The Effect of Continuous Moderate Intensity Exercise Training Combined with High Intensity Interval Training on Cardiovascular Disease Risk Factors PDF Download
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Author: Brendon Hugh Roxburgh
Publisher:
ISBN:
Category : Cardiovascular system
Languages : en
Pages : 248
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Book Description
Cardiovascular diseases (CVD) and type 2 diabetes are a major health and economic burden on society and without intervention, incidence will continue to increase. High intensity interval training (HIIT) is emerging as a time efficient strategy for improving risk factors of CVD and type 2 diabetes; however, there is a lack of research on HIIT in sedentary, at-risk individuals. Whilst HIIT has shown superior improvement in CVD risk factors, when compared with continuous moderate intensity exercise training (CMIET), it may be unrealistic to exclusively adopt this form of training as a lifestyle change. PURPOSE: The purpose of this study was to compare how 12 weeks of HIIT and CMIET affected cardiorespiratory fitness (VO2max), insulin sensitivity and other risk factors for CVD, in sedentary individuals at moderate risk of CVD. METHODS: Twenty nine sedentary subjects at moderate risk of CVD were recruited for 12 weeks of exercise training. Subjects were randomised into three groups: HIIT (n=9; 8-12 x 60 sec at 100% VO2max, 150 sec active recovery), CMIET (n=10; 30 min at 45-60% oxygen consumption reserve (VO2R)) and a sedentary control group (n=10). Participants in the HIIT group performed a single weekly bout of HIIT and four weekly sessions of CMIET, whilst the CMIET group performed five weekly CMIET sessions. Cardiorespiratory fitness, insulin sensitivity (HOMA model), blood lipids, body composition and quality of life were measured pre and post intervention. Probabilistic magnitude-based inferences were determined to assess the likelihood that the true value of the effect represented substantial change. RESULTS: Relative VO2max increased by 10.1% in in the HIIT group (32.7 ± 9.2 to 36.0 ± 11.5 mL·kg-1·min-1) and 3.9% in the CMIET group (33.2 ± 4.0 to 34.5 ± 6.1 mL·kg-1·min-1), whilst there was a 5.7% decrease in the control group (30.0 ± 4.6 to 28.3 ± 6.5 mL·kg-1·min-1). It was 'unclear' if a clinically significant difference existed between the HIIT and CMIET groups. There was a decrease in insulin sensitivity for both exercising groups (HIIT: 101 ± 27.3 to 90.3 ± 29.0%; CMIET: 95.6 ± 42.6 to 84.1 ± 25.6%), with a 'possibly trivial' clinical inference between groups. CONCLUSION: Both exercising groups showed clinically meaningful improvements in VO2max, body composition (hip and waist circumference), systolic and diastolic blood pressure and total and LDL cholesterol. However, it remains 'unclear' whether one type of exercise training regimen elicits a superior CVD risk factor reduction relative to its counterpart.
Author: Brendon Hugh Roxburgh
Publisher:
ISBN:
Category : Cardiovascular system
Languages : en
Pages : 248
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Book Description
Cardiovascular diseases (CVD) and type 2 diabetes are a major health and economic burden on society and without intervention, incidence will continue to increase. High intensity interval training (HIIT) is emerging as a time efficient strategy for improving risk factors of CVD and type 2 diabetes; however, there is a lack of research on HIIT in sedentary, at-risk individuals. Whilst HIIT has shown superior improvement in CVD risk factors, when compared with continuous moderate intensity exercise training (CMIET), it may be unrealistic to exclusively adopt this form of training as a lifestyle change. PURPOSE: The purpose of this study was to compare how 12 weeks of HIIT and CMIET affected cardiorespiratory fitness (VO2max), insulin sensitivity and other risk factors for CVD, in sedentary individuals at moderate risk of CVD. METHODS: Twenty nine sedentary subjects at moderate risk of CVD were recruited for 12 weeks of exercise training. Subjects were randomised into three groups: HIIT (n=9; 8-12 x 60 sec at 100% VO2max, 150 sec active recovery), CMIET (n=10; 30 min at 45-60% oxygen consumption reserve (VO2R)) and a sedentary control group (n=10). Participants in the HIIT group performed a single weekly bout of HIIT and four weekly sessions of CMIET, whilst the CMIET group performed five weekly CMIET sessions. Cardiorespiratory fitness, insulin sensitivity (HOMA model), blood lipids, body composition and quality of life were measured pre and post intervention. Probabilistic magnitude-based inferences were determined to assess the likelihood that the true value of the effect represented substantial change. RESULTS: Relative VO2max increased by 10.1% in in the HIIT group (32.7 ± 9.2 to 36.0 ± 11.5 mL·kg-1·min-1) and 3.9% in the CMIET group (33.2 ± 4.0 to 34.5 ± 6.1 mL·kg-1·min-1), whilst there was a 5.7% decrease in the control group (30.0 ± 4.6 to 28.3 ± 6.5 mL·kg-1·min-1). It was 'unclear' if a clinically significant difference existed between the HIIT and CMIET groups. There was a decrease in insulin sensitivity for both exercising groups (HIIT: 101 ± 27.3 to 90.3 ± 29.0%; CMIET: 95.6 ± 42.6 to 84.1 ± 25.6%), with a 'possibly trivial' clinical inference between groups. CONCLUSION: Both exercising groups showed clinically meaningful improvements in VO2max, body composition (hip and waist circumference), systolic and diastolic blood pressure and total and LDL cholesterol. However, it remains 'unclear' whether one type of exercise training regimen elicits a superior CVD risk factor reduction relative to its counterpart.
