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Hiit vs continuous

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https://www.readbyqxmd.com/read/28941598/energy-matched-moderate-and-high-intensity-exercise-training-improves-nonalcoholic-fatty-liver-disease-risk-independent-of-changes-in-body-mass-or-abdominal-adiposity-a-randomized-trial
#1
Nathan C Winn, Liu Ying, R Scott Rector, Elizabeth J Parks, Jamal A Ibdah, Jill A Kanaley
BACKGROUND AND PURPOSE: Exercise training is commonly prescribed for individuals diagnosed with nonalcoholic fatty liver disease (NAFLD); however, consensus regarding the volume and intensity of exercise for optimal benefits is lacking. Thus, we determined whether high intensity interval exercise training (HIIT) produced greater reductions in intrahepatic lipid (IHL) content and NAFLD risk factors compared with energy-matched moderate intensity continuous exercise training (MICT) in obese adults with liver steatosis...
September 20, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28843495/high-intensity-interval-versus-moderate-intensity-continuous-training-superior-metabolic-benefits-in-diet-induced-obesity-mice
#2
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/28811842/the-effect-of-three-different-exercise-training-modalities-on-cognitive-and-physical-function-in-a-healthy-older-population
#3
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/28792851/high-intensity-interval-and-moderate-intensity-continuous-training-elicit-similar-enjoyment-and-adherence-levels-in-overweight-and-obese-adults
#4
RANDOMIZED CONTROLLED TRIAL
Chantal A Vella, Katrina Taylor, Devin Drummer
BACKGROUND: High-intensity interval training (HIIT) has been shown to improve cardiometabolic health during supervised lab-based studies but adherence, enjoyment, and health benefits of HIIT performed independently are yet to be understood. We compared adherence, enjoyment, and cardiometabolic outcomes after 8 weeks of HIIT or moderate-intensity continuous training (MICT), matched for energy expenditure, in overweight and obese young adults. METHODS: 17 adults were randomized to HIIT or MICT...
October 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28648356/effects-of-high-intensity-interval-versus-continuous-exercise-training-on-post-exercise-heart-rate-recovery-in-coronary-heart-disease-patients
#5
Koldobika Villelabeitia-Jaureguizar, Davinia Vicente-Campos, Alejandro Berenguel Senen, Verónica Hernández Jiménez, María Elvira Barrios Garrido-Lestache, Jose López Chicharro
BACKGROUND: Heart rate recovery (HRR) has been considered a prognostic and mortality indicator in both healthy and coronary patients. Physical exercise prescription has shown improvements in VO2peak and HRR, but most of the studies have been carried out applying continuous training at a moderate intensity, being very limited the use of protocols of high intensity interval training in coronary patients. We aimed to compare the effects of a moderate continuous training (MCT) versus a high intensity interval training (HIIT) programme on VO2peak and HRR...
October 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28570494/endurance-running-training-individually-guided-by-hrv-in-untrained-women
#6
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/28493030/ambulatory-blood-pressure-response-to-a-bout-of-hiit-in-metabolic-syndrome-patients
#7
M Ramirez-Jimenez, F Morales-Palomo, J G Pallares, Ricardo Mora-Rodriguez, J F Ortega
PURPOSE: The effectiveness of exercise to lower blood pressure may depend on the type and intensity of exercise. We study the short-term (i.e., 14-h) effects of a bout of high-intensity aerobic interval training (HIIT) on blood pressure in metabolic syndrome (MetS) patients. METHODS: Nineteen MetS patients (55.2 ± 7.3 years, 6 women) entered the study. Eight of them were normotensive and eleven hypertensive according to MetS threshold (≥130 mmHg for SBP and/or ≥85 mmHg for DBP)...
July 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28482361/acute-hypotension-after-high-intensity-interval-exercise-in-metabolic-syndrome-patients
#8
Felix Morales-Palomo, Miguel Ramirez-Jimenez, Juan Fernando Ortega, Jesús G Pallarés, Ricardo Mora-Rodriguez
The purpose of this study was to compare the magnitude of post-exercise hypotension (PEH) after a bout of cycling exercise using high-intensity interval training (HIIT) in comparison to a bout of traditional moderate-intensity continuous exercise (CE). After supine rest 14 obese (31±1 kg·m(-2)) middle-age (57±2 y) metabolic syndrome patients (50% hypertensive) underwent a bout of HIIT or a bout of CE in a random order and then returned to supine recovery for another 45 min. Exercise trials were isocaloric and compared to a no-exercise trial (CONT) of supine rest for a total of 160 min...
July 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28401638/the-effects-of-high-intensity-interval-training-vs-moderate-intensity-continuous-training-on-body-composition-in-overweight-and-obese-adults-a-systematic-review-and-meta-analysis
#9
REVIEW
M Wewege, R van den Berg, R E Ward, A Keech
OBJECTIVE: The objective of this study is to compare the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) for improvements in body composition in overweight and obese adults. METHODS: Trials comparing HIIT and MICT in overweight or obese participants aged 18-45 years were included. Direct measures (e.g. whole-body fat mass) and indirect measures (e.g. waist circumference) were examined. RESULTS: From 1,334 articles initially screened, 13 were included...
