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https://www.readbyqxmd.com/read/27920258/the-effects-of-three-different-exercise-modalities-on-markers-of-male-reproduction-in-healthy-subjects-a-randomized-controlled-trial
#1
Behzad Hajizadeh Maleki, Bakhtyar Tartibian, Mohammad Chehrazi
The aim of this study was to investigate the effects of moderate-intensity continuous training (MICT), high-intensity continuous training (HICT) and high-intensity interval training (HIIT) on markers of male reproduction including seminal markers of oxidative stress and inflammation as well as semen quality and sperm DNA integrity in healthy human subjects. A total of 397 healthy male volunteers were screened and 280 were randomly assigned to one of the MICT (n = 70), HICT (n = 70), HIIT (n = 70) and non-exercise (NON-EX, n = 70) groups...
February 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27852718/high-intensity-interval-training-versus-moderate-intensity-steady-state-training-in-uk-cardiac-rehabilitation-programmes-hiit-or-miss-uk-study-protocol-for-a-multicentre-randomised-controlled-trial-and-economic-evaluation
#2
Gordon McGregor, Simon Nichols, Thomas Hamborg, Lucy Bryning, Rhiannon Tudor-Edwards, David Markland, Jenny Mercer, Stefan Birkett, Stuart Ennis, Richard Powell, Brian Begg, Mark J Haykowsky, Prithwish Banerjee, Lee Ingle, Rob Shave, Karianne Backx
INTRODUCTION: Current international guidelines for cardiac rehabilitation (CR) advocate moderate-intensity exercise training (MISS, moderate-intensity steady state). This recommendation predates significant advances in medical therapy for coronary heart disease (CHD) and may not be the most appropriate strategy for the 'modern' patient with CHD. High-intensity interval training (HIIT) appears to be a safe and effective alternative, resulting in greater improvements in peak oxygen uptake (VO2 peak)...
November 16, 2016: BMJ Open
https://www.readbyqxmd.com/read/27808004/interval-training-elicits-higher-enjoyment-versus-moderate-exercise-in-persons-with-spinal-cord-injury
#3
Todd A Astorino, Jacob S Thum
BACKGROUND: High intensity interval training (HIIT) is a robust and time-efficient approach to improve multiple health indices including maximal oxygen uptake (VO2max). Despite the intense nature of HIIT, data in untrained adults report greater enjoyment of HIIT versus continuous exercise (CEX). However, this has yet to be investigated in persons with spinal cord injury (SCI). OBJECTIVE: To examine differences in enjoyment in response to CEX and HIIT in persons with SCI...
November 3, 2016: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/27802217/platelet-activation-and-function-in%C3%A2-response%C3%A2-to-high-intensity-interval-exercise-and-moderate-continuous-exercise%C3%A2-in-cabg-and-pci-patients
#4
Sajad Ahmadizad, Akbar Nouri-Habashi, Hiwa Rahmani, Majid Maleki, Nasim Naderi, Sara Lotfian, Morteza Salimian
BACKGROUND: The effects of high intensity interval training (HIIT) on inflammatory markers and endothelial function have been extensively shown. However, the acute effect of HIIT on platelet activation and function in patients with recent revascularization is unclear. OBJECTIVE: The purpose of present study was to compare the responses of platelet activation (CD62P) and function (platelet aggregation) to high intensity interval exercise (HIIE) and moderate continuous exercise (MCE) in coronary artery bypass grafting (CABG) and percutaneous coronary interventions (PCI) patients...
October 12, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27776003/aerobic-exercise-training-modalities-and-prediabetes-risk-reduction
#5
Chip P Rowan, Michael C Riddell, Norman Gledhill, Veronica K Jamnik
PURPOSE: Prediabetes is linked to several modifiable risk factors, in particular, physical activity participation. The optimal prescription for physical activity remains uncertain. This pilot study aimed to investigate the effectiveness of continuous moderate intensity (CON) versus high intensity interval (HIIT) aerobic training in persons with prediabetes. Outcome measures included hemoglobin A1c (A1C), body composition, musculoskeletal and aerobic fitness. METHODS: Participants (n= 35) were recruited and screened using a questionnaire plus capillary blood point-of-care A1C analysis...
