keyword
MENU ▼
Read by QxMD icon Read
search

resting heart rate

keyword
https://www.readbyqxmd.com/read/29791601/resting-spontaneous-baroreflex-sensitivity-and-cardiac-autonomic-control-in-anabolic-androgenic-steroid-users
#1
Marcelo R Dos Santos, Ana L C Sayegh, Rafael Armani, Valéria Costa-Hong, Francis R de Souza, Edgar Toschi-Dias, Luiz A Bortolotto, Mauricio Yonamine, Carlos E Negrão, Maria-Janieire N N Alves
OBJECTIVES: Misuse of anabolic androgenic steroids in athletes is a strategy used to enhance strength and skeletal muscle hypertrophy. However, its abuse leads to an imbalance in muscle sympathetic nerve activity, increased vascular resistance, and increased blood pressure. However, the mechanisms underlying these alterations are still unknown. Therefore, we tested whether anabolic androgenic steroids could impair resting baroreflex sensitivity and cardiac sympathovagal control. In addition, we evaluate pulse wave velocity to ascertain the arterial stiffness of large vessels...
May 21, 2018: Clinics
https://www.readbyqxmd.com/read/29789692/pulse-pressure-amplification-and-cardiac-autonomic-dysfunction-in-patients-with-type-2-diabetes-mellitus
#2
Ioanna Eleftheriadou, George C Drosos, Anastasios Tentolouris, Konstantonis George, Petros P Sfikakis, Athanasios D Protogerou, Nikolaos Tentolouris
The main aim of this cross-sectional study was to investigate the association between pulse pressure amplification (PPA) and cardiac autonomic activity (baroreflex sensitivity (BRS) and heart rate variability (HRV)) in patients with type 2 diabetes mellitus (T2DM). In addition, we examined the association between cardiac autonomic activity and central hemodynamic parameters that may affect PPA such as augmentation index (AIx), aortic stiffness (pulse wave velocity (PWV)), and common carotid artery stiffness distensibility coefficient (DC)...
May 23, 2018: Journal of Human Hypertension
https://www.readbyqxmd.com/read/29789415/acute-effects-of-different-types-of-resistance-training-on-cardiac-autonomic-modulation-in-copd
#3
Franciele M Vanderlei, Fernando Zandonadi, Fabiano Franciso de Lima, Bruna S A Silva, Ana Paula C F Freire, Dionei Ramos, Ercy Mara C Ramos
BACKGROUND: An exercise modality that has been gaining significant importance in the rehabilitation of subjects with COPD is resistance training. When considering that patients with COPD present alterations in autonomic cardiac modulation caused by the disease itself, it is necessary to investigate the behavior of the autonomic nervous system in relation to this type of exercise. Thus, the objective of this study was to compare the acute effects of resistance training with elastic tubes, elastic bands, and conventional weightlifitng on the behavior of cardiac autonomic modulation in post-exercise recovery in subjects with COPD...
May 22, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29788047/haemodynamics-dyspnoea-and-pulmonary-reserve-in-heart-failure-with-preserved-ejection-fraction
#4
Masaru Obokata, Thomas P Olson, Yogesh N V Reddy, Vojtech Melenovsky, Garvan C Kane, Barry A Borlaug
Aims: Increases in left ventricular filling pressure are a fundamental haemodynamic abnormality in heart failure with preserved ejection fraction (HFpEF). However, very little is known regarding how elevated filling pressures cause pulmonary abnormalities or symptoms of dyspnoea. We sought to determine the relationships between simultaneously measured central haemodynamics, symptoms, and lung ventilatory and gas exchange abnormalities during exercise in HFpEF. Methods and results: Subjects with invasively-proven HFpEF (n = 50) and non-cardiac causes of dyspnoea (controls, n = 24) underwent cardiac catheterization at rest and during exercise with simultaneous expired gas analysis...
May 19, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29782509/maternal-cardiovascular-and-endothelial-function-from-first-trimester-to-postpartum
#5
Vassiliki Kolovetsiou-Kreiner, Manfred Georg Moertl, Ilona Papousek, Karin Schmid-Zalaudek, Uwe Lang, Dietmar Schlembach, Mila Cervar-Zivkovic, Helmut Karl Lackner
OBJECTIVE: To explore noninvasively the complex interactions of the maternal hemodynamic system throughout pregnancy and the resulting after-effect six weeks postpartum. METHODS: Eighteen women were tested beginning at the 12th week of gestation at six time-points throughout pregnancy and six weeks postpartum. Heart rate, heart rate variability, blood pressure, pulse transit time (PTT), respiration, and baroreceptor sensitivity were analyzed in resting conditions...
