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Sprint interval training

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https://www.readbyqxmd.com/read/28303909/sprint-interval-training-induces-a-sexual-dimorphism-but-does-not-improve-peak-bone-mass-in-young-and-healthy-mice
#1
Kathrin Koenen, Isabell Knepper, Madlen Klodt, Anja Osterberg, Ioannis Stratos, Thomas Mittlmeier, Tina Histing, Michael D Menger, Brigitte Vollmar, Sven Bruhn, Brigitte Müller-Hilke
Elevated peak bone mass in early adulthood reduces the risk for osteoporotic fractures at old age. As sports participation has been correlated with elevated peak bone masses, we aimed to establish a training program that would efficiently stimulate bone accrual in healthy young mice. We combined voluntary treadmill running with sprint interval training modalities that were tailored to the individual performance limits and were of either high or intermediate intensity. Adolescent male and female STR/ort mice underwent 8 weeks of training before the hind legs were analyzed for cortical and trabecular bone parameters and biomechanical strength...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303248/fitness-effects-of-10-month-frequent-low-volume-ball-game-training-or-interval-running-for-8-10-year-old-school-children
#2
Malte Nejst Larsen, Claus Malta Nielsen, Christina Ørntoft, Morten Bredsgaard Randers, Eva Wulff Helge, Mads Madsen, Vibeke Manniche, Lone Hansen, Peter Riis Hansen, Jens Bangsbo, Peter Krustrup
We investigated the exercise intensity and fitness effects of frequent school-based low-volume high-intensity training for 10 months in 8-10-year-old children. 239 Danish 3rd-grade school children from four schools were cluster-randomised into a control group (CON, n = 116) or two training groups performing either 5 × 12 min/wk small-sided football plus other ball games (SSG, n = 62) or interval running (IR, n = 61). Whole-body DXA scans, flamingo balance, standing long-jump, 20 m sprint, and Yo-Yo IR1 children's tests (YYIR1C) were performed before and after the intervention...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28295686/increased-insulin-stimulated-glucose-uptake-in-both-leg-and-arm-muscles-after-sprint-interval-and-moderate-intensity-training-in-subjects-with-type-2-diabetes-or-prediabetes
#3
Tanja J Sjöros, Marja A Heiskanen, Kumail K Motiani, Eliisa Löyttyniemi, Jari-Joonas Eskelinen, Kirsi A Virtanen, Nina J Savisto, Olof Solin, Jarna C Hannukainen, Kari K Kalliokoski
We investigated the effects of sprint interval (SIT) and moderate intensity continuous training (MICT) on glucose uptake (GU) during hyperinsulinemic euglycemic clamp and fatty acid uptake (FAU) at fasting state in thigh and arm muscles in subjects with type 2 diabetes (T2D) or prediabetes. Twenty-six patients (age 49, SD 4; 10 women) were randomly assigned into two groups: SIT (n=13), and MICT (n=13). The exercise in the SIT group consisted of 4-6 x 30 s of all-out cycling with 4 min recovery and in the MICT group 40-60 min cycling at 60% of VO2peak ...
March 13, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28294700/food-intake-and-appetite-following-school-based-high-intensity-interval-training-in-9-11-year-old-children
#4
Anna Morris, Robert Cramb, Caroline J Dodd-Reynolds
Using a randomised cross-over design, free-living lunch intake and subjective appetite were examined in 10 children (9.8 ± 0.6 years) following high-intensity interval training (HIIT) versus a control sedentary (SED) period, within a school setting. The 22-min HIIT took place during a regular PE lesson and consisted of two rounds of 4 × 30 s sprints. Foods were offered at a regular school lunch immediately following HIIT and SED and were matched between conditions. All food was covertly weighed before and after the meal...
March 15, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28286674/the-effect-of-exercise-intensity-on-total-pyy-and-glp-1-in-healthy-females-a-pilot-study
#5
Jillian R Hallworth, Jennifer L Copeland, Jon Doan, Tom J Hazell
We compared the acute response of anorexigenic signals (total PYY and GLP-1) in response to submaximal and supramaximal exercise. Nine females completed three sessions: (1) moderate-intensity continuous training (MICT; 30 min; 65%  VO2max); (2) sprint interval training (SIT; 6 × 30 sec "all-out" cycling sprints with 4 min recovery); or (3) control (CTRL; no exercise). PYY and GLP-1 were measured via blood samples drawn before, immediately after, and 90 min after exercise. Perceptions of hunger were rated using a visual analogue scale at all blood sampling time points...
2017: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/28281651/sprint-interval-but-not-continuous-exercise-increases-pgc-1%C3%AE-protein-content-and-p53-phosphorylation-in-nuclear-fractions-of-human-skeletal-muscle
#6
Cesare Granata, Rodrigo S F Oliveira, Jonathan P Little, Kathrin Renner, David J Bishop
Sprint interval training has been reported to induce similar or greater mitochondrial adaptations to continuous training. However, there is limited knowledge about the effects of different exercise types on the early molecular events regulating mitochondrial biogenesis. Therefore, we compared the effects of continuous and sprint interval exercise on key regulatory proteins linked to mitochondrial biogenesis in subcellular fractions of human skeletal muscle. Nineteen men, performed either 24 min of moderate-intensity continuous cycling at 63% of WPeak (CE), or 4 × 30-s "all-out" cycling sprints (SIE)...
