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High-Intensity Interval Training

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https://www.readbyqxmd.com/read/28633487/high-intensity-interval-training-hiit-improves-physical-performance-and-frailty-in-aged-mice
#1
Kenneth Ladd Seldeen, Ginger Lasky, Merced Maria Leiker, Manhui Pang, Kirkwood Ely Personius, Bruce Robert Troen
Sarcopenia and frailty are highly prevalent in older individuals, increasing the risk of disability and loss of independence. High intensity interval training (HIIT) may provide a robust intervention for both sarcopenia and frailty by achieving both strength and endurance benefits with lower time commitments than other exercise regimens. To better understand the impacts of HIIT during aging, we compared 24-month-old C57BL/6J sedentary mice with those that were administered 10-minute uphill treadmill HIIT sessions three times per week over 16 weeks...
June 17, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28633001/impact-of-4-weeks-of-interval-training-on-resting-metabolic-rate-fitness-and-health-related-outcomes
#2
Matthew M Schubert, Holly E Clarke, Rebekah F Seay, Katie K Spain
PURPOSE: Resting metabolic rate (RMR) and substrate oxidation (RER) are important indicators of health. The effects of interval training on RMR have not been thoroughly investigated, which was the purpose of the present study. METHODS: Thirty men and women (mean ± SD age and VO2max: 28.8 ± 7.6 yrs and 33.0 ± 8.3 mL∙kg-1∙min-1) completed 4 weeks of Wingate-based sprint interval training (SIT), repeated 1-minute high-intensity intervals (HIIT), or served as controls (CON)...
June 20, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28630583/acute-modification-of-cardiac-autonomic-function-of-high-intensity-interval-training-in-collegiate-male-soccer-players-with-different-chronotype-a-cross-over-study
#3
Matteo Bonato, Luca Agnello, Letizia Galasso, Angela Montaruli, Eliana Roveda, Giampiero Merati, Antonio La Torre, Jacopo A Vitale
The purpose of this study was to evaluate if the time of the day (8.00 a.m. vs 8.00 p.m.) and chronotype could influence autonomic cardiac control in soccer players in relation to an acute session of high-intensity interval training. The morningness-eveningness questionnaire was administered to recruit Morning-type and Evening-type collegiate male soccer players. Therefore, 24 players (12 Morning-types and 12 Evening-types) were randomly assigned, to either morning (n = 12; age 23 ± 3 years; height 1.75 ± 0...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28630575/acute-and-post-exercise-physiological-responses-to-high-intensity-interval-training-in-endurance-and-sprint-athletes
#4
Lukas Cipryan, Gerhard Tschakert, Peter Hofmann
The purpose of the presented study was to compare acute and post-exercise differences in cardiorespiratory, metabolic, cardiac autonomic, inflammatory and muscle damage responses to high-intensity interval exercise (HIIT) between endurance and sprint athletes. The study group consisted of sixteen highly-trained males (age 22.1 ± 2.5 years) participating in endurance (n = 8) or sprint (n = 8) sporting events. All the participants underwent three exercise sessions: short HIIT (work interval duration 30s), long HIIT (3min) and constant load exercise (CE)...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28628064/exercise-training-reduces-intrathoracic-fat-regardless-of-defective-glucose-tolerance
#5
Sanna M Honkala, Kumail K Motiani, Jari-Joonas Eskelinen, Anna Savolainen, Virva Saunavaara, Kirsi A Virtanen, Eliisa Löyttyniemi, Jukka Kapanen, Juhani Knuuti, Kari K Kalliokoski, Jarna C Hannukainen
PURPOSE: Epicardial (EAT) and pericardial (PAT) fat masses and myocardial triglyceride content (MTC) are enlarged in obesity and insulin resistance. We studied whether the high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) similarly decrease ectopic fat in and around the heart and whether the decrease is similar in healthy subjects and subjects with defective glucose tolerance (DGT). METHODS: A total of 28 healthy men (body mass index = 20...