October 21, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27774458/short-term-high-intensity-interval-training-on-body-composition-and-blood-glucose-in-overweight-and-obese-young-women
#6
Zhaowei Kong, Shengyan Sun, Min Liu, Qingde Shi
This study was to determine the effects of five-week high-intensity interval training (HIIT) on cardiorespiratory fitness, body composition, blood glucose, and relevant systemic hormones when compared to moderate-intensity continuous training (MICT) in overweight and obese young women. Methods. Eighteen subjects completed 20 sessions of HIIT or MICT for five weeks. HIIT involved 60 × 8 s cycling at ~90% of peak oxygen consumption ([Formula: see text]) interspersed with 12 s recovery, whereas MICT involved 40-minute continuous cycling at 65% of [Formula: see text]...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27748956/physiological-adaptations-to-interval-training-and-the-role-of-exercise-intensity
#7
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
https://www.readbyqxmd.com/read/27748470/exercise-training-modalities-in-chronic-heart-failure-does-high-intensity-aerobic-interval-training-make-the-difference
#8
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
https://www.readbyqxmd.com/read/27731374/exercise-training-alleviates-hypoxia-induced-mitochondrial-dysfunction-in-the-lymphocytes-of-sedentary-males
#9
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
https://www.readbyqxmd.com/read/27681241/high-intensity-interval-training-a-review-of-its-impact-on-glucose-control-and-cardiometabolic-health
#10
REVIEW
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...
January 2017: Diabetologia
https://www.readbyqxmd.com/read/27635241/salutary-effects-of-high-intensity-interval-training-in-persons-with-elevated-cardiovascular-risk
#11
REVIEW
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
https://www.readbyqxmd.com/read/27594392/influence-of-a-high-intensity-interval-training-session-on-peripheral-and-central-blood-pressure-at-rest-and-during-stress-testing-in-healthy-individuals
#12
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
https://www.readbyqxmd.com/read/27567125/high-intensity-interval-training-reduces-abdominal-fat-mass-in-postmenopausal-women-with-type-2-diabetes
#13
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...
December 2016: Diabetes & Metabolism
https://www.readbyqxmd.com/read/27548688/high-intensity-interval-training-versus-moderate-intensity-continuous-training-in-the-prevention-management-of-cardiovascular-disease
#14
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/27500951/left-ventricular-vascular-and-metabolic-adaptations-to-high-intensity-interval-and-moderate-intensity-continuous-training-a-randomized-trial-in-healthy-middle-aged-men
#15
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
KEY POINTS: High-intensity interval training (HIIT) has become popular, time-sparing alternative to moderate intensity continuous training (MICT), although the cardiac vascular and metabolic effects of HIIT are incompletely known. We compared the effects of 2-week interventions with HIIT and MICT on myocardial perfusion and free fatty acid and glucose uptake. Insulin-stimulated myocardial glucose uptake was decreased by training without any significantly different response between the groups, whereas free fatty acid uptake remained unchanged...
December 1, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27498746/potential-universal-application-of-high-intensity-interval-training-from-athletes-and-sports-lovers-to-patients
#16
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
https://www.readbyqxmd.com/read/27467767/12%C3%A2-min-week-of-high-intensity-interval-training-reduces-aortic-reservoir-pressure-in-individuals-with-metabolic-syndrome-a-randomized-trial
#17
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
https://www.readbyqxmd.com/read/27448554/right-ventricular-metabolic-adaptations-to-high-intensity-interval-and-moderate-intensity-continuous-training-in-healthy-middle-aged-men
#18
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
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
#19
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
https://www.readbyqxmd.com/read/27368057/comparison-of-high-intensity-interval-training-and-moderate-to-vigorous-continuous-training-for-cardiometabolic-health-and-exercise-enjoyment-in-obese-young-women-a-randomized-controlled-trial
#20
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
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