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high intensity interval exercise

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https://www.readbyqxmd.com/read/28912129/the-efficacy-of-unsupervised-home-based-exercise-regimens-in-comparison-to-supervised-laboratory-based-exercise-training-upon-cardio-respiratory-health-facets
#1
James Blackwell, Philip J Atherton, Kenneth Smith, Brett Doleman, John P Williams, Jonathan N Lund, Bethan E Phillips
Supervised high-intensity interval training (HIIT) can rapidly improve cardiorespiratory fitness (CRF). However, the effectiveness of time-efficient unsupervised home-based interventions is unknown. Eighteen volunteers completed either: laboratory-HIIT (L-HIIT); home-HIIT (H-HIIT) or home-isometric hand-grip training (H-IHGT). CRF improved significantly in L-HIIT and H-HIIT groups, with blood pressure improvements in the H-IHGT group only. H-HIIT offers a practical, time-efficient exercise mode to improve CRF, away from the laboratory environment...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28904878/the-effects-of-different-physical-activities-on-atrial-fibrillation-in-patients-with-hypertension-and-chronic-kidney-disease
#2
Márcio Galindo Kiuchi, Shaojie Chen, Neil Alexander Hoye
BACKGROUND: Atrial fibrillation (AF) is highly common, and is most frequently observed in individuals with hypertension and structural cardiac disease. Sympathetic hyperactivity plays a fundamental role in the progression, maintenance and aggravation of arrhythmia. Endurance exercise training clearly lowers sympathetic activity in sympathoexcitatory disease states, and is well-tolerated by patients with chronic kidney disease (CKD). METHODS: We assessed 50 CKD patients with hypertension...
September 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28898133/differential-impact-of-treadmill-training-on-stroke-induced-neurological-disorders
#3
Rasoul Rezaei, Maryam Nourshahi, Fariba Khodagholi, Abbas Haghparast, Sanaz Nasoohi, Mohammadreza Bigdeli, Ghorbangol Ashabi
OBJECTIVE: Physical exercise contributes to improving stability against nerve injury caused by ischaemic stroke. Here we aimed to preliminarily investigate the effects of continuous endurance training (CET) and high-intensity interval training (HIT) on stroke-associated anxiety, locomotion, neurological assessments and P70S6 Kinase (P70S6K) activation as well. To do this, rats were trained according to HIT and CET protocols for 2 months prior to being subject to middle cerebral artery occlusion surgery...
September 12, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28894645/re-examination-of-the-contribution-of-substrates-to-energy-expenditure-during-high-intensity-intermittent-exercise-in-endurance-athletes
#4
Zübeyde Aslankeser, Şükrü Serdar Balcı
BACKGROUND: It has been believed that the contribution of fat oxidation to total energy expenditure is becoming negligible at higher exercise intensities (about 85% VO2max). The aim of the present study was to examine the changes in substrate oxidation during high-intensity interval exercise in young adult men. METHODS: A total of 18 healthy well-trained (aged 19.60 ± 0.54 years, BMI = 22.19 ± 0.64 kg/m(2), n = 10) and untrained (aged 20.25 ± 0.41 years, BMI = 22...
2017: PeerJ
https://www.readbyqxmd.com/read/28893641/high-intensity-interval-training-has-beneficial-effects-on-cardiac-remodeling-through-local-renin-angiotensin-system-modulation-in-mice-fed-high-fat-or-high-fructose-diets
#5
Guilherme de Oliveira Sá, Vívian Dos Santos Neves, Shyrlei R de Oliveira Fraga, Vanessa Souza-Mello, Sandra Barbosa-da-Silva
AIMS: HIIT (high-intensity interval training) has the potential to reduce cardiometabolic risk factors, but the effects on cardiac remodeling and local RAS (renin-angiotensin system) in mice fed high-fat or high-fructose diets still need to be fully addressed. MAIN METHODS: Sixty male C57BL/6 mice (12weeks old) were randomly divided into three groups, control (C), High-fat (HF), or High-fructose diet (HRU) and were monitored for eight weeks before being submitted to the HIIT...
