Sex-Dependent Associations Between Daily Physical Activity and Leg Exercise Blood Pressure Responses

2011 ◽  
Vol 19 (4) ◽  
pp. 306-321 ◽  
Author(s):  
Joaquin U. Gonzales ◽  
Dustin M. Grinnell ◽  
Martha J. Kalasky ◽  
David N. Proctor
Keyword(s):  
Physical Activity ◽  
Blood Pressure ◽  
Vascular Function ◽  
Daily Physical Activity ◽  
Peak Exercise ◽  
Central Adiposity ◽  
Leg Extension ◽  
Leg Exercise ◽  
Specific Variation ◽  
Blood Pressure Responses

The authors examined interindividual and sex-specific variation in systolic (SBP) and diastolic (DBP) blood pressure responses to graded leg-extension exercise in healthy older (60–78 yr) women (n= 21) and men (n= 19). Maximal oxygen uptake (VO2max), body composition, physical activity (accelerometry), and vascular function were measured to identify predictors of exercise BP. Neither VO2maxnor activity counts were associated with the rise in SBP or DBP during exercise in men. The strongest predictors of these responses in men were age (SBP:r2= .19,p= .05) and peak exercise leg vasodilation (DBP:r2= –.21,p< .05). In women, the modest relationship observed between VO2maxand exercise BP was abolished after adjusting for central adiposity and activity counts (best predictors, cumulativer2= .53,p< .05, for both SBP and DBP). These results suggest that determinants of variation in submaximal exercise BP responses among older adults are sex specific, with daily physical activity influencing these responses in women but not men.

scholarly journals Resistance and aerobic exercise protects against acute endothelial impairment induced by a single exposure to hypertension during exertion

2011 ◽  
Vol 110 (4) ◽  
pp. 1013-1020 ◽  
Author(s):  
Shane A. Phillips ◽  
Emon Das ◽  
Jingli Wang ◽  
Kirkwood Pritchard ◽  
David D. Gutterman
Keyword(s):  
Blood Pressure ◽  
Resistance Exercise ◽  
Aerobic Exercise ◽  
Vascular Function ◽  
Cardiovascular Health ◽  
Weight Lifting ◽  
Acute Hypertension ◽  
Before And After ◽  
Weight Lifters ◽  
Blood Pressure Responses

Resistance and aerobic exercise is recommended for cardiovascular health and disease prevention. However, the accompanying increase in arterial pressure during resistance exercise may be detrimental to vascular health. This study tests the vascular benefits of aerobic compared with resistance exercise on preventing impaired vascular function induced by a single weight lifting session that is associated with acute hypertension. Healthy, lean sedentary (SED) subjects, weight lifters, runners (>15 miles/wk), and cross trainers (chronic aerobic and resistance exercisers), underwent a single progressive leg press weight lifting session with blood pressure measurements. Brachial artery flow-mediated vasodilation (FMD; an index of arterial endothelial function) was determined using ultrasonography immediately before and after weight lifting. Sublingual nitroglycerin (0.4 mg) was used to determine endothelium-independent dilation after weight lifting. All subjects were normotensive with similar blood pressure responses during exercise. Baseline FMD was lower in runners (5.4 ± 0.5%; n = 13) and cross trainers (4.44 ± 0.3%; n = 13) vs. SED (8.5 ± 0.8%; n = 13; P = 0.037). Brachial FMD improved in conditioned weight lifters (to 8.8 ± 0.9%; P = 0.007) and runners (to 7.6 ± 0.6%; P < 0.001) but not cross trainers (to 5.3 ± 0.6%; P = NS) after acute hypertension. FMD was decreased in SED (to 5.7 ± 0.4%; P = 0.019). Dilation to nitroglycerin was similar among groups. These data suggest that endothelial responses are maintained after exposure to a single bout of weight lifting in resistance and aerobic athletes. Resistance and aerobic exercise may confer similar protection against acute vascular insults such as exertional hypertension.

Intestinales Mikrobiom und kardiovaskuläre Erkrankungen

2019 ◽  
Vol 144 (14) ◽  
pp. 957-963
Author(s):  
Hans-Michael Steffen ◽  
Münevver Demir
Keyword(s):  
Physical Activity ◽  
Risk Factors ◽  
Heart Failure ◽  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Vascular Function ◽  
Kardiovaskuläre Erkrankungen ◽  
Intestinal Microbiome ◽  
Current Review

AbstractAging, physical activity, bodyweight and diet are well established risk factors for cardiovascular disease. For all of these factors a great impact on the intestinal microbiome has been described. The current review will discuss available data regarding the role of the gut microbiome in regulating blood pressure, vascular function and its possible contribution to atherosclerosis and heart failure.

Influence of apnea on cardiovascular responses to neck suction during exercise

1996 ◽  
Vol 271 (4) ◽  
pp. H1370-H1374 ◽  
Author(s):  
P. Sundblad ◽  
D. Linnarsson
Keyword(s):  
Blood Pressure ◽  
Arterial Pressure ◽  
Isometric Exercise ◽  
Cardiovascular Effects ◽  
Cardiovascular Responses ◽  
Voluntary Contraction ◽  
Dynamic Exercise ◽  
Residual Capacity ◽  
Leg Exercise ◽  
Blood Pressure Responses