July 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28620311/physiological-adaptations-to-hypoxic-vs-normoxic-training-during-intermittent-living-high
#6
Stefan De Smet, Paul van Herpt, Gommaar D'Hulst, Ruud Van Thienen, Marc Van Leemputte, Peter Hespel
In the setting of "living high," it is unclear whether high-intensity interval training (HIIT) should be performed "low" or "high" to stimulate muscular and performance adaptations. Therefore, 10 physically active males participated in a 5-week "live high-train low or high" program (TR), whilst eight subjects were not engaged in any altitude or training intervention (CON). Five days per week (~15.5 h per day), TR was exposed to normobaric hypoxia simulating progressively increasing altitude of ~2,000-3,250 m...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28615010/internet-based-perioperative-exercise-program-in-patients-with-barrett-s-carcinoma-scheduled-for-esophagectomy-ipep-study-a-prospective-randomized-controlled-trial
#7
Daniel Pfirrmann, Suzan Tug, Oana Brosteanu, Matthias Mehdorn, Martin Busse, Peter P Grimminger, Florian Lordick, Torben Glatz, Jens Hoeppner, Hauke Lang, Perikles Simon, Ines Gockel
BACKGROUND: Patients undergoing surgery for esophageal cancer have a high risk for postoperative deterioration of lung function and pulmonary complications. This is partly due to one-lung ventilation during thoracotomy. This often accounts for prolonged stay on intensive care units, delayed postoperative reconvalescence and reduced quality of life. Socioeconomic disadvantages can result from these problems. Physical preconditioning has become a crucial leverage to optimize fitness and lung function in patients scheduled for esophagectomy, in particular during the time period of neoadjuvant therapy...
June 14, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28612219/prospective-phase-ii-study-evaluating-the-efficacy-of-swallow-ability-screening-tests-and-pneumonia-prevention-using-a-team-approach-for-elderly-patients-with-gastric-cancer
#8
Yuichiro Miki, Rie Makuuchi, Shinsaku Honda, Masanori Tokunaga, Yutaka Tanizawa, Etsuro Bando, Taiichi Kawamura, Takashi Yurikusa, Akira Tanuma, Masanori Terashima
BACKGROUND: Aging partly impairs swallowing function, which is considered a risk factor for postoperative pneumonia (PP). We evaluated the efficacy of a new team-based strategy to reduce the incidence of PP in elderly patients with gastric cancer. METHODS: This single-center, prospective phase II study included elderly patients (≥75 years old) with gastric cancer undergoing gastric surgery. The primary endpoint was the incidence of Clavien-Dindo grade II or higher PP...
June 13, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28611681/dose-response-of-high-intensity-training-hit-on-atheroprotective-mirna-126-levels
#9
Boris Schmitz, Katrin Schelleckes, Johanna Nedele, Lothar Thorwesten, Andreas Klose, Malte Lenders, Michael Krüger, Eva Brand, Stefan-Martin Brand
Aim: MicroRNA-126 (miR-126) exerts beneficial effects on vascular integrity, angiogenesis, and atherosclerotic plaque stability. The purpose of this investigation was to analyze the dose-response relationship of high-intensity interval training (HIIT) on miR-126-3p and -5p levels. Methods: Sixty-one moderately trained individuals (females = 31 [50.8%]; 22.0 ± 1.84 years) were consecutively recruited and allocated into three matched groups using exercise capacity. During a 4-week intervention a HIIT group performed three exercise sessions/week of 4 × 30 s at maximum speed (all-out), a progressive HIIT (proHIIT) group performed three exercise sessions/week of 4 × 30 s at maximum speed (all-out) with one extra session every week (up to 7 × 30 s) and a low-intensity training (LIT) control group performed three exercise sessions/week for 25 min <75% of maximum heart rate...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28605609/effects-of-macro-and-micro-nutrients-on-exercise-induced-hepcidin-response-in-highly-trained-endurance-athletes
#10
Dylan Timothy Dahlquist, Trent Stellingwerff, Brad Pendleton Dieter, Donald C McKenzie, Michael S Koehle
Iron deficiency (ID) has ergolytic effects on athletic performance. Exercise induced inflammation impedes iron absorption in the digestive tract by up-regulating the expression of the iron regulatory protein, hepcidin. Limited research indicates the potential of specific macro- and micro- nutrients on blunting exercise induced hepcidin. Therefore, we investigated the effects of post-exercise supplementation with protein and carbohydrate (CHO) and vitamins D3 and K2 on the post-exercise hepcidin response. Ten highly-trained male cyclists (age: 26...
