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https://www.readbyqxmd.com/read/28199402/short-or-long-rest-intervals-during-repeated-sprint-training-in-soccer
#1
F Marcello Iaia, Matteo Fiorenza, Luca Larghi, Giampietro Alberti, Grégoire P Millet, Olivier Girard
The present study compared the effects of two repeated-sprint training (RST) programs, differing in duration of the between-sprint rest intervals, on various soccer-related exercise performances. For 5 weeks during the competitive season, twenty-nine young trained male soccer players either replaced two of their habitual fitness conditioning sessions with RST characterized by short (5-15; n = 9) or long (5-30; n = 10) rest intervals, or served as control (n = 10). The 5-15 and 5-30 protocols consisted of 6 repetitions of 30-m (~5 s) straight-line sprints interspersed with 15 s or 30 s of passive recovery, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28195979/effects-of-high-intensity-interval-training-with-different-interval-durations-on-physical-performance-in-handball-players
#2
Jorge Viaño-Santasmarinas, Ezequiel Rey, Sergio Carballeira, Alexis Padrón-Cabo
The purpose of this study was to compare the effects of 2 high-intensity interval training protocols (HIIT) with different interval durations (short (SI) vs long (LI)), based on peak running velocity in 30-15 Intermittent Fitness Test (VIFT) in handball players. Eighteen highly trained players (age: 22.7±3.9 years; height: 181.5±6.6 cm; body mass: 84.7±14.1 kg) were randomly assigned to SI (2 sets of 22 intervals of 10-s runs at 95%VIFT) or LI (5 sets of 3 min intervals at 85% VIFT) group. The intervention program had to be carried out 2 times a week over 6 weeks...
February 8, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28194720/effects-of-repeated-sprint-training-in-hypoxia-on-sea-level-performance-a-meta-analysis
#3
REVIEW
Franck Brocherie, Olivier Girard, Raphaël Faiss, Grégoire P Millet
BACKGROUND: Repeated-sprint training in hypoxia (RSH) is a recent intervention regarding which numerous studies have reported effects on sea-level physical performance outcomes that are debated. No previous study has performed a meta-analysis of the effects of RSH. OBJECTIVE: We systematically reviewed the literature and meta-analyzed the effects of RSH versus repeated-sprint training in normoxia (RSN) on key components of sea-level physical performance, i.e., best and mean (all sprint) performance during repeated-sprint exercise and aerobic capacity (i...
February 13, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28177741/modified-sprint-interval-training-protocols-part-ii-psychological-responses
#4
Logan K Townsend, Hashim Islam, Emily Dunn, Mark Eys, Jennifer Robertson-Wilson, Tom J Hazell
Sprint-interval training (SIT) is a viable method to improve health and fitness. However, researchers have questioned the utility of SIT due to its strenuous nature. The current study aimed to determine if manipulating the sprint and recovery duration, while maintaining the 1:8 work to rest ratio, could uncover a more favourable SIT protocol. Nine healthy active males (23.3±3.0 y, 22.4±2.2 kg·m<sup>-2</sup>, 48.9±5.3 mLkg<sup>-1</sup>min<sup>-1</sup>) participated in three experimental running SIT sessions: (1) 30:240 (4 x 30 sec efforts, 240 sec recovery); (2) 15:120 (8 x 15 sec efforts, 120 sec recovery); (3) 5:40 (24 x 5 sec efforts, 40 sec recovery); and (4) a final behavioural choice follow-up session...
December 7, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28177740/modified-sprint-interval-training-protocols-part-i-physiological-responses
#5
Hashim Islam, Logan K Townsend, Tom J Hazell
Adaptations to sprint interval training (SIT) are observed with brief (≤15s) work bouts highlighting peak power generation as an important metabolic stimulus. This study examined the effects of manipulating SIT work bout and recovery period duration on energy expenditure (EE) during and post-exercise, as well as post-exercise fat oxidation rates. Nine active males completed a resting control session (CTRL) and three SIT sessions in randomized order: 1) 30:240 (4 x 30 s bouts, 240 s recovery); 2) 15:120 (8 x 15 s bouts, 120 s recovery); 3) 5:40 (24 x 5 s bouts, 40 s recovery)...
December 8, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28177737/peak-oxygen-uptake-in-a-sprint-interval-testing-protocol-vs-maximal-oxygen-uptake-in-an-incremental-testing-protocol-and-their-relationship-with-cross-country-mountain-biking-performance
#6
Rafał Hebisz, Paulina Hebisz, Marek Zatoń, Kamil Michalik
The literature finds that the exercise capacity of cyclists is typically assessed using incremental and endurance exercise tests. The aim of the present study was to confirm whether peak oxygen uptake (VO2peak) attained in a sprint interval testing protocol correlated with cycling performance and whether it corresponds to maximal oxygen uptake (VO2max) determined by an incremental testing protocol. A sample of 28 trained mountain bike cyclists executed three performance tests: a) incremental testing protocol (ITP) in which the participant cycled to volitional exhaustion, b) sprint interval testing protocol (SITP) composed of four 30-s maximal intensity cycling bouts interspersed with 90-s recovery periods, c) competition in a simulated MTB race...
