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Author: Kristen Dempsey
Publisher:
ISBN:
Category : Blood pressure
Languages : en
Pages : 136
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Book Description
ABSTRACT: The study was designed to determine the effects of acute resistance exercise on heart rate variability (HRV) and central blood pressure (CBP) in women, specifically during the recovery period. Eight physically active, overweight women with an average body mass index (BMI) of 27.16 ± 1.76 kg/m2, who were also untrained in regards to resistance exercise, participated in the study. Subjects completed three study sessions. During the first session, subject descriptive data was obtained and a familiarization of the resistance protocol was conducted. Sessions two and three consisted of either a control or the total body resistance exercise session. HRV and CBP values were obtained at the beginning of the session and at multiple time points during the recovery time period, totaling 60 min. The primary finding was the significantly decreased HRV component, SDNN (standard deviation of N-N's) for 20 min following acute resistance exercise followed by a return of values back to baseline at the end of recovery. The depression of HRV was expected after resistance exercise, however the current study has demonstrated the extent of the effect of the exercise in untrained, overweight women. Both CBP and peripheral blood pressure did not show significant differences between conditions and time. Post exercise hypotension was expected after exercise, but did not occur in the present study. The current study demonstrated a short effect of acute resistance exercise on HRV, but not blood pressure values. HRV values returned to baseline at the end of recovery.
Author: Kristen Dempsey
Publisher:
ISBN:
Category : Blood pressure
Languages : en
Pages : 136
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Book Description
ABSTRACT: The study was designed to determine the effects of acute resistance exercise on heart rate variability (HRV) and central blood pressure (CBP) in women, specifically during the recovery period. Eight physically active, overweight women with an average body mass index (BMI) of 27.16 ± 1.76 kg/m2, who were also untrained in regards to resistance exercise, participated in the study. Subjects completed three study sessions. During the first session, subject descriptive data was obtained and a familiarization of the resistance protocol was conducted. Sessions two and three consisted of either a control or the total body resistance exercise session. HRV and CBP values were obtained at the beginning of the session and at multiple time points during the recovery time period, totaling 60 min. The primary finding was the significantly decreased HRV component, SDNN (standard deviation of N-N's) for 20 min following acute resistance exercise followed by a return of values back to baseline at the end of recovery. The depression of HRV was expected after resistance exercise, however the current study has demonstrated the extent of the effect of the exercise in untrained, overweight women. Both CBP and peripheral blood pressure did not show significant differences between conditions and time. Post exercise hypotension was expected after exercise, but did not occur in the present study. The current study demonstrated a short effect of acute resistance exercise on HRV, but not blood pressure values. HRV values returned to baseline at the end of recovery.
Author: Quintin Scott
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659283413
Category :
Languages : en
Pages : 52
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Book Description
Arterial stiffness increases cardiovascular disease risk for stroke, myocardial infarction, and mortality. The aim of this study was to examine the influence of resistance exercise intensity on arterial stiffness and blood pressure. Two resistance exercise conditions, low and high intensity, were compared. In a longitudinal, cross-over study design, thirty-two subjects (n=32, 17 male, mean age= 24.6) completed both conditions on separate days. Pulse wave velocity (PWV) was used as a measure of central and peripheral arterial stiffness at baseline, at 15 minutes post, and at 30 minutes post exercise. Central PWV increased in the low mode and returned toward baseline at 30 minutes post-exercise (p
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: Quiona Stephens
Publisher:
ISBN:
Category : African American women
Languages : en
Pages :
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Book Description
Abstract: Exercise training has consistently been shown, in the research literature, to be an effective non-pharmacological alternative to treat hypertension (HTN). However, the underlying mechanism that accounts for the reductive and preventive effects, induced by exercise have not been clearly established. To our knowledge, no study has examined the effect of an aerobic exercise-training program on prehypertension (resting blood pressure between 120/80 - 139/89 mm Hg) and the underlying variables that may exacerbate the disease's development in apparently healthy African American women. Therefore, the aim of the present study was to investigate the effects of a 10-week aerobic exercise-training regimen on total peripheral resistance (TPR), heart rate variability (HRV), and prehypertensive blood pressure status in apparently healthy African American women. Twenty-three prehypertensive African American women served as study participants. Each participant was required to meet all inclusionary criteria which included: being an African American woman between the ages of 30-45 years, a sedentary lifestyle, non-smoking status, body mass index between 25-35 (kg·m[superscript -2]), and a prehypertensive blood pressure status. A VO[subscript 2 peak] and submaximal exercise test were conducted on the cycle ergometer. HRV was assessed using power spectral analys is of beat-to-beat measurements in various frequency domains. Results revealed a significant reduction in TPR in the trained group from pre to post intervention periods (pre 35.3 [plus/minus] 5.1 mm Hg · L · min[superscript -1] vs. post 26.9 [plus/minus] 4.3 mm Hg · L · min [superscript -1]) (p
Author: M. Malik
Publisher: Springer Science & Business Media
ISBN: 9401710570
Category : Medical
Languages : en
Pages : 450
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Book Description
Following systematic development of technical aspects and physiological understanding, and clinical applicability of cardiac autonomic testing, this book provides a detailed guide to performing individual autonomic tests in both research and clinical settings. The book is structured in three parts covering the physiological background of cardiac autonomic regulations, description of technology and interpretation of individual autonomic tests, and applicability of the individual tests under various clinical circumstances and in defined populations of patients. The book is intended to serve both research and clinical cardiologists as well as research and clinical specialists of other medical fields who use the assessment of cardiac modulations to investigate the autonomic nervous system.