2018: PloS One
https://www.readbyqxmd.com/read/29782218/postural-control-and-physiological-responses-to-a-simulated-match-in-u-20-judo-competitors
#6
Luis Santos, Javier Fernández-Río, Eliseo Iglesias-Soler, Miguel Blanco-Traba, Markus Due Jakobsen, Vicente González-Díez, Emerson Franchini, Carlos Gutiérrez, Xurxo Dopico-Calvo, Eduardo Carballeira-Fernández, William Amonette, Oscar Suman
The aim was to evaluate the effects of judo combat on the athletes' postural control (PC) and physiological loading before, during and after a simulated match. Seventeen under-20 regional and national level athletes completed one modified 7-min match. At baseline, during the combat (3rd and 7th minutes) and 2-min post-match centre of pressure (CoP) parameters were assessed. Heart rate (HR), blood lactate (BLa) and rating of perceived exertion (RPE) and local RPE (LRPE) were collected. Significant increments were observed in CoP mean positioning and velocity at 3rd and 7th minutes, but the CoP deviation in both axes was unaffected...
May 21, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29781939/order-effects-of-resistance-and-stretching-exercises-on-heart-rate-variability-and-blood-pressure-in-healthy-adults
#7
Gleisson da Silva Araujo, David G Behm, Estêvão Rios Monteiro, Aline Gomes Ferreira de Melo Fiuza, Thiago Matassoli Gomes, Jefferson Macedo Vianna, Michel Silva Reis, Jefferson da Silva Novaes
da Silva Araujo, G, Behm, DG, Monteiro, ER, de Melo Fiuza, AGF, Gomes, TM, Vianna, JM, Reis, MS, and da Silva Novaes, J. Order effects of resistance and stretching exercises on heart rate variability and blood pressure in healthy adults. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to compare the acute effect of different combinations and order of resistance exercise (RE) and stretching exercise (SE) on heart rate variability, systolic blood pressure (SBP), and diastolic blood pressure (DBP)...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781933/repeated-exposure-to-taekwondo-combat-modulates-the-physiological-and-hormonal-responses-to-subsequent-bouts-and-recovery-periods
#8
Craig A Bridge, Andy S Sparks, Lars R McNaughton, Graeme L Close, Matheus Hausen, Jonas Gurgel, Barry Drust
Bridge, CA, Sparks, SA, McNaughton, LR, Close, GL, Hausen, M, Gurgel, J, and Drust, B. Repeated exposure to taekwondo combat modulates the physiological and hormonal responses to subsequent bouts and recovery periods. J Strength Cond Res XX(X): 000-000, 2018-This study examined the physiological and hormonal responses to successive taekwondo combats using an ecologically valid competition time structure. Ten elite male international taekwondo competitors (age 19 ± 3 years) took part in a simulated championship event...
May 17, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29781516/cardiac-autonomic-modulation-and-long-term-use-of-amiodarone-in-patients-with-chronic-chagasic-cardiopathy
#9
Henriette Elana Fortes Silva, Renan Sandoval de Almeida, Danilo Batista Silveira, Maurício Llaguno, Luiz Antônio Pertili Rodrigues Resende, Valdo José Dias da Silva, Dalmo Correia
BACKGROUND: Patients with chronic Chagas cardiopathy (CCC), which may be associated with cardiac arrhythmias, frequently use amiodarone, an anti-arrhythmic drug that, experimentally, appears to modulate the cardiac autonomic function. OBJECTIVE: The present cross-sectional observational study aimed to evaluate autonomic cardiac modulation in patients with CCC undergoing chronic amiodarone therapy. METHODS: Three groups were investigated: Group 1 included patients with CCC not treated with amiodarone (n = 27); Group 2 included patients with CCC with prolonged use (at least 6 months) of amiodarone (n = 16); and Group 3 including non-chagasic control patients (n = 23)...
May 21, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29780604/effect-of-long-term-high-altitude-exposure-on-cardiovascular-autonomic-adjustment-during-rest-and-post-exercise-recovery
#10
Prem Bhattarai, Bishnu H Paudel, Dilip Thakur, Balkrishna Bhattarai, Bijay Subedi, Rita Khadka
Background: Despite the successful adaptation to high altitude, some differences do occur due to long term exposure to the hypoxic environment. The effect of long term high altitude exposure on cardiac autonomic adjustment during basal and post-exercise recovery is less known. Thus we aimed to study the differences in basal cardiac autonomic adjustment and its response to exercise in highlanders and to compare it with lowlanders. Methods: The study was conducted on 29 healthy highlander males who were born and brought up at altitude of 3000 m and above from the sea level, their cardiac autonomic adjustment was compared with age, sex, physical activity and ethnicity-matched 29 healthy lowlanders using Heart Rate Variability (HRV) during rest and recovery from sub-maximal exercise (3 m step test)...