December 12, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28177733/the-effects-of-block-training-on-pacing-during-20-km-cycling-time-trial
#7
Vitor Pereira Costa, Luiz Guilherme Antonacci Guglielmo, Carl David Paton
The aim of this study was to determine the effects of block training (BL) on pacing during a 20-km hilly cycling time trial (TT) in trained cyclists. Twenty male cyclists were separated into two groups: control and BL. The training of each cyclist was monitored during a period of 3 weeks. In the first week cyclists performed an overload period of seven consecutive days of high intensity interval training followed by two weeks of normal training. Cyclists performed one TT before intervention and two TT after seven and fourteen days at the end of training...
December 15, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28160084/neuromuscular-adaptations-to-sprint-interval-training-and-the-effect-of-mammalian-omega-3-fatty-acid-supplementation
#8
Evan J H Lewis, Frédéric Stucky, Peter W Radonic, Adam H Metherel, Thomas M S Wolever, Greg D Wells
PURPOSE: Sprint interval training (SIT) stimulates rapid metabolic adaptations within skeletal muscle but the nature of neuromuscular adaptions is unknown. Omega-3 polyunsaturated fatty acids (N-3 PUFA) are suggested to enhance neuromuscular adaptations to exercise. METHODS: We measured the neuromuscular adaptations to SIT (Study-1) and conducted a placebo-controlled randomized double blinded study to determine the effect of N-3 PUFA supplementation on neuromuscular adaptations to SIT (Study-2)...
February 3, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28154977/sex-differences-in-the-response-of-total-pyy-and-glp-1-to-moderate-intensity-continuous-and-sprint-interval-cycling-exercise
#9
Tom J Hazell, Logan K Townsend, Jillian R Hallworth, Jon Doan, Jennifer L Copeland
BACKGROUND: Exercise interventions are often less effective at improving body composition for females than males, potentially due to post-exercise hormonal responses that increase energy intake in females. Recently, sprint interval training was shown to effectively reduce body fat in females despite being relatively low during exercise energy expenditure. PURPOSE: To determine whether any sex difference in total PYY, GLP-1 or perceived hunger exists following moderate-intensity continuous exercise (MICT) and sprint interval exercise (SIT) METHODS: Twenty-one active participants (11 females) participated in three sessions in a randomized crossover design: (1) MICT, 30-min cycling at 65% VO2max; (2) SIT, 6 × 30 s "all-out" sprints with 4-min recovery periods; (3) control (CTRL; no exercise)...
February 2, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28148492/rest-interval-duration-does-not-influence-adaptations-in-acid-base-transport-proteins-following-10-weeks-of-sprint-interval-training-in-active-women
#10
Cian McGinley, David John Bishop
The removal of protons (H(+)) produced during intense exercise is important for skeletal muscle function, yet it remains unclear how best to structure exercise training to improve muscle pH regulation. We investigated whether 4 weeks of work-matched, sprint-interval training (SIT), performed 3 days per week, with either 1 min (Rest-1; n = 7) or 5 min (Rest-5; n = 7) of rest between sprints, influenced adaptations in acid/base transport protein content, non-bicarbonate muscle buffer capacity (βmin vitro), and exercise capacity in active women...
February 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28124388/effects-of-reduced-volume-of-sprint-interval-training-and-the-time-course-of-physiological-and-performance-adaptations
#11
T Yamagishi, J Babraj
This study sought to determine the time course of training adaptations to two different sprint interval training programmes with the same sprint: rest ratio (1:8) but different sprint duration. Nine participants (M: 7; F: 2) were assigned to 15-second training group (15TG) consisting of 4-6 × 15-second sprints interspersed with 2-minute recovery, whereas eight participants (M: 5; F: 3) were assigned to 30-second training group (30TG) consisting of 4-6 × 30 second sprints interspersed with 4-minute recovery...
January 26, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28121184/a-comparison-of-the-health-benefits-of-reduced-exertion-high-intensity-interval-training-rehit-and-moderate-intensity-walking-in-type-2-diabetes-patients
#12
RANDOMIZED CONTROLLED TRIAL
José S Ruffino, Preeyaphorn Songsorn, Malindi Haggett, Daniel Edmonds, Anthony M Robinson, Dylan Thompson, Niels B J Vollaard
Reduced-exertion high-intensity interval training (REHIT) is a genuinely time-efficient intervention that can improve aerobic capacity and insulin sensitivity in sedentary individuals. The present study compared the effects of REHIT and moderate-intensity walking on health markers in patients with type 2 diabetes (T2D) in a counter-balanced crossover study. Sixteen men with T2D (mean ± SD age: 55 ± 5 years, body mass index: 30.6 ± 2.8 kg·m(-2), maximal aerobic capacity: 27 ± 4 mL·kg(-1)·min(-1)) completed 8 weeks of REHIT (three 10-min low-intensity cycling sessions/week with two "all-out" 10-20-s sprints) and 8 weeks of moderate-intensity walking (five 30-min sessions/week at an intensity corresponding to 40%-55% of heart-rate reserve), with a 2-month wash-out period between interventions...