Author: Joep Perk
Publisher: Springer Science & Business Media
ISBN: 9781846289934
Category : Medical
Languages : en
Pages : 540
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Book Description
The aim of this textbook is to give guidance in prevention, lifestyle counselling and rehabilitation for cardiologists, other physicians and many different categories of health professionals in cardiac rehabilitation teams.
Author: Sheri R. Colberg
Publisher: American Diabetes Association
ISBN: 158040507X
Category : Medical
Languages : en
Pages : 554
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Book Description
Physical movement has a positive effect on physical fitness, morbidity, and mortality in individuals with diabetes. Although exercise has long been considered a cornerstone of diabetes management, many health care providers fail to prescribe it. In addition, many fitness professionals may be unaware of the complexities of including physical activity in the management of diabetes. Giving patients or clients a full exercise prescription that take other chronic conditions commonly accompanying diabetes into account may be too time-consuming for or beyond the expertise of many health care and fitness professionals. The purpose of this book is to cover the recommended types and quantities of physical activities that can and should be undertaken by all individuals with any type of diabetes, along with precautions related to medication use and diabetes-related health complications. Medications used to control diabetes should augment lifestyle improvements like increased daily physical activity rather than replace them. Up until now, professional books with exercise information and prescriptions were not timely or interactive enough to easily provide busy professionals with access to the latest recommendations for each unique patient. However, simply instructing patients to “exercise more” is frequently not motivating or informative enough to get them regularly or safely active. This book is changing all that with its up-to-date and easy-to-prescribe exercise and physical activity recommendations and relevant case studies. Read and learn to quickly prescribe effective and appropriate exercise to everyone.
Author: Michael Makela
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Cardiometabolic diseases such as diabetes and cardiovascular disease are a growing threat to the quality of life of the population. Exercise is a frontline approach to treat and prevent cardiometabolic disease and its associated risk factors. The majority of individuals, however, are physically inactive and fail to meet weekly physical activity guidelines primarily due to time-constraints. High-intensity interval training (HIIT) is a time-efficient method of exercise for improving physical fitness and reducing cardiometabolic risk factors compared to moderate-intensity continuous training (MICT). Recent research indicates that the number of repetitions and duration of high-intensity intervals can be reduced without attenuation of health benefits. This study recruited nine physically inactive but otherwise healthy participants (6 female, 3 male) which engaged in a 6 week reduced-exertion HIIT protocol. Participants were assessed before and after a 2 week run-in period, and again upon completion of the exercise protocol to assess the effect on predicted aerobic capacity (VO2max), resting heart rate (HR), resting blood pressure, heart rate variability (HRV), fasting blood glucose, peak power, mean power, body mass, and body fat %. Participants improved predicted VO2max F(2,16)=6.33, p=.009, peak power F(2,16)=10.84, p=.001, and mean power F(2,16)=20.87, p=.00006, but no changes were observed in body mass, body fat %, resting HR, resting blood pressure, resting HRV, and fasting blood glucose. In conclusion, a reduced-exertion HIIT protocol with minimal time-commitment improved predicted VO2max, peak power, and mean power and is a time-efficient alternative or adjunct method of exercise for eliciting health benefits in physically inactive individuals.