2018: Annals of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29780062/effect-of-chlorella-ingestion-on-oxidative-stress-and-fatigue-symptoms-in-healthy-men
#11
Hirotaka Okada, Noriko Yoshida, Tatsuyuki Kakuma, Kouji Toyomasu
OBJECTIVE: We examined the effects of dietary chlorella ingestion on oxidative stress and fatigue symptoms in healthy men under resting and fatigue conditions. METHOD: We conducted a double-blind, parallel-arm controlled study. Twenty-seven healthy male volunteers (mean age, 35.4±10.4 years) were randomly divided into the chlorella and placebo groups, and received chlorella (6 g/day) and lactose as placebo (7.2 g/day), respectively, for 4 weeks. To simulate mild fatigue, subjects underwent exercise (40% of the heart rate reserve) for 30 minutes...
May 21, 2018: Kurume Medical Journal
https://www.readbyqxmd.com/read/29775547/acute-dietary-nitrate-supplementation-does-not-attenuate-oxidative-stress-or-the-hemodynamic-response-during-submaximal-exercise-in-hypobaric-hypoxia
#12
Colin R Carriker, Paige Rombach, Brooke M Stevens, Roger A Vaughan, Ann L Gibson
PURPOSE: To investigate changes in oxidative stress, arterial oxygen saturation (SaO2), blood pressure (BP), and heart rate (HR) while exercising in hypobaric hypoxia following acute dietary nitrate supplementation. METHODS: Nine well-trained (60.8±7.8 ml/kg/min) males (29±7 years) visited the lab on 3 occasions, each separated by 1 week. Visit 1 included a maximal aerobic cycling test (VO2max) and 5 five-minute increasing intensity exercise bouts in a normobaric environment (1600m)...
May 18, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29775213/individual-specific-qt-interval-correction-for-drugs-with-substantial-heart-rate-effect-using-holter-ecgs-extracted-over-a-wide-range-of-heart-rates
#13
Gopi Krishna Panicker, Pramod Kadam, Saikat Chakraborty, Snehal Kothari, J Rick Turner, Dilip R Karnad
Although fixed QT correction methods are typically used to adjust for the effect of heart rate on the QT interval in thorough QT/QTc studies, individual-specific QT correction (QTcI = QT/RRI ) is advisable for drugs that increase the heart rate by >5 to 10 beats/minute (bpm). QTcI is traditionally derived using resting drug-free electrocardiograms (ECGs) collected at prespecified times. However, the resting heart rate range in healthy individuals is narrow, and extrapolation of inferences from these data to higher heart rates could be inappropriate...
May 18, 2018: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29774407/beta-blockers-and-chronic-heart-failure-patients-prognostic-impact-of-a-dose-targeted-beta-blocker-therapy-vs-heart-rate-targeted-strategy
#14
Anna Corletto, Hanna Fröhlich, Tobias Täger, Matthias Hochadel, Ralf Zahn, Caroline Kilkowski, Ralph Winkler, Jochen Senges, Hugo A Katus, Lutz Frankenstein
BACKGROUND: Beta blockers improve survival in patients with chronic systolic heart failure (CHF). Whether physicians should aim for target dose, target heart rate (HR), or both is still under debate. METHODS AND RESULTS: We identified 1,669 patients with systolic CHF due to ischemic heart disease or idiopathic dilated cardiomyopathy from the University Hospital Heidelberg and the Clinic of Ludwigshafen, Germany. All patients were treated with an angiotensin converting enzyme inhibitor or angiotensin receptor blocker and had a history of CHF known for at least 6 months...
May 17, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29771930/perspectives-of-human-verification-via-binary-qrs-template-matching-of-single-lead-and-12-lead-electrocardiogram
#15
Vessela Krasteva, Irena Jekova, Ramun Schmid
OBJECTIVE: This study aims to validate the 12-lead electrocardiogram (ECG) as a biometric modality based on two straightforward binary QRS template matching characteristics. Different perspectives of the human verification problem are considered, regarding the optimal lead selection and stability over sample size, gender, age, heart rate (HR). METHODS: A clinical 12-lead resting ECG database, including a population of 460 subjects with two-session recordings (>1 year apart) is used...
