The Acute Physiological Effects of Interval Versus Steady-state Exercise PDF Download
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Author: Sarah E. Horlitz
Publisher:
ISBN:
Category : Cycling
Languages : en
Pages : 80
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Book Description
This study was designed to evaluate the exercise intensity and energy expenditure of interval exercise compared to steady-state exercise on a cycle ergometer. Fourteen subjects completed a VO2max test on a cycle ergometer to determine their aerobic capacity. Subjects then completed an interval ride and a steady-state ride. The interval ride alternated one minute of high-intensity cycling at 90% of maximal power output followed by one minute of active rest for 20 minutes. The steady-state ride consisted of 20 minutes exercise at 90% of the subject's ventilatory threshold (VT). Total work was matched between conditions. Oxygen consumption (V02), heart rate (HR), lactate, and RPE values were measured. After completion of both trials, a post-exercise questionnaire was administered. No significant difference (p
Author: Sarah E. Horlitz
Publisher:
ISBN:
Category : Cycling
Languages : en
Pages : 80
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Book Description
This study was designed to evaluate the exercise intensity and energy expenditure of interval exercise compared to steady-state exercise on a cycle ergometer. Fourteen subjects completed a VO2max test on a cycle ergometer to determine their aerobic capacity. Subjects then completed an interval ride and a steady-state ride. The interval ride alternated one minute of high-intensity cycling at 90% of maximal power output followed by one minute of active rest for 20 minutes. The steady-state ride consisted of 20 minutes exercise at 90% of the subject's ventilatory threshold (VT). Total work was matched between conditions. Oxygen consumption (V02), heart rate (HR), lactate, and RPE values were measured. After completion of both trials, a post-exercise questionnaire was administered. No significant difference (p
Author: Michelle M. Harbin
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 96
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Book Description
The aim of this study was to investigate the correlation between improvements in aerobic and anaerobic power with various acute physiological responses, including blood lactate accumulation (HLa), percent heart rate reserve (%HRR), Rating of Perceived Exertion (RPE), session RPE (sRPE), and the training impulse (TRIMP) during high intensity interval training (HIIT) compared to moderate intensity interval training and continuous training. Fifty-five subjects aged 18 to 29 completed a pre and post VO2max and Wingate test on the cycle ergometer. Subjects completed 24 sessions of either a steady-state exercise control at 90% of the power output (PO) at the ventilatory threshold (VT), a Meyer interval protocol with 30:60 seconds exercise-to-rest ratio at 100% of peak power output (PPO), or a Tabata interval protocol with 20:10 seconds exercise-to-rest ratio at 170% of VO2max.
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: Michitoshi Inoue
Publisher: Springer Science & Business Media
ISBN: 4431683674
Category : Medical
Languages : en
Pages : 330
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Book Description
Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.
Author: Courtney Verona Farland
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 64
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Book Description
Introduction: High intensity interval training (HIIT) has become an increasingly popular exercise phenomenon due to its cardiovascular effect and short duration. The purpose of this study was to compare the effects of two HIIT protocols and a steady-state protocol on aerobic capacity following an 8-week training period. Methods: Fifty-five untrained college-aged subjects (17 male, 38 female) were randomly assigned to one of the three training groups (steady-state, Tabata, or Meyer). The steady-state group (n=19) completed 20 minutes of exercise at 90% of ventilatory threshold. The Tabata group (n=21) completed eight intervals of 20 seconds at 170% VO2max, with 10 seconds rest in between each bout. The Meyer group (n=15) completed 13 sets of 30 seconds at 100% of the PPO at VO2max, with 60 seconds of active rest, yielding an output average of 90% of ventilatory threshold. Each subject completed 24 training sessions. Results: Significant increases in VO2max and Peak Power Output for each training group, with no significant differences between groups. There were no significant changes in maximal HR for any training group over the course of the study. The results of this study suggest that steadystate, Tabata, and Meyer protocols elicit similar increases in aerobic capacity.
Author: Brianna Roberts
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 78
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Book Description
High intensity interval training has become popular to produce various physiological benefits. There is much controversy over what type of interval training has the greatest effects. Purpose: This study was designed to compare high intensity interval groups to examine levels of post-exercise hypotension (PEH). Methods: Young, healthy volunteers (N=55) performed 24 workout sessions on a stationary bike over an 8 week period. Subjects were randomly placed into three different exercise groups: Tabata, Meyer, and steady state. Tabata (N=21) performed 20 seconds at 170% power output (PO) of VO2 max and 10 second rest for 8 bouts. Meyer (N=15) performed 30 seconds at 100% PO of VO2 max, with 60 seconds active recovery, for a total of 20 minutes. Steady state (N=19) performed 20 minutes of exercise at 90% ventilatory threshold (VT). Blood pressures were measured once a week and multiple times during those sessions. Measurements of PEH were taken 30 minutes after exercise. Results: There were significant differences in systolic blood pressure (SBP) between pre- and post-exercise but no significant differences between the three exercise groups. Averaged over eight weeks, steady state had PEH of 9.1 + 2.17, Meyer showed PEH of 8.3 + 1.83 while Tabata had PEH of 9.1 + 1.55. There was no significant difference in PEH between the weeks. Conclusions: Through this study, we have concluded that PEH occurs in SBP 30 minutes after exercise, regardless of exercise intensity. During the eight week training, PEH remained constant. Previous findings have concluded similar results, including studies involving blood pressure medication.
Author: Sébastien Leroux
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The purpose of the study was to determine whether steady state exercise (SSE) or high intensity interval exercise (HIIE) would better improve energy expenditure (EE) during 90 minutes of excess post exercise oxygen consumption (EPOC) while attempting to match EE between both exercise protocols. We also wanted to examine physiological changes during post exercise measurements, which included VO2, RER, VE and HR. Twelve males aged between 19 and 24 were assigned to the SSE and HIIE conditions. A VO2max and a 30s-all-out sprint set at 150% of maximum workload was performed on a cycling ergometer interspersed by 5 minutes to ensure sufficient recovery time. Participants randomly completed SSE or HIIE followed by 90 minutes of EPOC. A gross efficiency (GE) of 18% was used in order to best quantify the anaerobic attributable EE during the HIIE in order to estimate total EE. Our results indicate that the HIIE expended less EE than SSE and from our pre-test EE estimations (p
Author: Erin Gordon
Publisher:
ISBN:
Category : Anxiety
Languages : en
Pages : 88
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Book Description
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.
Author: Committee on Military Nutrition Research
Publisher: National Academies Press
ISBN: 0309556775
Category : Technology & Engineering
Languages : en
Pages : 585
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Book Description
This book reviews the research pertaining to nutrient requirements for working in cold or in high-altitude environments and states recommendations regarding the application of this information to military operational rations. It addresses whether, aside from increased energy demands, cold or high-altitude environments elicit an increased demand or requirement for specific nutrients, and whether performance in cold or high-altitude environments can be enhanced by the provision of increased amounts of specific nutrients.