June 12, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28597102/effects-of-progressive-resistance-training-and-weight-loss-versus-weight-loss-alone-on-inflammatory-and-endothelial-biomarkers-in-older-adults-with-type-2-diabetes
#11
Eliza G Miller, Parneet Sethi, Caryl A Nowson, David W Dunstan, Robin M Daly
PURPOSE: Type 2 diabetes has been associated with an increase in inflammatory and endothelial biomarkers, which are associated with an increased risk of cardiovascular disease and diabetes-related complications. This study examined the effects of high-intensity progressive resistance training (PRT) with moderate weight loss (WL) versus WL alone on inflammatory and endothelial biomarkers in older overweight adults with type 2 diabetes. METHODS: This was a 12-month randomized controlled trial in which 36 inactive, overweight adults aged 60-80 years with poorly controlled type 2 diabetes were randomized to 6 months of supervised PRT + WL or stretching (sham) exercise plus WL followed by 6 months of home-training without dietary modification...
June 8, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28594711/effects-of-repeated-yearly-exposure-to-exercise-training-on-blood-pressure-and-metabolic-syndrome-evolution
#12
Felix Morales-Palomo, Miguel Ramirez-Jimenez, Juan F Ortega, Pedro L Lopez-Galindo, Juan Fernandez-Martin, Ricardo Mora-Rodriguez
OBJECTIVE: To study if repeated yearly training programs consolidate the transient blood pressure (BP) improvements of one exercise program into durable adaptations. METHODS: Obese middle-age individuals with metabolic syndrome (MetS) underwent high-intensity aerobic interval training during 16 weeks (November to mid-March) in 3 consecutive years [training group (TRAIN); N = 23]. Evolution of MetS components was compared with a matched-group that remained sedentary [control group (CONT); N = 26]...
June 7, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28588097/high-intensity-interval-training-and-calorie-restriction-promote-remodeling-of-glucose-and-lipid-metabolism-in-diet-induced-obesity
#13
Rachel A H Davis, Jacob E Halbrooks, Emily Watkins, Gordon Fisher, Gary R Hunter, Tim R Nagy, Eric P Plaisance
Calorie restriction (CR) decreases adiposity, but the magnitude and defense of weight loss is less than predicted due to reductions in total daily energy expenditure (TEE). The purpose of the current investigation was to determine if high-intensity interval training (HIIT) would increase markers of sympathetic activation in white adipose tissue (WAT) and rescue CR-mediated reductions in EE to a greater extent than moderate-intensity aerobic exercise training (MIT). Thirty-two 5-wk old male C57BL/6J mice were placed on ad libitum HFD for 11 weeks followed by randomization to one of four groups (n = 8 per group) for an additional 15 weeks: 1) CON (remain on HFD); 2) CR (25% lower energy intake); 3) CR+HIIT (25% energy deficit created by 12...
June 6, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28580854/changes-in-lower-limb-muscle-function-and-muscle-mass-following-exercise-based-interventions-in-patients-with-chronic-obstructive-pulmonary-disease-a-review-of-the-english-language-literature
#14
Jana De Brandt, Martijn A Spruit, Dominique Hansen, Frits Me Franssen, Wim Derave, Maurice Jh Sillen, Chris Burtin
Chronic obstructive pulmonary disease (COPD) patients often experience lower limb muscle dysfunction and wasting. Exercise-based training has potential to improve muscle function and mass, but literature on this topic is extensive and heterogeneous including numerous interventions and outcome measures. This review uses a detailed systematic approach to investigate the effect of this wide range of exercise-based interventions on muscle function and mass. PUBMED and PEDro databases were searched. In all, 70 studies ( n = 2504 COPD patients) that implemented an exercise-based intervention and reported muscle strength, endurance, or mass in clinically stable COPD patients were critically appraised...