June 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28318098/decreased-insulin-stimulated-brown-adipose-tissue-glucose-uptake-after-short-term-exercise-training-in-healthy-middle-aged-men
#10
Piryanka Motiani, Kirsi A Virtanen, Kumail K Motiani, Joonas J Eskelinen, Roeland J Middelbeek, Laurie J Goodyear, Anna M Savolainen, Jukka Kemppainen, Jørgen Jensen, Mueez U Din, Virva Saunavaara, Riitta Parkkola, Eliisa Löyttyniemi, Juhani Knuuti, Pirjo Nuutila, Kari K Kalliokoski, Jarna C Hannukainen
AIMS: To test the hypothesis that high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) improve brown adipose tissue (BAT) insulin sensitivity. PARTICIPANTS AND METHODS: Healthy middle-aged men (n = 18, age 47 years [95% confidence interval {CI} 49, 43], body mass index 25.3 kg/m(2) [95% CI 24.1-26.3], peak oxygen uptake (VO2peak ) 34.8 mL/kg/min [95% CI 32.1, 37.4] ) were recruited and randomized into six HIIT or MICT sessions within 2 weeks...
October 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28303003/effects-of-high-intensity-interval-training-and-moderate-intensity-continuous-training-on-glycaemic-control-and-skeletal-muscle-mitochondrial-function-in-db-db-mice
#11
Vivien Chavanelle, Nathalie Boisseau, Yolanda F Otero, Lydie Combaret, Dominique Dardevet, Christophe Montaurier, Geoffrey Delcros, Sébastien L Peltier, Pascal Sirvent
Physical activity is known as an effective strategy for prevention and treatment of Type 2 Diabetes. The aim of this work was to compare the effects of a traditional Moderate Intensity Continuous Training (MICT) with a High Intensity Interval Training (HIIT) on glucose metabolism and mitochondrial function in diabetic mice. Diabetic db/db male mice (N = 25) aged 6 weeks were subdivided into MICT, HIIT or control (CON) group. Animals in the training groups ran on a treadmill 5 days/week during 10 weeks...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28216412/sex-impacts-the-flow-mediated-dilation-response-to-acute-aerobic-exercise-in-older-adults
#12
Jeung-Ki Yoo, Michelle M Pinto, Han-Kyul Kim, Chueh-Lung Hwang, Jisok Lim, Eileen M Handberg, Demetra D Christou
There is growing evidence of sex differences in the chronic effect of aerobic exercise on endothelial function (flow-mediated dilation; FMD) in older adults, but whether there are sex differences also in the acute effect of aerobic exercise on FMD in older adults is unknown. The purpose of this study was to test the hypothesis that sex modulates the FMD response to acute aerobic exercise in older adults. Thirteen older men and fifteen postmenopausal women (67±1 vs. 65±2years, means±SE, P=0.6), non-smokers, free of major clinical disease, participated in this randomized crossover study...
May 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28207951/endurance-capacity-and-neuromuscular-fatigue-following-high-vs-moderate-intensity-endurance-training-a-randomized-trial
#13
T J O'Leary, J Collett, K Howells, M G Morris
High-intensity exercise induces significant central and peripheral fatigue; however, the effect of endurance training on these mechanisms of fatigue is poorly understood. We compared the effect of cycling endurance training of disparate intensities on high-intensity exercise endurance capacity and the associated limiting central and peripheral fatigue mechanisms. Twenty adults were randomly assigned to 6 weeks of either high-intensity interval training (HIIT, 6-8×5 minutes at halfway between lactate threshold and maximal oxygen uptake [50%Δ]) or volume-matched moderate-intensity continuous training (CONT, ~60-80 minutes at 90% lactate threshold)...
February 16, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27787335/cardiovascular-drift-during-training-for-fitness-in-patients-with-metabolic-syndrome
#14
Felix Morales-Palomo, Miguel Ramirez-Jimenez, Juan Fernando Ortega, Jesus Garcia Pallares, Ricardo Mora-Rodriguez
PURPOSE: The health benefits of a training program are largely influenced by the exercise dose and intensity. We sought to determine whether during a training bout of continuous versus interval exercise the workload needs to be reduced to maintain the prescribed target heart rate (HR). METHODS: Fourteen obese (31 ± 4 kg·m) middle-age (57 ± 8 yr) individuals with metabolic syndrome, underwent two exercise training bouts matched by energy expenditure (i.e., 70 ± 5 min of continuous exercise [CE] or 45 min of interval exercise, high-intensity interval training [HIIT])...