February 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28119874/performance-and-energy-systems-contributions-during-upper-body-sprint-interval-exercise
#13
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/28118678/effect-of-sex-on-the-acute-skeletal-muscle-response-to-sprint-interval-exercise
#14
Lauren E Skelly, Jenna B Gillen, Martin J MacInnis, Brian J Martin, Adeel Safdar, Mahmood Akhtar, Maureen J MacDonald, Mark A Tarnopolsky, Martin J Gibala
What is the central question of this study? Are there sex-based differences in the acute skeletal muscle response to sprint interval training (SIT)? What is the main finding and its importance? In response to a SIT protocol that involved three 20 s bouts of 'all-out' cycling, the expression of multiple genes associated with mitochondrial biogenesis, metabolic control and structural remodelling was largely similar between men and women matched for fitness. Our findings cannot explain previous reports of sex-based differences in the adaptive response to SIT and suggest that the mechanistic basis for these differences remains to be elucidated...
January 24, 2017: Experimental Physiology
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
#15
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/28079707/effect-of-number-of-sprints-in-a-sit-session-on-change-in-vo2max-a-meta-analysis
#16
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
https://www.readbyqxmd.com/read/28009784/brief-intense-stair-climbing-improves-cardiorespiratory-fitness
#17
Mary K Allison, Jessica H Baglole, Brian J Martin, Martin J Macinnis, Brendon J Gurd, Martin J Gibala
PURPOSE: Sprint interval training (SIT) is a time-efficient strategy to improve cardiorespiratory fitness (CRF); however, most protocols have been studied in laboratory settings and require specialized equipment. We investigated the efficacy of brief intense stair climbing as a practical model of SIT to improve CRF. METHODS: Two separate studies, each consisting of an acute and chronic phase, were conducted in a total of 31 sedentary women (age = 24 ± 10 yr, body mass index = 23 ± 4 kg·m)...
February 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27991484/relationship-between-the-handball-specific-complex-test-and-intermittent-field-test-performance-in-elite-professional-handball-players
#18
René Schwesig, Souhail Hermassi, Birgit Hoffmeyer, Lars Irlenbusch, Georg Fieseler, Frank Noack, Karl S Delank, Tim J Gabbett, Mohamed S Chelly
BACKGROUND: We investigated the relationship between the handball complex-test (HBCT) and two selected field tests in elite handball players. METHODS: Twenty one handball players (age: 25.2 ± 5.1 years) from the First Professional German League completed; the HBCT performed twice, total distance (TD) covered in the Yo-Yo Intermittent Recovery Test and repeated shuttle sprint ability (RSA) (6 x (15 + 15 m)) starting every 20 s. RSA results were evaluated in three ways: best time (RSAbest), total time (RSATT) and decrement (RSAdec)...
December 16, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27941491/low-intensity-sprint-training-with-blood-flow-restriction-improves-100-m-dash
#19
M Behringer, D Behlau, J Montag, M McCourt, J Mester
PURPOSE: We investigated the effects of practical blood flow restriction (pBFR) of leg muscles during sprint training on the 100 m dash time in well-trained sport students. METHODS: Participants performed 6x100 m sprints at 60-70% of their maximal 100 m sprinting speed twice a week for 6 weeks, either with (IG; n=12) or without pBFR (CG; n=12). RESULTS: The 100 m dash time significantly decreased more in the IG (-0.38±0.24 s) than in the CG (-0...
November 25, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27936084/inter-individual-variability-in-the-adaptive-responses-to-endurance-and-sprint-interval-training-a-randomized-crossover-study
#20
Jacob T Bonafiglia, Mario P Rotundo, Jonathan P Whittall, Trisha D Scribbans, Ryan B Graham, Brendon J Gurd
The current study examined the adaptive response to both endurance (END) and sprint interval training (SIT) in a group of twenty-one recreationally active adults. All participants completed three weeks (four days/ week) of both END (30 minutes at ~65% VO2peak work rate (WR) and SIT (eight, 20-second intervals at ~170% VO2peak WR separated by 10 seconds of active rest) following a randomized crossover study design with a three-month washout period between training interventions. While a main effect of training was observed for VO2peak, lactate threshold, and submaximal heart rate (HR), considerable variability was observed in the individual responses to both END and SIT...
2016: PloS One
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