Author: Casandra L. Ferriter
Publisher:
ISBN:
Category : Isometric exercise
Languages : en
Pages : 110
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Book Description
ABSTRACT: The study was designed to examine the effects of one bout of acute moderate resistance exercise on arterial stiffness in postmenopausal women. Nine untrained postmenopausal women [age 59.79 ± 6.22, weight 73.89 ± 13.08 kg, height 162.89 ± 6.11 cm, BF% 36.33 ± 8.85%] who had refrained from food and caffeine 4 hr prior to the intervention session and the control session, as well as avoided vigorous exercise 24 hr prior to the intervention session and control session, performed one bout of moderate intensity resistance exercise (70% of 10-RM). The exercises performed involved both the upper body and the lower body; dumbbell (DB) bent-over row, DB chest press, DB bicep curl, DB tricep extension, DB squats, DB Romanian deadlifts (RDLs), DB lunges, and DB calf raises. Measurements of heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), central systolic blood pressure (CSBP), central diastolic blood pressure (CDBP), pulse wave velocity (PWV), and augmentation index (AIx) were taken at baseline after 10 min of supine rest, post exercise, 30 min post exercise, and 60 min post exercise. Heart rate, SBP, CSBP, and CDBP were significantly (p .05) affected by resistance training immediately post-exercise. Pulse wave velocity and AIx were not significantly (p .05) affected by the exercise session. One reason why PWV and AIx, prime measures of arterial stiffness, were not significantly altered may have been the subjects' low exercise intensity. In conclusion, no effects of the exercise were observed in PWV or AIx. However, moderate intensity resistance exercise resulted in post-exercise hypotension in postmenopausal women which may be valuable information for future research.
Author: Costantino Balestra
Publisher: Frontiers Media SA
ISBN: 2889457400
Category :
Languages : en
Pages : 229
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Book Description
Understanding how humans cope in extreme environments has expanded our knowledge of the physiological and psychological challenges involved and helped us to quit our comfortable paradigms built on “steady states”. Furthermore, measuring our reactions to intermittent stressors and determining the oscillations of our coping mechanisms has led us to unexpected understandings. This methodology has also directly improved our translational or multidisciplinary approach to the subject. Studying healthy individuals in extreme environments could improve our understanding of patients with impaired physiological capacities (who are coping with an environment that becomes extreme to them) and also improve our understanding of physiology and psychology in the elderly.This eBook collects articles that address this translational multidisciplinary approach in an integrative way. As a whole, this Research Topic aims to better understand human/animal physiology and psychology.
Author: Erica M. Marshall
Publisher:
ISBN:
Category : Cardiovascular fitness
Languages : en
Pages : 141
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Book Description
The purpose of the present study was to determine if unilateral upper-body acute RE [resistance exercise] would attenuate alterations in measures of cardiovascular function compared to bilateral upper-body acute RE. Twenty moderately active individuals completed upper-body maximal strength testing followed by two acute RE sessions. Measures of hemodynamics, autonomic modulation, central arterial stiffness, pulse wave reflection, and baroreflex sensitivity were measured at Rest and at 10- and 30-minutes during recovery. Interestingly, there were no significant condition by time interactions for any variable. Still, measures of hemodynamics, autonomic modulation, central arterial stiffness, pulse wave reflection and baroreflex sensitivity were significantly altered from Rest during recovery from upper-body acute RE. Specifically, the hemodynamic measure heart rate was augmented for at least 30 minutes. These changes were accompanied by alterations in measures of autonomic modulation specific to vagal activity, which were predominantly attenuated for at least 30 minutes. Further, central arterial stiffness was increased and measures of pulse wave reflection in terms of the pulse waveform were also augmented for at least 10 and 30 minutes, respectively. Other pulse wave reflection measures indicative of left ventricular function suggested an increase in myocardial workload and decrease in coronary blood flow for at least 30 minutes. Further, baroreflex sensitivity was reduced for at least 30 minutes. Collectively, this study suggests that unilateral upper-body acute RE does not seem to be an appropriate upper-body acute RE modality to reduce cardiovascular modulation compared to bilateral RE. Nevertheless, both modalities significantly altered cardiovascular function.
Author: Peter Kokkinos
Publisher: Springer
ISBN: 3030048160
Category : Medical
Languages : en
Pages : 442
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Book Description
This book examines the links between physical activity (PA), cardiorespiratory fitness (CRF), and cardiovascular and metabolic diseases. It presents an overview of the role of PA and CRF in the prevention and management of risk factors associated with cardiometabolic diseases such as hypertension, peripheral vascular disease, stroke, type 2 diabetes, metabolic syndrome, dyslipidemia, obesity, and atherosclerosis. In addition, it explores how these risks vary with different populations such as the elderly and people of various racial backgrounds. The book also highlights risks associated with exercise and presents a prescription for appropriate and efficacious exercise to minimize risk and maximize health benefits for the heart. Cardiorespiratory Fitness in Prevention and Management of Cardiometabolic Disease is an essential resource for physicians, exercise physiologists, medical students, residents, fellows, nurses, and researchers in cardiology, cardiorespiratory fitness, exercise science, health promotion and disease prevention, public health, and epidemiology.
Author: Denise L. Smith
Publisher: Human Kinetics
ISBN: 0736073922
Category : Medical
Languages : en
Pages : 242
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Book Description
Advanced Cardiovascular Exercise Physiology details the effect of acute and chronic exercise training on each component of the cardiovascular system and how those components adapt to and benefit from a systematic program of exercise training.