March 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27784688/high-intensity-interval-training-but-not-continuous-training-reverses-right-ventricular-hypertrophy-and-dysfunction-in-a-rat-model-of-pulmonary-hypertension
#15
COMPARATIVE STUDY
Mary Beth Brown, Evandro Neves, Gary Long, Jeremy Graber, Brett Gladish, Andrew Wiseman, Matthew Owens, Amanda J Fisher, Robert G Presson, Irina Petrache, Jeffrey Kline, Tim Lahm
Exercise is beneficial in pulmonary arterial hypertension (PAH), although studies to date indicate little effect on the elevated pulmonary pressures or maladaptive right ventricle (RV) hypertrophy associated with the disease. For chronic left ventricle failure, high-intensity interval training (HIIT) promotes greater endothelial stimulation and superior benefit than customary continuous exercise training (CExT); however, HIIT has not been tested for PAH. Therefore, here we investigated acute and chronic responses to HIIT vs...
February 1, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27548688/high-intensity-interval-training-versus-moderate-intensity-continuous-training-in-the-prevention-management-of-cardiovascular-disease
#16
REVIEW
Syed R Hussain, Andrea Macaluso, Stephen J Pearson
Moderate-intensity continuous training (MICT) has long been considered the most effective exercise treatment modality for the prevention and management of cardiovascular disease (CVD), but more recently high-intensity interval training (HIIT) has been viewed as a potential alternative to MICT in accruing such benefits. HIIT was initially found to induce significant improvements in numerous physiological and health-related indices, to a similar if not superior extent to MICT. Since then, many studies have attempted to explore the potential clinical utility of HIIT, relative to MICT, with respect to treating numerous cardiovascular conditions, such as coronary artery disease, heart failure, stroke, and hypertension...
November 2016: Cardiology in Review
https://www.readbyqxmd.com/read/27396440/superior-mitochondrial-adaptations-in-human-skeletal-muscle-after-interval-compared-to-continuous-single-leg-cycling-matched-for-total-work
#17
Martin J MacInnis, Evelyn Zacharewicz, Brian J Martin, Maria E Haikalis, Lauren E Skelly, Mark A Tarnopolsky, Robyn M Murphy, Martin J Gibala
KEY POINTS: A classic unresolved issue in human integrative physiology involves the role of exercise intensity, duration and volume in regulating skeletal muscle adaptations to training. We employed counterweighted single-leg cycling as a unique within-subject model to investigate the role of exercise intensity in promoting training-induced increases in skeletal muscle mitochondrial content. Six sessions of high-intensity interval training performed over 2 weeks elicited greater increases in citrate synthase maximal activity and mitochondrial respiration compared to moderate-intensity continuous training matched for total work and session duration...
May 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/27255523/effects-of-high-intensity-interval-training-and-moderate-intensity-continuous-training-on-endothelial-function-and-cardiometabolic-risk-markers-in-obese-adults
#18
Brandon J Sawyer, Wesley J Tucker, Dharini M Bhammar, Justin R Ryder, Karen L Sweazea, Glenn A Gaesser
We hypothesized that high-intensity interval training (HIIT) would be more effective than moderate-intensity continuous training (MICT) at improving endothelial function and maximum oxygen uptake (V̇o2 max) in obese adults. Eighteen participants [35.1 ± 8.1 (SD) yr; body mass index = 36.0 ± 5.0 kg/m(2)] were randomized to 8 wk (3 sessions/wk) of either HIIT [10 × 1 min, 90-95% maximum heart rate (HRmax), 1-min active recovery] or MICT (30 min, 70-75% HRmax). Brachial artery flow-mediated dilation (FMD) increased after HIIT (5...
July 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27183124/fatigue-exacerbation-by-interval-or-continuous-exercise-in-chronic-fatigue-syndrome
#19
Carolina X Sandler, Andrew R Lloyd, Benjamin K Barry
PURPOSE: The objective of this study is to determine whether the typical exacerbation of symptoms in patients with chronic fatigue syndrome (CFS) after a bout of exercise differs between high-intensity interval training (HIIT) or continuous (CONT) aerobic exercise of the same duration and mechanical work. METHODS: Participants with specialist-diagnosed CFS performed two 20-min bouts of cycling in a randomized crossover study. The bouts were either moderate-intensity continuous (70% age-predicted HR maximum) or high-intensity interval exercise, separated by at least 2 wk...
October 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/26918846/the-effect-of-low-volume-interval-training-on-resting-blood-pressure-in-pre-hypertensive-subjects-a-preliminary-study
#20
Benjamin C Skutnik, Joshua R Smith, Ariel M Johnson, Stephanie P Kurti, Craig A Harms
OBJECTIVES: Clinically pre-hypertensive adults are at a greater risk of developing hypertension, stiffened arteries, and other cardiovascular risks. Endurance exercise training has been shown to improve elevated resting blood pressure and C-reactive protein (CRP) levels. However, a primary barrier preventing individuals from engaging in regular physical activity is a lack of time. The purpose of our study was to determine if a high-intensity interval training (HIIT) protocol would be as effective as continuous aerobic endurance training (ET) on resting blood pressure in pre-hypertensive participants...
2016: Physician and Sportsmedicine
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