2018: PloS One
https://www.readbyqxmd.com/read/29771822/pulse-oximetry-and-arterial-oxygen-saturation-during-cardiopulmonary-exercise-testing
#16
Mona Ascha, Anirban Bhattacharyya, Jose A Ramos, Adriano R Tonelli
INTRODUCTION/PURPOSE: Peripheral capillary oxygen saturation (SpO2) is used as surrogate for arterial blood oxygen saturation. We studied the degree of discrepancy between SpO2 and arterial oxygen (SaO2) and identified parameters that may explain this difference. METHODS: We included patients who underwent cardiopulmonary exercise testing (CPET) at Cleveland Clinic. Pulse oximeters with forehead probes measured SpO2 and arterial blood gas (ABG) samples provided the SaO2 both at rest and peak exercise...
April 30, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29769828/the-effect-of-half-time-re-warm-up-duration-on-intermittent-sprint-performance
#17
Takuma Yanaoka, Kyoko Kashiwabara, Yuta Masuda, Jumpei Yamagami, Kuran Kurata, Shun Takagi, Masashi Miyashita, Norikazu Hirose
The purpose of the present study was to investigate the effect of different durations of half-time re-warm up (RW) on intermittent sprint performance. Using a randomized crossover design, 13 healthy men performed three trials, which consisted of two, 40-min intermittent exercises separated by a 15-min half-time. Half-time interventions were 15 min of seated rest (Control), 7 min of cycling at 70% of maximal heart rate (HRmax ) (7 min RW), and 3 min of cycling at 70% of HRmax (3 min RW). The second 40-min intermittent exercise as an exercise performance test was the Cycling Intermittent-Sprint Protocol (CISP), which consisted of 10 s of rest, 5 s of maximal sprint, and 105 s of low-intensity exercise at 50% of VO2max , with the cycles repeated over the 40-min duration...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29769827/effects-of-a-4-week-very-low-carbohydrate-diet-on-high-intensity-interval-training-responses
#18
Lukas Cipryan, Daniel J Plews, Alessandro Ferretti, Phil B Maffetone, Paul B Laursen
The purpose of the study was to examine the effects of altering from habitual mixed Western-based (HD) to a very low-carbohydrate high-fat (VLCHF) diet over a 4-week timecourse on performance and physiological responses during high-intensity interval training (HIIT). Eighteen moderately trained males (age 23.8 ± 2.1 years) consuming their HD (48 ± 13% carbohydrate, 17 ± 3% protein, 35 ± 9% fat) were assigned to 2 groups. One group was asked to remain on their HD, while the other was asked to switch to a non-standardized VLCHF diet (8 ± 3% carbohydrate, 29 ± 15% protein, 63 ± 13% fat) for 4 weeks...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29769147/association-of-pulmonary-cardiovascular-and-hematologic-metrics-with-carbon-nanotube-and-nanofiber-exposure-among-u-s-workers-a-cross-sectional-study
#19
Mary K Schubauer-Berigan, Matthew M Dahm, Aaron Erdely, John D Beard, M Eileen Birch, Douglas E Evans, Joseph E Fernback, Robert R Mercer, Stephen J Bertke, Tracy Eye, Marie A de Perio
BACKGROUND: Commercial use of carbon nanotubes and nanofibers (CNT/F) in composites and electronics is increasing; however, little is known about health effects among workers. We conducted a cross-sectional study among 108 workers at 12 U.S. CNT/F facilities. We evaluated chest symptoms or respiratory allergies since starting work with CNT/F, lung function, resting blood pressure (BP), resting heart rate (RHR), and complete blood count (CBC) components. METHODS: We conducted multi-day, full-shift sampling to measure background-corrected elemental carbon (EC) and CNT/F structure count concentrations, and collected induced sputum to measure CNT/F in the respiratory tract...
May 16, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29768300/the-hemodynamic-response-to-constant-dobutamine-infusion-the-effect-of-adrb1-389-polymorphism-and-sex
#20
Dotan Yogev, Maamoun Basheer, Amichai Perlman, Simcha Blotnick, Yoseph Caraco, Mordechai Muszkat
OBJECTIVES: Prolonged activation of the β-1 adrenergic receptor (ADRB1) is associated with receptor desensitization. This process has been suggested to have important pathophysiological and clinical implications in conditions such as congestive heart failure. The contribution of genetic factors to this process is a patient of ongoing research. We have previously shown that the ADRB1 389 polymorphism affects the response to incremental dose infusion of the ADRB agonist dobutamine. The aim of the current study was to determine whether the ADRB1 389 polymorphism affects the hemodynamic response to constant dose infusion of dobutamine in healthy patients...
June 2018: Pharmacogenetics and Genomics
keyword
keyword
97979
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"