over six weeks. HIIT sessions involved six 30-s sprints at 40% PPO, interspersed with 3 min active recovery...
October 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29675669/can-we-draw-general-conclusions-from-interval-training-studies
#11
Ricardo Borges Viana, Claudio Andre Barbosa de Lira, João Pedro Araújo Naves, Victor Silveira Coswig, Fabrício Boscolo Del Vecchio, Rodrigo Ramirez-Campillo, Carlos Alexandre Vieira, Paulo Gentil
Interval training (IT) has been used for many decades with the purpose of increasing performance and promoting health benefits while demanding a relatively small amount of time. IT can be defined as intermittent periods of intense exercise separated by periods of recovery and has been divided into high-intensity interval training (HIIT), sprint interval training (SIT), and repeated sprint training (RST). IT use has resulted in the publication of many studies and many of them with conflicting results and positions...
April 19, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29619796/overnight-fasting-compromises-exercise-intensity-and-volume-during-sprint-interval-training-but-improves-high-intensity-aerobic-endurance
#12
Tasuku Terada, Saeed R Toghi Eshghi, Yilina Liubaoerjijin, Michael Kennedy, Etienne Myette-Côté, Kevin Fletcher, Normand G Boulé
BACKGROUND: The combined effects of sprint interval training (SIT) and exercising in the fasted state are unknown. We compared the effects of SIT with exogenous carbohydrate supplementation (SITCHO) and SIT following overnight fast (SITFast) on aerobic capacity (peak oxygen consumption: V̇ O2peak) and high-intensity aerobic endurance (time-to-exhaustion at 85% V̇ O2peak [T85%]). METHODS: Twenty male cyclists were randomized to SITCHO and SITFast. Both groups performed 30-second all-out cycling followed by 4-minute active recovery 3 times per week for 4 weeks, with the number of sprint bouts progressing from 4 to 7...
April 4, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29618979/improvements-in-attention-and-cardiac-autonomic-modulation-after-a-2-weeks-sprint-interval-training-program-a-fidelity-approach
#13
Arilson F M de Sousa, André R Medeiros, Stefano Benitez-Flores, Sebastián Del Rosso, Matthew Stults-Kolehmainen, Daniel A Boullosa
This study aimed to: (1) investigate the influence of a 2-weeks sprint interval training (SIT) program on aerobic capacity, cardiac autonomic control, and components of attention in young healthy university students; and (2) to ascertain whether training fidelity would influence these adaptations. One hundred and nine participants were divided into an experimental (EG) and control (CG) groups. The EG performed a SIT program that consisted of 6 sessions of 4 × 30 s "all-out" efforts on a cycle ergometer, interspersed with active rests of 4 min...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29611322/small-non-coding-rnas-are-altered-by-short-term-sprint-interval-training-in-men
#14
Joshua Denham, Adrian J Gray, John Scott-Hamilton, Amanda D Hagstrom, Aron J Murphy
Small non-coding RNAs (ncRNAs) are emerging as important molecules for normal biological processes and are deregulated in disease. Exercise training is a powerful therapeutic strategy that prevents cardiometabolic disease and improves cardiorespiratory fitness and performance. Despite the known systemic health benefits of exercise training, the underlying molecular mechanisms are incompletely understood. Recent evidence suggests a role for epigenetic mechanisms, such as microRNAs, but whether other small ncRNAs are modulated by chronic exercise training is unknown...
April 2018: Physiological Reports
https://www.readbyqxmd.com/read/29570537/myocellular-responses-to-concurrent-flywheel-training-during-70-days-of-bed-rest
#15
Kevin A Murach, Kiril Minchev, Greg J Grosicki, Kaleen Lavin, Ryan K Perkins, Jeffrey W Ryder, Jessica Scott, Lori Ploutz-Snyder, Todd A Trappe, Scott Trappe
PURPOSE: This investigation evaluated myocellular responses to an integrated resistance and aerobic training program (SPRINT) during 70 days of bed rest. METHODS: Training was six days per week on a small-footprint gravity-independent flywheel resistance and aerobic device (FLY); three days of maximal flywheel supine quadriceps and calf exercises with continuous rowing separated by 4-6 hours, and three days of interval rowing. Vastus lateralis (VL) and soleus (SOL) muscle biopsies were obtained from eight healthy males (age=28±4 y, BMI=25±3 kg•m, VO2max=42±6 ml•kg•min) before and after 6° head-intrdown tilt bed rest...
