The Effects of Isometric Handgrip Exercise on Post-exercise Hypotension, Ambulatory Arterial Blood Pressure and Heart Rate Variability in Individuals Medicated for Hypertension PDF Download
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Author: Cassandra Stiller-Moldovan
Publisher:
ISBN: 9780494736951
Category :
Languages : en
Pages :
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Author: Cassandra Stiller-Moldovan
Publisher:
ISBN: 9780494736951
Category :
Languages : en
Pages :
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Book Description
Author: Jack Plummer Williams
Publisher:
ISBN:
Category : Blood pressure
Languages : en
Pages :
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Book Description
"Arterial blood pressure may decrease below pre-exercise resting levels immediately after both aerobic and dynamic resistance exercise. This response is known as post-exercise hypotension (PEH). The purpose of this study was to determine and compare the blood pressure responses to isometric and dynamic handgrip exercise through two hours following exercise in pre-hypertensive subjects. The isometric protocol consisted of 3 sets of sustained isometric handgrip with the non-dominant arm for 3 minutes at 30% MVC. The dynamic resistance handgrip exercise protocol consisted of 3 sets of 45 rhythmic contractions at 60% MVC with the non-dominant arm for 3 minutes. Neither isometric nor dynamic handgrip exercise significantly lowered post-exercise systolic and/or diastolic blood pressure compared to the control condition."--Abstract from author supplied metadata.
Author: Liisa Wainman
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Hypertension (HTN) is expected to affect approximately 50% of the world's adult population by 2025 and accounts for 10 million deaths worldwide each year. Historically, HTN has been defined as systolic blood pressure (SBP) greater than 140 mmHg and/or diastolic blood pressure (DBP) greater than 90 mmHg. However, it has been recently suggested that the risks of HTN begin at even lower BP levels and in the United States HTN is now defined as ≥130/80 mmHg. HTN increases the presence of many independent risk factors and/or indicators for cardiovascular disease (CVD) such as increased arterial stiffness and reduced cardiovagal baroreflex sensitivity (cvBRS). This study aimed to investigate the minimum training frequency necessary to maintain decreases in BP following an initial 8-week training period by training individuals 0, 1, or 3 times per week for 4 weeks. Sixteen individuals with medicated hypertension (age 65±9 years) were recruited and performed 8 weeks of IHG 3 times per week and were then allocated to one of 3 training frequency groups; 0, 1 or 3 times for a subsequent 4 weeks. Statistically significant decreases in SBP and DBP were observed in all participants following the initial 8-week IHG training program (-9±10mmHg, p=0.004; -5±6mmHg, p=0.006), as well as at 12 weeks (-9±10 p=0.047; -5±7, p=0.051). cvBRS did not demonstrate any significant changes, while carotid-toe pulse wave velocity (ctPWV), a measure of systemic arterial stiffness, demonstrated a significant main effect for time (p=0.002). Post-hoc testing revealed significant decreases in ctPWV at 12 weeks (-1.0±1.1, p=0.002), as well as a significant decrease from 8 to 12 weeks (-0.73±1.1, p=0.017). As for trained limb arterial stiffness, carotid-radial pulse wave velocity (crPWV) demonstrated a significant effect for group (p=0.045) and time (p=0.015). Post-hoc testing revealed that there was no significant difference between groups, however there was a significant decrease in crPWV at 12 weeks (-1.4±1.7, p=0.010). These findings suggest that IHG at a training frequency lower than traditionally prescribed may maintain the decrease in SBP and DBP with the inclusion of improvements in arterial stiffness both systemically and in the trained limb over time. Thus, these results support the prescription of IHG in the treatment of HTN.
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: Christy L. Smelker
Publisher:
ISBN:
Category : Exercise
Languages : en
Pages : 96
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Book Description
Hypertension is a risk factor for heart disease that responds to both acute and chronic exercise. This study evaluates the effects of different exercise intensities on post exercise hypotension in hypertensive subjects. Subjects (N = 10) were healthy, mildly hypertensive individuals. Each performed a maximal test to allow for intensity prescription, then completed four randomly ordered 120min exercise trials and one control trial. The exercise trials consisted of 25 min cycling at 70, 80, 90, or 100% of the V02 at the ventilatory threshold (VT) (e.g. quite easy to rather hard). Blood pressure was measured at 0,30,60,90 and 120 minutes of each trial. There was a significant (~50.05) reduction in systolic blood pressure at 3(~6, 0,90 and 120 min for 100%V f, at 60,90 and 120 min for 90%VT, at 90 and 120 min for 80%VT and at 120 min for 70%VT. There was co change with diastolic blood pressure. Mean arterial pressure was significantly reduced at 60,90 and 120 min for 90%VT and at 60 and 90 min of 100%VT. We conclude that exercise acutely lowers blood pressure in mildly hypertensive individuals and that a higher intensity exercise session may have a greater effect.