March 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28277402/a-multifactorial-criteria-based-progressive-algorithm-for-hamstring-injury-treatment
#7
Jurdan Mendiguchia, Enrique Martinez-Ruiz, Pascal Edouard, Jean-Benoît Morin, Francisco Martinez-Martinez, Fernando Idoate, Alberto Mendez-Villanueva
INTRODUCTION: Given the prevalence of hamstring injuries in football, a rehabilitation program that effectively promotes muscle tissue repair and functional recovery is paramount to minimize re-injury risk and optimize player performance and availability. PURPOSE: To assess the concurrent effectiveness of administering an individualized and multifactorial criteria-based algorithm (RA) on hamstring injury rehabilitation in comparison to employing a general rehabilitation protocol (RP)...
March 8, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28251399/change-in-maximal-fat-oxidation-in-response-to-different-regimes-of-periodized-high-intensity-interval-training-hiit
#8
Todd A Astorino, Ross M Edmunds, Amy Clark, Rachael Gallant, Leesa King, Gina M Ordille, Brendyn Heath, Matthew Montell, Jason Bandong
PURPOSE: Increased capacity for fat oxidation (FatOx) is demonstrated in response to chronic endurance training as well as high-intensity interval training (HIIT). This study examined changes in maximal fat oxidation (MFO) in response to 20 sessions of periodized HIIT in an attempt to identify if various regimes of HIIT similarly augment capacity for FatOx. METHODS: Thirty-nine habitually active men and women (mean age and VO2max = 22.5 ± 4.4 year and 40...
March 1, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28241030/effects-of-upper-body-sprint-interval-training-on-strength-and-endurance-capacities-in-female-cross-country-skiers
#9
Kristine Vandbakk, Boye Welde, Andrea Hovstein Kruken, Julia Baumgart, Gertjan Ettema, Trine Karlsen, Øyvind Sandbakk
This study compared the effects of adding upper-body sprint-intervals or continuous double poling endurance training to the normal training on maximal upper-body strength and endurance capacity in female cross-country skiers. In total, 17 female skiers (age: 18.1±0.8yr, body mass: 60±7 kg, maximal oxygen uptake (VO2max): 3.30±0.37 L.min-1) performed an 8-week training intervention. Here, either two weekly sessions of six to eight 30-s maximal upper-body double poling sprint-intervals (SIG, n = 8) or 45-75 min of continuous low-to-moderate intensity double poling on roller skis (CG, n = 9) were added to their training...
2017: PloS One
https://www.readbyqxmd.com/read/28199402/short-or-long-rest-intervals-during-repeated-sprint-training-in-soccer
#10
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
#11
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
#12
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
#13
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 because of 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 (age, 23.3 ± 3.0 years; body mass index, 22.4 ± 2.2 kg·m(-2); maximal oxygen consumption, 48.9 ± 5.3 mL·kg(-1)·min(-1)) participated in 3 experimental running SIT sessions: (i) 30:240 (4 × 30-s efforts, 240-s recovery), (ii) 15:120 (8 × 15-s efforts, 120-s recovery), (iii) 5:40 (24 × 5-s efforts, 40-s recovery), and (iv) 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
#14
Hashim Islam, Logan K Townsend, Tom J Hazell
Adaptations to sprint interval training (SIT) are observed with brief (≤15-s) 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 postexercise, as well as postexercise fat oxidation rates. Nine active males completed a resting control session (CTRL) and 3 SIT sessions in randomized order: (i) 30:240 (4 × 30-s bouts, 240-s recovery); (ii) 15:120 (8 × 15-s bouts, 120-s recovery); (3) 5:40 (24 × 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
#15
Rafał Hebisz, Paulina Hebisz, Marek Zatoń, Kamil Michalik
In the literature, 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 (V̇O2peak) attained in a sprint interval testing protocol correlates with cycling performance, and whether it corresponds to maximal oxygen uptake (V̇O2max) determined by an incremental testing protocol. A sample of 28 trained mountain bike cyclists executed 3 performance tests: (i) incremental testing protocol (ITP) in which the participant cycled to volitional exhaustion, (ii) sprint interval testing protocol (SITP) composed of four 30 s maximal intensity cycling bouts interspersed with 90 s recovery periods, (iii) competition in a simulated mountain biking 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
#16
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 2 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 7 consecutive days of high-intensity interval training followed by 2 weeks of normal training. Cyclists performed 1 TT before intervention and 2 TT after 7 and 14 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
#17
RANDOMIZED CONTROLLED TRIAL
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)...
March 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
#18
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)...
March 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
#19
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
#20
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
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