Author: Leonardo Roever
Publisher: Frontiers Media SA
ISBN: 2832513468
Category : Medical
Languages : en
Pages : 223
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Book Description
Author: Nicole Joyce Somerville
Publisher:
ISBN:
Category : Cardiovascular fitness
Languages : en
Pages : 280
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Book Description
Introduction: Exercise training is an effective strategy for improving cardiovascular disease (CVD) risk factors. However, it is unclear whether high-intensity training is more effective than moderate-intensity training in improving maximal oxygen uptake (VO2max) and insulin resistance, when weekly exercise volume is matched. Aim: To determine the effect of exercise training intensity when exercise volume is controlled on VO2max and insulin resistance. Secondary outcomes include traditional (blood pressure, waist circumference, blood lipids) and non-traditional (C-reactive protein) CVD risk factors. Methods: Sedentary adults at moderate risk of CVD were randomised into one of four groups: high volume moderate intensity (HVMI, n = 15), high volume high intensity (HVHI, n = 14), low volume moderate intensity (LVMI, n = 15) and sedentary control (n = 13). Only HVMI, HVHI and controls were examined in this thesis. Exercise groups completed 12 weeks of training at a target intensity of either 50% (HVMI) or 80% of VO2 reserve (HVHI), with the target volume of exercise prescribed relative to body mass (16 kcal·kg-1·week-1) split evenly over four weekly exercise sessions. Linear regression models, which controlled for age and gender, were used to determine the effect of exercise training intensity on the mean change in primary and secondary outcomes over 12 weeks. Results: The mean increase in VO2max was significantly greater in HVMI compared to HVHI (p = 0.042) and control (p = 0.041). The change in insulin resistance and secondary outcomes were not different among groups (p30.8). Conclusions: Over 12 weeks, moderate intensity exercise training was more beneficial than high intensity training in improving VO2max; however, no other significant intensity-related effects were observed for any other CVD risk factors.
Author: Marc-Antoine Custaud
Publisher: Frontiers Media SA
ISBN: 2889748081
Category : Science
Languages : en
Pages : 302
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Book Description
Author: Jacalyn J. Robert-McComb
Publisher: Springer Nature
ISBN: 3031154851
Category : Medical
Languages : en
Pages : 621
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Book Description
Now in a revised and expanded third edition, the aims of The Active Female are threefold: first, to increase the awareness of wellness and fitness issues for active females and their family members; second, to provide an avenue for medical practitioners, allied health professionals, health educators/providers, and certified individuals in sports medicine/athletics to gain critical, updated knowledge of a field specific to active females; and third, to introduce the concept of obesity as a growing health concern even for normal weight individuals. Part I of the book offers a foundation for understanding the interrelationships between female physiology, body image and other psychological issues, the female reproductive cycle, and the musculoskeletal anatomy and physiology of females that makes their health risks and concerns unique. In Part II, the concepts of eating disorders from a global perspective and the health disparities and inequities in women’s health are discussed in detail. Part III describes the prevention and management of common musculoskeletal injuries in active females across the lifespan, including the management of osteoporosis. Appropriate exercise and nutritional guidelines and recommendations for active females are discussed in detail in Parts IV and V. Part VI is a new addition to the book and highlights the obesity epidemic and co-morbid diseases associated with obesity even for normal weight obese individuals. Each chapter is bookended by clear learning objectives and review questions for additional pedagogical appeal. An invaluable addition to the literature, The Active Female: Health Issues throughout the Lifespan, 3e will be of great interest to all clinicians and allied health care professionals concerned with women’s health and related issues, from sports medicine and family practitioners to endocrinologists, gynecologists and orthopedic surgeons.
Author: Laursen, Paul
Publisher: Human Kinetics
ISBN: 1492552127
Category : Sports & Recreation
Languages : en
Pages : 672
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Book Description
The popularity of high-intensity interval training (HIIT), which consists primarily of repeated bursts of high-intensity exercise, continues to soar because its effectiveness and efficiency have been proven in use by both elite athletes and general fitness enthusiasts. Surprisingly, few resources have attempted to explain both the science behind the HIIT movement and its sport-specific application to athlete training. That’s why Science and Application of High-Intensity Interval Training is a must-have resource for sport coaches, strength and conditioning professionals, personal trainers, and exercise physiologists, as well as for researchers and sport scientists who study high-intensity interval training.
Author: Linda S. Pescatello
Publisher: Springer
ISBN: 3319170767
Category : Medical
Languages : en
Pages : 347
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Book Description
As the first primer on the effects of exercise on human hypertension, Effects of Exercise on Hypertension: From Cells to Physiological Systems provides the state-of-the-art effects of exercise on the many possible mechanisms underlying essential hypertension in humans. The book contains chapters by distinguished experts on the effects of exercise on physiological systems known to be involved in hypertension development and maintenance as well as less well known aspects of hypertension such as 24-hour ambulatory blood pressure profile and oxidative stress. An emerging area, the effects of resistance exercise training on blood pressure is also covered. A unique aspect of the book is that it covers the effects of exercise mimetics on vascular cell adaptations in order to begin to elucidate some of the cellular mechanisms that may underlie blood pressure reductions with exercise training. Lastly, the book will end with a chapter on the interactive effects of genes and exercise on blood pressure. Chapters are grouped by physiological system or mechanism. The text begins with two overview chapters; one on the general effects of aerobic exercise training and the second on the general effects of resistance exercise training on blood pressure. Each chapter begins with a bulleted list of key points. Effects of Exercise on Hypertension: From Cells to Physiological Systems will be of great value to professional individuals in cardiovascular medicine, the cardiovascular sciences, allied health care professionals, and medical and graduate students in the cardiovascular sciences and medicine.
