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Hiit and moderate continuous training

Martin J MacInnis, Martin J Gibala
Interval exercise typically involves repeated bouts of relatively intense exercise interspersed by short periods of recovery. A common classification scheme subdivides this method into high-intensity interval training (HIIT; 'near maximal' efforts) and sprint interval training (SIT; 'supramaximal' efforts). Both forms of interval training induce the classic physiological adaptations characteristic of moderate-intensity continuous training (MICT) such as increased aerobic capacity (VO2max ) and mitochondrial content...
October 17, 2016: Journal of Physiology
Francesco Giallauria, Neil Andrew Smart, Antonio Cittadini, Carlo Vigorito
Exercise training (ET) is strongly recommended in patients with chronic heart failure (CHF). Moderate-intensity aerobic continuous ET is the best established training modality in CHF patients. In the last decade, however, high-intensity interval exercise training (HIIT) has aroused considerable interest in cardiac rehabilitation community. Basically, HIIT consists of repeated bouts of high-intensity exercise alternated with recovery periods. In CHF patients, HIIT exerts larger improvements in exercise capacity compared to moderate-continuous ET...
October 14, 2016: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
Hsing-Hua Tsai, Shao-Chiang Chang, Cheng-Hsien Chou, Tzu-Pin Weng, Chih-Chin Hsu, Jong-Shyan Wang
This study elucidates how interval and continuous exercise regimens affect the mitochondrial functionality of lymphocytes under hypoxic stress. Sixty healthy sedentary males were randomly assigned to engage in either high-intensity interval training (HIIT, 3 min intervals at 80% and 40% VO2max, n = 20) or moderate-intensity continuous training (MICT, sustained 60% VO2max, n = 20) for 30 min/day, 5 days/week for 6 weeks or were assigned to a control group that did not receive exercise intervention (n = 20)...
October 12, 2016: Scientific Reports
Sophie Cassidy, Christian Thoma, David Houghton, Michael I Trenell
Exercise plays a central role in the management and treatment of common metabolic diseases, but modern society presents many barriers to exercise. Over the past decade there has been considerable interest surrounding high-intensity interval training (HIIT), with advocates claiming it can induce health benefits of similar, if not superior magnitude to moderate-intensity continuous exercise, despite reduced time commitment. As the safety of HIIT becomes clearer, focus has shifted away from using HIIT in healthy individuals towards using this form of training in clinical populations...
September 28, 2016: Diabetologia
Jerome L Fleg
Although moderate-intensity continuous training (MICT) has been the traditional model for aerobic exercise training for over four decades, a growing body of literature has demonstrated equal if not greater improvement in aerobic capacity and similar beneficial effects on body composition, glucose metabolism, blood pressure, and quality of life from high-intensity interval training (HIIT). An advantage of HIIT over MICT is the shorter time required to perform the same amount of energy expenditure. The current brief review summarizes the effects of HIIT on peak aerobic capacity and cardiovascular risk factors in healthy adults and those with various cardiovascular diseases, including coronary artery disease, chronic heart failure, and post heart transplantation...
2016: F1000Research
Sascha Ketelhut, Florian Milatz, Walter Heise, Reinhard G Ketelhut
BACKGROUND: Regular physical activity is known to reduce arterial pressure (BP). In a previous investigation, we could prove that even a single bout of moderate-intensity continuous exercise (MICE) causes a prolonged reduction in BP. Whether high-intensity interval training (HIIT) has a favourable influence on BP, and therefore may be followed subjects and methods by a prolonged BP reduction, should be examined on the basis of blood pressure response after exercise and during a subsequent stress test...
September 2016: VASA. Zeitschrift Für Gefässkrankheiten
F Maillard, S Rousset, B Pereira, A Traore, P de Pradel Del Amaze, Y Boirie, M Duclos, N Boisseau
AIM: This study compared the effect of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) for 16 weeks on whole-body and abdominal fat mass (FM) in postmenopausal women with type 2 diabetes (T2D). METHODS: Seventeen women (69±1 years; BMI: 31±1kg.m(-2)) were randomly assigned to either a HIIT [60×(8s at 77-85% HRmax, 12s of active recovery)] or MICT (40min at 55-60% of their individual HRR) cycling program for 16 weeks, 2 days/week...
August 23, 2016: Diabetes & Metabolism
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
Jari-Joonas Eskelinen, Ilkka Heinonen, Eliisa Löyttyniemi, Juuso Hakala, Marja A Heiskanen, Kumail K Motiani, Kirsi Virtanen, Jussi P Pärkkä, Juhani Knuuti, Jarna C Hannukainen, Kari K Kalliokoski
High-intensity interval training (HIIT) is time-efficient way to get the health benefits of exercise, but the cardiac effects of this training mode are incompletely known. We compared the effects of short-term HIIT and moderate intensity continuous training (MICT) interventions on myocardial perfusion and metabolism and cardiac function in healthy, sedentary, middle-aged men. Twenty-eight healthy, middle-aged men were randomized to either HIIT or MICT groups (n = 14 in both) and underwent six cycle ergometer training sessions within two weeks (HIIT session: 4-6 × 30 s all-out cycling / 4 min recovery, MICT session 40-60 min at 60 % VO2 peak)...
August 8, 2016: Journal of Physiology
Azuma Koichiro, Matsumoto Hideo
Recently, high-intensity interval training (HIIT) has received much attention as a promising exercise option not only to improve aerobic fitness, but also to prevent and improve lifestyle-related diseases. Epidemiological studies have shown that the exercise volume, as determined by the product of exercise intensity, duration, and frequency, has been shown to be important for improvements in muscle mitochondrial activity and subsequent improvements in aerobic fitness, insulin sensitivity, and metabolic variables...