Author: Jill A. Roach
Publisher:
ISBN:
Category :
Languages : en
Pages : 163
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Book Description
ABSTRACT: The purpose of this study was to investigate the acute blood pressure and arterial stiffness responses in males with elevated blood pressure or stage 1 hypertension following 12 min bouts of kettlebell exercise (KB) and aerobic exercise (AER) of equal intensity. Each session was completed at an average intensity of 75% of age-predicted maximal heart rate. Subjects (N = 10) were monitored for 60 min post-exercise. Data for systolic blood pressure (SBP), diastolic blood pressure (DBP), central systolic blood pressure (CSBP), central diastolic blood pressure (CDBP), and augmentation index (AIx@75) were collected 5 min, 10 min, 15 min, 30 min, 45 min, and 60 min post-exercise using the SphygmoCor XCEL machine. No significant interactions were found for SBP, DBP, CSBP, CDBP, and AIx@75. However, both exercise conditions resulted in a downward trend for SBP, CSBP, and AIx@75. In conclusion, a short, 12 min bout of KB exercise, matched for intensity, produces similar post-exercise blood pressure and arterial stiffness changes as continuous aerobic exercise in males with elevated or high blood pressure.
Author: Byron Lai
Publisher:
ISBN:
Category :
Languages : en
Pages : 63
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Book Description
BACKGROUND: While exercise is a universal recommendation for long term prevention and/or maintenance of hypertension, less is understood about the immediate effects of blood pressure (BP) following a single bout of exercise, otherwise known as post-exercise hypotension. The purpose of this study is to investigate the effects of a single-bout of ATW and OTW on the magnitude and duration of post-exercise ambulatory BP in people post-stroke. METHODS: 7 people post-stroke participated in a cross-sectional comparative study. Ambulatory BP was monitored for up to eight hours after a bout of aquatic treadmill walking (ATW) and overground treadmill walking (OTW), performed on separate days. Mean systolic and diastolic BP values were compared between both exercise conditions and a day when no exercise was performed (control). RESULTS: Mean ambulatory systolic BP following ATW was reduced by 5% compared to the control day (p
Author:
Publisher:
ISBN:
Category : Medicine
Languages : en
Pages : 1488
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Book Description
Author: Gregory P. Spicer
Publisher:
ISBN:
Category : Aerobic exercises
Languages : en
Pages : 144
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Book Description
ABSTRACT: The purpose of the study was to investigate the acute peripheral and central blood pressure, and arterial stiffness (AIx) responses following an aerobic, resistance, and integrated concurrent exercise session. Ten resistance trained males (M = 20.8±1.69) performed aerobic exercise (AER), resistance exercise (RES), and integrated concurrent exercise (ICE) sessions in random order following familiarization. The AER session consisted of 45 minutes of cycle simulator exercise at 70% HRres, while the RES and ICE sessions consisted of the performance of 5 resistance exercises preceded by two minutes of seated rest or cycle simulator exercise at 70% HRres respectively. Cardiovascular parameters including central and peripheral systolic and diastolic blood pressures (cSBP, cDBP, pSBP, and pDBP respectively) and AIx were collected prior to and 0, 15, 30, 45, and 60 minutes post exercise. Relative to baseline, cSBP was significantly reduced following RES 30, 45, and 60 minutes post exercise and following ICE 15 minutes post exercise (p ≤ .05). Peripheral SBP was significantly reduced following AER 60 minutes post exercise, following RES 15, 30, and 45 minutes post exercise, and following ICE 15 and 45 minutes post exercise (p ≤ .05). Augmentation Index was significantly elevated following RES 0 and 15 minutes post exercise (p ≤ .05) but was not found to significantly increase following AER or ICE. A significant increase in AIx following RES but not ICE indicates the aerobic component of ICE possibly blunted an acute increase in arterial stiffness. In conclusion, AER, RES, and ICE may provide cardiovascular benefits in terms of post exercise hypotension in terms of central and peripheral blood pressure; however, ICE may provide unique benefits including a blunted increase in arterial stiffness relative to RES.
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.