September 8, 2017: Life Sciences
https://www.readbyqxmd.com/read/28891743/high-intensity-cardiorespiratory-and-strength-exercises-reduced-emotional-distress-and-fatigue-in-patients-with-axial-spondyloarthritis-a-randomized-controlled-pilot-study
#6
S H Sveaas, I J Berg, C Fongen, S A Provan, H Dagfinrud
OBJECTIVE: To investigate the effect of high-intensity exercise on emotional distress, fatigue, and ability to do a full day's activities in patients with axial spondyloarthritis (axSpA). METHOD: A total of 28 physically inactive axSpA patients were randomized to either an exercise group (EG), which performed 12 weeks of cardiorespiratory and strength exercises, or a control group (CG), which received treatment as usual. The outcomes reported in this paper are secondary outcomes in the trial and included emotional distress (General Health Questionnaire-12, 0-36, 36 = worst), fatigue [numeric rating scale (NRS), 0-10, 10 = worst], and ability to do a full day's activities (NRS, 0-10, 10 = worst)...
September 11, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28879617/high-but-not-moderate-intensity-endurance-training-increases-pain-tolerance-a-randomised-trial
#7
Thomas J O'Leary, Johnny Collett, Ken Howells, Martyn G Morris
PURPOSE: To examine the effect of high-intensity interval training (HIIT) compared to volume-matched moderate-intensity continuous training (CONT) on muscle pain tolerance and high-intensity exercise tolerance. METHODS: Twenty healthy adults were randomly assigned (1:1) to either 6 weeks of HIIT [6-8 × 5 min at halfway between lactate threshold and maximal oxygen uptake (50%Δ)] or volume-matched CONT (~60-80 min at 90% lactate threshold) on a cycle ergometer...
September 6, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28859545/acute-cardiorespiratory-perceptual-and-enjoyment-responses-to%C3%A2-high-intensity-interval-exercise-in-adolescents
#8
Adam A Malik, Craig A Williams, Bert Bond, Kathryn L Weston, Alan R Barker
This study aimed to examine adolescents' acute cardiorespiratory and perceptual responses during high-intensity interval exercise (HIIE) and enjoyment responses following HIIE and work-matched continuous moderate intensity exercise (CMIE). Fifty-four 12- to 15-year olds (27 boys) completed 8 × 1-min cycling at 90% peak power with 75-s recovery (HIIE) and at 90% of the gas exchange threshold (CMIE). Absolute oxygen uptake ([Formula: see text]), percentage of maximal [Formula: see text] (%[Formula: see text]), heart rate (HR), percentage of maximal HR (%HRmax) and ratings of perceived exertion (RPE) were collected during HIIE...
August 31, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28857629/high-intensity-interval-training-acutely-alters-plasma-adipokine-levels-in-young-overweight-obese-women
#9
Selma Arzu Vardar, Aziz Karaca, Sibel Güldiken, Orkide Palabıyık, Necdet Süt, Ahmet Muzaffer Demir
The aim of this study was to investigate the plasma adipokine responses to high-intensity interval training (HIT) in overweight/obese women. Twelve women (age 21.7 ± 3.8 years) completed a 19 days of HIT comprising six session of 4-6 repeats of a Wingate test (0.065 kg load/kg). Plasma adipokine levels were measured before exercise, and at 5 and 90 min after exercise on the first and the last training days. Adiponectin was higher at 5 min than 90 min post-exercise (11.7 ± 7.3 and 10.5 ± 5...