August 8, 2016: Keio Journal of Medicine
Joyce S Ramos, Lance C Dalleck, Maximiano V Ramos, Fabio Borrani, Llion Roberts, Sjaan Gomersall, Kassia S Beetham, Katrin A Dias, Shelley E Keating, Robert G Fassett, James E Sharman, Jeff S Coombes
OBJECTIVE: Decreased aortic reservoir function leads to a rise in aortic reservoir pressure that is an independent predictor of cardiovascular events. Although there is evidence that high-intensity interval training (HIIT) would be useful to improve aortic reservoir pressure, the optimal dose of high-intensity exercise to improve aortic reservoir function has yet to be investigated. Therefore, this study compared the effect of different volumes of HIIT and moderate-intensity continuous training (MICT) on aortic reservoir pressure in participants with the metabolic syndrome (MetS)...
October 2016: Journal of Hypertension
Marja A Heiskanen, Tuija Leskinen, Ilkka H A Heinonen, Eliisa Löyttyniemi, Jari-Joonas Eskelinen, Kirsi Virtanen, Jarna C Hannukainen, Kari K Kalliokoski
Despite the recent studies on structural and functional adaptations of the right ventricle (RV) to exercise training, adaptations of its metabolism remain unknown. We investigated the effects of short-term, high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on RV glucose and fat metabolism. Twenty-eight untrained, healthy 40-55 yr-old-men were randomized into HIIT (n = 14) and MICT (n = 14) groups. Subjects performed six supervised cycle ergometer training sessions within 2 wk (HIIT session: 4-6 × 30 s all-out cycling/4-min recovery; MICT session: 40-60 min at 60% peak O2 uptake)...
September 1, 2016: American Journal of Physiology. Heart and Circulatory Physiology
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...
July 11, 2016: Journal of Physiology
Zhaowei Kong, Xitao Fan, Shengyan Sun, Lili Song, Qingde Shi, Jinlei Nie
OBJECTIVE: The aim of this study was to compare the effects of 5-week high-intensity interval training (HIIT) and moderate-to-vigorous intensity continuous training (MVCT) on cardiometabolic health outcomes and enjoyment of exercise in obese young women. METHODS: A randomized controlled experiment was conducted that involved thirty-one obese females (age range of 18-30) randomly assigned to either HIIT or MVCT five-week training programs. Participants in HIIT condition performed 20 min of repeated 8 s cycling interspersed with 12 s rest intervals, and those in MVCT condition cycled continuously for 40 min at 60-80% of peak oxygen consumption ([Formula: see text]O2peak), both for four days in a week...
2016: PloS One
Chueh-Lung Hwang, Jeung-Ki Yoo, Han-Kyul Kim, Moon-Hyon Hwang, Eileen M Handberg, John W Petersen, Demetra D Christou
Aging is associated with decreased aerobic fitness and cardiac remodeling leading to increased risk for cardiovascular disease. High-intensity interval training (HIIT) on the treadmill has been reported to be more effective in ameliorating these risk factors compared with moderate-intensity continuous training (MICT) in patients with cardiometabolic disease. In older adults, however, weight-bearing activities are frequently limited due to musculoskeletal and balance problems. The purpose of this study was to examine the feasibility and safety of non-weight-bearing all-extremity HIIT in older adults...
September 2016: Experimental Gerontology
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
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
Katrin A Dias, Jeff S Coombes, Daniel J Green, Sjaan R Gomersall, Shelley E Keating, Arnt Erik Tjonna, Siri Marte Hollekim-Strand, Mansoureh Sadat Hosseini, Torstein Baade Ro, Margrete Haram, Else Marie Huuse, Peter S W Davies, Peter A Cain, Gary M Leong, Charlotte B Ingul
INTRODUCTION: The prevalence of paediatric obesity is increasing, and with it, lifestyle-related diseases in children and adolescents. High-intensity interval training (HIIT) has recently been explored as an alternate to traditional moderate-intensity continuous training (MICT) in adults with chronic disease and has been shown to induce a rapid reversal of subclinical disease markers in obese children and adolescents. The primary aim of this study is to compare the effects of HIIT with MICT on myocardial function in obese children and adolescents...
2016: BMJ Open
Mathieu Gayda, Paula A B Ribeiro, Martin Juneau, Anil Nigam
In this review, we discuss the most recent forms of exercise training available to patients with cardiac disease and their comparison or their combination (or both) during short- and long-term (phase II and III) cardiac rehabilitation programs. Exercise training modalities to be discussed include inspiratory muscle training (IMT), resistance training (RT), continuous aerobic exercise training (CAET), and high-intensity interval training (HIIT). Particular emphasis is placed on HIIT compared or combined (or both) with other forms such as CAET or RT...
April 2016: Canadian Journal of Cardiology
Koldobika Villelabeitia Jaureguizar, Davinia Vicente-Campos, Lorena Ruiz Bautista, Cesar Hernández de la Peña, María José Arriaza Gómez, María José Calero Rueda, Ignacio Fernández Mahillo
PURPOSE: There is strong evidence that exercise training has beneficial health effects in patients with cardiovascular disease. Most studies have focused on moderate continuous training (MCT); however, a body of evidence has begun to emerge demonstrating that high-intensity interval training (HIIT) has significantly better results in terms of morbidity and mortality. The aim of this study was to compare the effects of MCT versus HIIT on functional capacity and quality of life and to assess safety...
March 2016: Journal of Cardiopulmonary Rehabilitation and Prevention
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