January 1, 2017: Chronic Respiratory Disease
https://www.readbyqxmd.com/read/28578612/the-effect-of-progressive-resistance-training-on-aerobic-fitness-and-strength-in-adults-with-coronary-heart-disease-a-systematic-review-and-meta-analysis-of-randomised-controlled-trials
#15
Matthew Hollings, Yorgi Mavros, Jonathan Freeston, Maria Fiatarone Singh
Design We aimed to evaluate the effect of progressive resistance training on cardiorespiratory fitness and muscular strength in coronary heart disease, when compared to control or aerobic training, and when combined with aerobic training. Secondary aims were to evaluate the safety and efficacy of progressive resistance training on other physiological and clinical outcomes. Methods and results Electronic databases were searched from inception until July 2016. Designs included progressive resistance training vs control, progressive resistance training vs aerobic training, and combined training vs aerobic training...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28576436/cta-in-acute-stroke-short-intensive-training-intervention-is-highly-effective-in-improving-radiologists-performance
#16
E A Cora, G A Ford, D Flynn, P Gonsalves, P White
AIM: To determine whether focussed radiology training in reporting stroke computed tomography angiography (CTA) improved diagnostic performance of general radiology specialty trainees staffing regional on call rotas. MATERIALS AND METHODS: A validated case archive (VCA) consisting of 50 hyperacute stroke CTA cases was developed for a full day course on CTA interpretation. Training days were organised ensuring all local trainees had a chance to attend. The rate of major and minor amendments by neuroradiology consultants were reviewed in 252 on-call radiology trainee reports...
May 30, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28570494/endurance-running-training-individually-guided-by-hrv-in-untrained-women
#17
Danilo F da Silva, Zachary M Ferraro, Kristi B Adamo, Fabiana A Machado
The aim of this study was to analyze the effects of HRV-guided training compared to a standardized prescription on i) time to complete 5-km running performance (t5km), ii) peak treadmill running speed (Vpeak) and its time limit (tlim at Vpeak), and iii) autonomic cardiac modulation (i.e., parasympathetic activity and recovery) in untrained women. Additionally, we correlated changes in t5km with changes in Vpeak, tlim at Vpeak and autonomic cardiac modulation. Thirty-six untrained women were divided into a HRV-guided training group (HRVG) and a control group (CG)...
May 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28570491/effects-of-a-6-week-upper-extremity-low-volume-high-intensity-interval-training-on-oxygen-uptake-peak-power-output-and-total-exercise-time
#18
Nicole Pinto, James W Salassi, Ayla Donlin, Jan Schroeder, Ralph Rozenek
The purpose of this study was to compare the effects of upper extremity (UE) high intensity interval training (HIIT) to UE continuous training (CT) when training at a similar intensity. 20 participants (mean age = 23 ± 3 yrs) were randomly assigned to either a HIIT (n = 10) or CT (n = 10) group. Participants completed a graded exercise test utilizing arm cranking prior to and following 6 wks (2 sessions · wk-1) of UE training. During sessions, HIIT performed 10 repetitions of 60 s of work at 92.3 ± 1.0% of the arm HRpeak (%aHRpeak) and 60 s of passive recovery (%aHRpeak = 73...
May 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28567669/cerebral-oxygenation-during-cortical-activation-the-differential-influence-of-three-exercise-training-modalities-a-randomized-controlled-trial
#19
Carla Coetsee, Elmarie Terblanche
PURPOSE: To determine if a cerebral oxygenation response during cortical activation is influenced by exercise training mode. METHODS: Sixty-seven individuals (55-75 years old) volunteered for this 16-week intervention study. Participants were randomized into a resistance training (RT) group (n = 22), high-intensity interval training (HIIT) group (n = 13), moderate continuous training (MCT) group (n = 13) and a control (CON) group (n = 19). Near-infrared spectroscopy was used to measure cerebral oxygenation during the Stroop task...
May 31, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28567668/the-impact-of-acute-high-intensity-interval-exercise-on-biomarkers-of-cardiovascular-health-in-type-2-diabetes
#20
Monique E Francois, Jonathan P Little
PURPOSE: High-intensity interval training (HIIT) interventions improve cardiovascular health, yet the acute effects on circulating and functional biomarkers of cardiovascular function are unclear in individuals with type 2 diabetes (T2D). To explore this, we conducted two investigations to examine the acute response to HIIT in individuals with T2D. METHODS: Study 1 measured blood pressure, endothelial-dependent dilation, circulating measures of endothelial activation, and troponin T, 30 min and 2 h after HIIT (7 × 1-min intervals) in T2D (n = 8) and age-matched normoglycemic controls (CTL; n = 8)...
May 31, 2017: European Journal of Applied Physiology
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