August 31, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28855969/development-of-low-volume-high-intensity-aerobic-type-interval-training-for-elderly-japanese-men-a-feasibility-study
#10
Yosuke Osuka, Muneaki Matsubara, Ai Hamasaki, Yuji Hiramatsu, Hiroshi Ohshima, Kiyoji Tanaka
BACKGROUND: The purposes of this study were to identify 1) the feasibility of a novel exercise protocol (elderly Japanese male version of high-intensity interval aerobic training: EJ-HIAT) and 2) its preliminary data (%V̇O2peak, rating of perceived exertion) in comparison with traditional moderate-intensity continuous aerobic training (MICT). RESULTS: Twenty-one sedentary elderly men, aged 60-69 years, performed two exercise protocols: EJ-HIAT, consisting of 3 sets of 2-3-min cycling at 75-85%V̇O2peak with 1-2-min active rests at 50%V̇O2peak between sets, and MICT, consisting of 40-min cycling at 65%V̇O2peak...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28853029/effect-of-high-intensity-interval-training-on-fitness-fat-mass-and-cardiometabolic-biomarkers-in-children-with-obesity-a-randomised-controlled-trial
#11
Katrin A Dias, Charlotte B Ingul, Arnt E Tjønna, Shelley E Keating, Sjaan R Gomersall, Turid Follestad, Mansoureh S Hosseini, Siri M Hollekim-Strand, Torstein B Ro, Margrete Haram, Else Marie Huuse, Peter S W Davies, Peter A Cain, Gary M Leong, Jeff S Coombes
BACKGROUND: Paediatric obesity significantly increases the risk of developing cardiometabolic diseases across the lifespan. Increasing cardiorespiratory fitness (CRF) could mitigate this risk. High-intensity interval training (HIIT) improves CRF in clinical adult populations but the evidence in paediatric obesity is inconsistent. OBJECTIVES: The objectives of this study were to determine the efficacy of a 12-week, HIIT intervention for increasing CRF and reducing adiposity in children with obesity...
August 29, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28846611/high-intensity-exercise-can-it-protect-you-from-a-fast-food-diet
#12
Christian Duval, Marc-Antoine Rouillier, Rémi Rabasa-Lhoret, Antony D Karelis
The purpose of this study was to assess the ability of high intensity exercise to counteract the deleterious effects of a fast food diet on the cardiometabolic profile of young healthy men. Fifteen men were subjected to an exclusive fast food diet from a popular fast food restaurant chain (three extra value meals/day + optional snack) for 14 consecutive days. Simultaneously, participants were asked to perform each day high intensity interval training (HIIT) (15 × 60 sec sprint intervals (~90% of maximal heart rate)) on a treadmill...
August 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28846513/low-volume-high-intensity-interval-training-is-sufficient-to-ameliorate-the-severity-of-metabolic-syndrome
#13
Joyce S Ramos, Lance C Dalleck, Fabio Borrani, Kassia S Beetham, Matthew P Wallen, Alistair R Mallard, Bronwyn Clark, Sjaan Gomersall, Shelley E Keating, Robert G Fassett, Jeff S Coombes
BACKGROUND: High-intensity interval training (HIIT) is superior to moderate-intensity continuous training (MICT) at improving cardiometabolic risk. However, the optimal volume of HIIT to reduce the severity of the metabolic syndrome (MetS) has yet to be investigated. The aim of this study was to examine the impact of different volumes of HIIT and MICT on MetS severity (MetS z-score). METHODS: This was a substudy of the "Exercise in prevention of Metabolic Syndrome" (EX-MET) multicenter trial, reporting data collected at the Brisbane site...
September 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28843495/high-intensity-interval-versus-moderate-intensity-continuous-training-superior-metabolic-benefits-in-diet-induced-obesity-mice
#14
Ningning Wang, Yang Liu, Yanan Ma, Deliang Wen
AIMS: Exercise is beneficial in obesity, however, the debate about the value of high-intensity interval training (HIIT) vs. moderate-intensity continuous training (MICT) has been long lasting. Therefore, here we have compared the possible beneficial effects of two different exercise training regimes in a mouse model of diet-induced obesity (DIO). MATERIALS AND METHODS: Following 7wk. on high fat diet (HFD), ten-week-old male ICR mice (n=30) were assigned to HIIT, distance-matched MICT or remained sedentary for the next 8 constitutive weeks while maintaining the dietary treatments...
August 23, 2017: Life Sciences
https://www.readbyqxmd.com/read/28816922/nil-whey-protein-effect-on-glycaemic-control-after-intense-mixed-mode-training-in-t2d
#15
Kim A Gaffney, Adam Lucero, Lee Stoner, James Faulkner, Patricia Whitfield, Jeremy Krebs, David S Rowlands
While intense endurance and resistance exercise training and whey protein supplementation have both been shown to independently improve glycaemic control, no known studies have examined the effect of high-intensity mixed-mode interval training (MMIT) and whey supplementation in adults with Type-2 diabetes (T2D). PURPOSE: To determine if peri-training whey protein supplementation combined with MMIT can improve glycaemic control. METHODS: In a double-blind randomised controlled trial, 24 men (55...
