Download or read book Cardiovascular Responses to Sustained Isometric Exercise written by Alexander Victor Ng and published by . This book was released on 1990 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Responses to Exercise written by Lusha Xiang and published by Biota Publishing. This book was released on 2011-09-01 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exercise is the act of increasing metabolic rate for the purpose of enhancing physical fitness. Exercise can be one of the most stressful physiological responses that the body undertakes. With exercise, there are increases in metabolic rate, heart rate, blood flow (hyperemia), respiration, and heat production. The increased metabolic requirement during exercise is well met by an increased blood flow (functional hyperemia) and oxygen supply to the exercising tissue, which is regulated by multiple local and systemic mechanisms. The local mechanisms (factors) are responsible for mediating the muscle homeostasis and vascular conductance to match the increased metabolic requirement, whereas the systemic mechanisms are responsible for the maintenance of blood pressure and global cardiovascular homeostasis, including the increase in and redistribution of cardiac output, which is mainly mediated by sympathetic activation. For instance, the substantial decreases in vascular resistance and resultant large increase in blood flow during exercise require higher blood pressure and more cardiac output, such that the metabolically active muscle can be perfused with adequate blood flow. This book will provide an overview of the cardiovascular responses to exercise under physiological conditions as well as some pathological circumstances. Table of Contents: Capillary Perfusion in Skeletal Muscle During Exercise / Local Control of Arteriolar Diameter and Blood Flow During Exercise / Systemic Control of Cardiovascular Response to Exercise / Cardiovascular Response to Exercise under Pathological Conditions / References / Author Biography
Download or read book Cardiovascular Responses to Sustained Isometric Work in a Hot Environment written by Joseph Iacobellis and published by 1977.. This book was released on 1977 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Responses to Sustained Isometric Work in a Hot Environment written by Joseph Iacobellis and published by . This book was released on 1977 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Responses to Exercise written by Lusha Xiang and published by Biota Publishing. This book was released on 2016-12-01 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exercise is the act of increasing metabolic rate for the purpose of enhancing physical fitness. Exercise can be one of the most stressful physiological responses that the body undertakes. With exercise, there are increases in metabolic rate, heart rate, blood flow (hyperemia), respiration, and heat production. The increased metabolic requirement during exercise is well met by an increased blood flow (functional hyperemia) and oxygen supply to the exercising tissue, which is regulated by multiple local and systemic mechanisms. The local mechanisms (factors) are responsible for mediating the muscle homeostasis and vascular conductance to match the increased metabolic requirement, whereas the systemic mechanisms are responsible for the maintenance of blood pressure and global cardiovascular homeostasis, including the increase in and redistribution of cardiac output, which is mainly mediated by sympathetic activation. For instance, the substantial decreases in vascular resistance and resultant large increase in blood flow during exercise require higher blood pressure and more cardiac output, such that the metabolically active muscle can be perfused with adequate blood flow. This book will provide an overview of the cardiovascular responses to exercise under physiological conditions as well as some pathological circumstances.
Download or read book Cardiovascular Responses to Isometric Exercise of Constant Force Or Constant EMG Activity written by Corinne Felicia Boettger and published by . This book was released on 1998 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cardiovascular system has feedforward and feedback systems regulating cardiovascular responses. It is uncertain whether these responses are dependent upon muscle mass, fatigue, or force. To determine whether cardiovascular responses to isometric exercise of a given relative force are dependent upon the mass of muscle, 20 college-aged subjects performed four 5-minute bouts of exercise. Isometric exercise with the forearm and the quadriceps at 20% MVC was performed, maintaining constant force (CF) or constant EMG activity (CE). CE represents constant central command (CC) and that CF represents increasing muscle activity, or CC. Force and EMG activity were visually displayed on a monitor. Heart rate (HR), mean arterial pressure (MAP), calf blood flow (CBF), and calf vascular conductance (CVC) wereassessed.
Download or read book Cardiovascular Responses to Sustained Isometric Force Production of the Finger Flexor and Knee Extensor Muscle Groups in Weight trained and Untrained Young Men written by Brain Timothy Patrick and published by . This book was released on 1992 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this study was to investigate whether the cardiovascular responses to isometric force production differed significantly between weight-trained and untrained men. Thus, the cardiovascular responses to sustained isometric force production were investigated in 17 weight-trained (age = 23.5 $pm$ 2.9 yrs.) and 17 untrained (age = 25.8 $pm$ 4.1 yrs.) healthy, young men. Systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), and stroke volume (SV) were measured, with the subject sitting, every 30 seconds during one minute of rest, during isometric force production at 40% of maximal force production by the right finger flexors (FF) and right knee extensors (KE) to muscle fatigue, and during one minute of recovery. Moreover, mean arterial blood pressure (MAP = SBP $-$ DBP/3 + DBP), cardiac output (CO = HR $times$ SV), and total peripheral resistance (TPR = MAP/CO) were derived for each recording period. Multivariate analysis of variance (MANOVA) was used to statistically analyze the significance (p $le$.05) of the mean differences between subject groups (weight-trained and untrained) and muscle groups (finger flexors and knee extensors) for the changes in the dependent variables, from rest to 30 seconds of sustained isometric force production, and from rest to fatigue. The changes in blood pressures, HR, and SV, from rest to 30 seconds of isometric force production were not significantly different between weight-trained and untrained subjects; however, changes in CO were significantly greater while changes in TPR were significantly smaller in the weight-trained compared to the untrained men. Changes from rest to fatigue in blood pressure were not significantly different between subject groups. However, the changes in CO, from rest to fatigue, were significantly larger while the changes in TPR were significantly smaller in the weight-trained compared to the untrained subjects during both finger flexion and knee extension exercises. The differences in CO and TPR responses between subject groups might indicate differences in the neural mechanisms which regulate the cardiovascular responses to sustained isometric force production. The changes in blood pressure, HR, and CO, from rest to 30 seconds of sustained isometric force production, were significantly greater during knee extension compared to finger flexion; however, at fatigue, only the changes in HR and CO were significantly different (KE $>$ FF) between tasks. The differences between tasks in the HR and CO responses to sustained isometric force production might be due to differences in the amount of active muscle mass, and thus, differences in the blood flow requirements.
Download or read book Isometric Exercise and Its Clinical Implications written by Jerrold Scott Petrofsky and published by Charles C. Thomas Publisher. This book was released on 1982 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Responses to Voluntary and Nonvoluntary Combination Isometric Exercise of the Quadriceps Musculature written by Brian Allen Thompson and published by . This book was released on 1994 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Response to Isometric Exercise in Men and Women written by Linda Ruble Davrath and published by . This book was released on 1993 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static Isometric Exercise written by Harry S. Moss Heart Center and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Isometric Training on Cardiovascular Responses to Aerobic Exercise written by Jill Marie Dansand and published by . This book was released on 1998 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static isometric Exercise written by and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static isometric Exercise written by Jere H. Mitchell and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cardiovascular Responses to Isometric Contractions of the Forearm in Humans written by Lynn Coburn and published by . This book was released on 1977 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Role of Muscle Afferents in the Cardiovascular Response to Isometric Exercise in Humans written by James Patrick Fisher and published by . This book was released on 2004 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Static isometric Exercise written by Jere Holloway Mitchell and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