March 22, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29556489/training-effects-of-the-fifa-11-kids-on-physical-performance-in-youth-football-players-a-randomized-control-trial
#16
Carlos Pomares-Noguera, Francisco Ayala, Francisco Javier Robles-Palazón, Juan F Alomoto-Burneo, Alejandro López-Valenciano, José L L Elvira, Sergio Hernández-Sánchez, Mark De Ste Croix
Objective: To analyze the training effects of the FIFA 11+ kids on several parameters of physical performance in male youth football players. Materials and methods: Twenty-three youth players were randomized within each team into two groups (control vs. intervention). The intervention group performed the FIFA 11+ kids programme 2 times a week for 4 weeks; the control groups completed their normal warm-up routines. Thirteen physical performance measures {range of motion (hip, knee, and ankle joints), dynamic postural control (measured throughout the Y balance test), 20 m sprint time, slalom dribble with a ball, agility, vertical jumping height [counter movement jump (CMJ) and drop jump (DJ)], horizontal jump distance, accuracy when volleying a ball [measured throughout the Wall Volley test]} were assessed...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29533360/sex-comparison-of-knee-extensor-size-strength-and-fatigue-adaptation-to-sprint-interval-training
#17
Liam Bagley, Nasser Al-Shanti, Steven Bradburn, Osamah Baig, Mark Slevin, Jamie S McPhee
BACKGROUND: Regular sprint interval training (SIT) improves whole-body aerobic capacity and muscle oxidative potential, but very little is known about knee extensor anabolic or fatigue resistance adaptations, or whether effects are similar for males and females. The purpose of this study was to compare sex-related differences in knee extensor size, torque-velocity relationship and fatigability adaptations to 12 weeks SIT. METHODS: Sixteen males and fifteen females (mean (SEM) age: 41 (±2...
March 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29528955/effects-of-small-sided-games-and-high-intensity-interval-training-on-aerobic-and-repeated-sprint-performance-and-peripheral-muscle-oxygenation-changes-in-elite-junior-basketball-players
#18
A Delextrat, M Gruet, F Bieuzen
The aim of the current study was to compare the effects of 6 weeks of small-sided game (SSG) and high-intensity interval training (HIIT) on aerobic fitness and muscle oxygenation during a repeated sprint (RS) sequence in elite male junior basketball players. Twenty participants (14.3 ± 0.5 years; 176.8 ± 12.5 cm; 74.5 ± 9.8 kg) performed pre- and post-tests interspersed by 6-weeks of SSG or HIIT training. Testing sessions consisted of the 30-15 Intermittent Fitness Test and a RS sequence (two bouts of 15-s)...
March 6, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29511660/sprint-interval-training-on-the-vertical-treadmill-improves-aerobic-and-anaerobic-running-performance
#19
Alastair Ross Jordan, David Claxton, Alison Purvis, Andrew Barnes, Mary Fysh
The vertical treadmill (VertiRun) is an unresearched mode of exercise where users engage in a "running-like" action whilst body weight is supported by a recumbent bench and overhanging resistance cables are tethered to the user's ankles. The purpose of this study was to determine the effects of training on a VertiRun and any cross-training effect on running performance. Thirty active males (age, 22±4 years; stature, 1.79±0.08 m; body mass, 78.5±12.6 kg) volunteered for this study. Participants' aerobic and anaerobic running performance were determined by incremental maximum rate of oxygen consumption (VO2max) treadmill test and a maximum anaerobic running test (MART), respectively...
February 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29494294/discrete-physiological-effects-of-beetroot-juice-and-potassium-nitrate-supplementation-following-4-weeks-sprint-interval-training
#20
Christopher Thompson, Anni Vanhatalo, Stefan Kadach, Lee J Wylie, Jonathan Fulford, Scott K Ferguson, Jamie R Blackwell, Stephen J Bailey, Andrew M Jones
The physiological and exercise performance adaptations to sprint interval training (SIT) may be modified by dietary nitrate (NO3 - ) supplementation. However, it is possible that different types of NO3 - supplementation evoke divergent physiological and performance adaptations to SIT. The purpose of this study was to compare the effects of 4 weeks SIT with and without concurrent dietary NO3 - supplementation administered as either NO3 - -rich beetroot juice (BR) or potassium NO3 - (KNO3 ). Thirty recreationally-active subjects completed a battery of exercise tests before and after a 4 week intervention in which they were allocated to one of three groups: 1) SIT undertaken without dietary NO3 - supplementation (SIT); 2) SIT accompanied by concurrent BR supplementation (SIT+BR); or 3) SIT accompanied by concurrent KNO3 supplementation (SIT+KNO3 )...
March 1, 2018: Journal of Applied Physiology
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