August 14, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28812404/effects-of-a-low-resistance-interval-bicycling-intervention-in-parkinson-s-disease
#16
Mehmet Uygur, Maria Bellumori, Christopher A Knight
Previous studies have shown that people with Parkinson's disease (PD) benefit from a variety of exercise modalities with respect to symptom management and function. Among the possible exercise modalities, speedwork has been identified as a promising strategy, with direct implications for the rate and amplitude of nervous system involvement. Considering that previous speed-based exercise for PD has often been equipment, personnel and/or facility dependent, and often time intensive, our purpose was to develop a population-specific exercise program that could be self-administered with equipment that is readily found in fitness centers or perhaps the home...
August 16, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28811842/the-effect-of-three-different-exercise-training-modalities-on-cognitive-and-physical-function-in-a-healthy-older-population
#17
Carla Coetsee, Elmarie Terblanche
BACKGROUND: Older adults are encouraged to participate in regular physical activity to counter the age-related declines in physical and cognitive health. Literature on the effect of different exercise training modalities (aerobic vs resistance) on these health-related outcomes is not only sparse, but results are inconsistent. In general, it is believed that exercise has a positive effect on executive cognitive function, possibly because of the physiological adaptations through increases in fitness...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28803380/aerobic-interval-training-reduces-vascular-resistances-during-submaximal-exercise-in-obese-metabolic-syndrome-individuals
#18
Ricardo Mora-Rodriguez, V E Fernandez-Elias, F Morales-Palomo, J G Pallares, M Ramirez-Jimenez, J F Ortega
PURPOSE: The aim of this study was to determine the effects of high-intensity aerobic interval training (AIT) on exercise hemodynamics in metabolic syndrome (MetS) volunteers. METHODS: Thirty-eight, MetS participants were randomly assigned to a training (TRAIN) or to a non-training control (CONT) group. TRAIN consisted of stationary interval cycling alternating bouts at 70-90% of maximal heart rate during 45 min day(-1) for 6 months. RESULTS: CONT maintained baseline physical activity and no changes in cardiovascular function or MetS factors were detected...
August 12, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28800328/effects-of-exercise-on-cognitive-function-in-older-people-with-dementia-a-randomized-controlled-trial
#19
Annika Toots, Håkan Littbrand, Gustaf Boström, Carl Hörnsten, Henrik Holmberg, Lillemor Lundin-Olsson, Nina Lindelöf, Peter Nordström, Yngve Gustafson, Erik Rosendahl
BACKGROUND: Although physical exercise has been suggested to influence cognitive function, previous exercise studies show inconsistent results in people with dementia. OBJECTIVES: To investigate effects of exercise on cognitive function in people with dementia. METHOD: The Umeå Dementia and Exercise (UMDEX) study, a cluster-randomized controlled trial, was set in 16 nursing homes in Umeå, Sweden. One hundred-and-forty-one women and 45 men with dementia; mean age of 85 y and mean Mini-Mental State Examination (MMSE) score of 15, were randomized to a High-Intensity Functional Exercise program or a seated attention control activity...
August 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28797831/validity-of-the-actigraph-gt3x-and-bodymedia-sensewear-armband-to-estimate-energy-expenditure-during-physical-activity-and-sport
#20
Paul B Gastin, Cassy Cayzer, Dan Dwyer, Sam Robertson
OBJECTIVES: The purpose of this study was to assess the validity of the ActiGraph GT3X+ (GT3X+) and the BodyMedia SenseWear Armband (SWA) to estimate energy expenditure (EE) during physical activity and field sport movements. DESIGN: Criterion validity. METHODS: Twenty-six active adults completed a single 90min session involving alternating intervals of exercise (5min) and recovery (10min). Exercise involved walking (4km/h), jogging (8km/h), running (12km/h) or a sport-simulated circuit (three intervals)...
July 31, 2017: Journal of Science and Medicine in Sport
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