Short-lasting neck suction (NS) is a common method to assess the carotid-cardiac baroreflex, and NS is usually applied during apnea to avoid breath-synchronous variations of heart rate (HR) and blood pressure. We hypothesized that the apnea might provoke cardiovascular effects that could confound the HR and blood pressure responses to NS. HR and blood pressure responses to 10-s trains of 50-mmHg pulses of NS were studied in six male subjects during supine rest, upright rest, isometric arm exercise at 30% of maximal voluntary contraction, and dynamic leg exercise at 100 W in the sitting position. Repeated NS sequences were performed during apnea preceded by a relaxed expiration to functional residual capacity and during eupnea. Initial HR responses to NS were similar during eupnea and apnea in all conditions. However, during isometric and dynamic exercise, recordings made under eupneic and apneic conditions differed during the second half of the NS period. During apneic isometric arm contraction, the elevation of mean carotid distending pressure (MCDP) (arterial pressure at carotid level minus NS pressure) was maintained at a 25-35% higher level than during eupneic isometric exercise over the last half of the NS period. In dynamic exercise, mean arterial pressure and MCDP started to increase after 3-5 s of apneic NS, whereas they were maintained during eupnea. One to three seconds later, HR started to drop markedly in apneic subjects, reaching values 20 beats/min lower than those in eupneic subjects at the end of the NS. We conclude that cardiovascular effects of apnea may appear after only 8 s of apnea in dynamic exercise and therefore could confound responses to NS.

P-46 Effects of increased daily physical activity on blood lipids and blood pressure in older adults

2016 ◽  
Vol 50 (Suppl 1) ◽  
pp. A57-A58 ◽  
Author(s):  
Hyeon-Ki Kim ◽  
Masaki Takahashi ◽  
Masayuki Konishi ◽  
Hiroki Tabata ◽  
Mio Nishimaki ◽  
...  
Keyword(s):  
Physical Activity ◽  
Blood Pressure ◽  
Older Adults ◽  
Blood Lipids ◽  
Daily Physical Activity

scholarly journals Evaluation of intense physical effort in subjects with temporal lobe epilepsy

2009 ◽  
Vol 67 (4) ◽  
pp. 1007-1012 ◽  
Author(s):  
Fabio Camilo ◽  
Fúlvio Alexandre Scorza ◽  
Marly de Albuquerque ◽  
Rodrigo Luiz Vancini ◽  
Esper Abrão Cavalheiro ◽  
...  
Keyword(s):  
Physical Activity ◽  
Blood Pressure ◽  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Healthy Subjects ◽  
Recovery Period ◽  
Physical Effort ◽  
Objective Evidence ◽  
Blood Pressure Responses ◽  
Intensity Of Exercise

People with epilepsy have been discouraged from participating in physical activity due to the fear that it will exacerbate seizures. Although the beneficial effect of aerobic exercise in people with epilepsy, little objective evidence regarding the intensity of exercise has been reported. We investigated the effect of incremental physical exercise to exhaustion in people with epilepsy. Seventeen persons with temporal lobe epilepsy and twenty one control healthy subjects participated in this study. Both groups were submitted to echocolordoppler and electrocardiogram at rest and during physical effort. None of patients reported seizures during physical effort or in the recovery period of ergometric test. Both groups presented physiological heart rate and blood pressure responses during the different stages of the ergometric test. Only few patients presented electrocardiography or echocardiography alterations at rest or during effort. In conclusion, this work suggests that physical effort to exhaustion is not a seizure-induced component.

A high-salt meal does not augment blood pressure responses during maximal exercise

2020 ◽  
Vol 45 (2) ◽  
pp. 123-128 ◽  
Author(s):  
Kamila U. Migdal ◽  
Austin T. Robinson ◽  
Joseph C. Watso ◽  
Matthew C. Babcock ◽  
Jorge M. Serrador ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Cardiovascular Disease ◽  
Maximal Exercise ◽  
Peripheral Resistance ◽  
Plasma Osmolality ◽  
Dynamic Exercise ◽  
High Salt ◽  
Dietary Sodium ◽  
Peak Exercise ◽  
Blood Pressure Responses

Augmented blood pressure (BP) responses during exercise are predictive of future cardiovascular disease. High dietary sodium (Na+) increases BP responses during static exercise. It remains unclear if high dietary Na+ augments BP responses during dynamic exercise. The purpose of this study was to test the hypothesis that an acute high-Na+ meal would augment BP responses during dynamic exercise. Twenty adults (10 male/10 female; age, 26 ± 5 years; BP, 105 ± 10/57 ± 6 mm Hg) were given a high-Na+ meal (HSM; 1495 mg Na+) and a low-Na+ meal (LSM; 138 mg Na+) separated by at least 1 week, in random order. Serum Na+ and plasma osmolality were measured. Eighty minutes following the meal, participants completed a graded-maximal exercise protocol on a cycle ergometer. Heart rate, beat-by-beat BP, cardiac output, total peripheral resistance, and manual BP were measured at rest and during exercise. Both serum Na+ (HSM: Δ1.6 ± 2.0 vs LSM: Δ1.1 ± 1.8 mmol/L, P = 0.0002) and plasma osmolality (HSM: Δ3.0 ± 4.5 vs LSM: Δ2.0 ± 4.2 mOsm/(kg·H2O), P = 0.01) were higher following the HSM. However, the HSM did not augment BP during peak exercise (systolic BP: HSM: 170 ± 23 vs LSM: 171 ± 21 mm Hg, P = 0.81). These findings suggest that an acute high-salt meal does not augment BP responses during dynamic exercise in adults. Novelty The high-salt meal increased serum sodium and plasma osmolality compared with the low-salt meal. The high-salt meal did not augment blood pressure responses during maximal dynamic exercise. This is important as augmented blood pressure responses during exercise put individuals at greater risk for development of cardiovascular disease.

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