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Cardiopulmonary exercise testing

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https://www.readbyqxmd.com/read/29351473/sympathetically-mediated-cardiac-responses-to-isolated-muscle-metaboreflex-activation-following-exercise-are-modulated-by-body-position-in-humans
#1
André L Teixeira, Mauricio Daher, Mayara Souza, Plinio Santos Ramos, James P Fisher, Lauro C Vianna
Isolated muscle metaboreflex activation with post-handgrip exercise ischemia (PEI) increases sympathetic nerve activity and partially maintains the exercise-induced increase in blood pressure, but a smaller heart rate (HR) response occurs. The cardiopulmonary baroreceptors, mechanically sensitive receptors that respond to changes in central blood volume and pressure, are strongly associated with changes in body position and upon activation elicit reflex sympathoinhibition. Here, we tested the hypothesis that postural changes modulate the sympathetically-mediated cardiac response to PEI in humans...
December 15, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29349618/respiratory-training-late-after-fontan-intervention-impact-on-cardiorespiratory-performance
#2
Lamia Ait Ali, Alessandro Pingitore, Paolo Piaggi, Fabio Brucini, Mirko Passera, Marco Marotta, Alessandra Cadoni, Claudio Passino, Giosuè Catapano, Pierluigi Festa
Fontan palliation allows patients with "single ventricle" circulation to reach adulthood with an acceptable quality of life, although exercise tolerance is significantly reduced. To assess whether controlled respiratory training (CRT) increases cardiorespiratory performance. 16 Adolescent Fontan patients (age 17. 5 ± 3.8 years) were enrolled. Patients were divided into CRT group (n = 10) and control group (C group, n = 6). Maximal cardiopulmonary test (CPT) was repeated at the end of CRT in the CRT group and after an average time of 3 months in the C group...
January 19, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29349536/oxygen-uptake-efficiency-slope-and-prediction-of-post-operative-morbidity-and-mortality-in-patients-with-lung-cancer
#3
Sertaç Yakal, Sevtün Sofyalı, Berker Özkan, Safinaz Yıldız, Alper Toker, Erdem Kasikcioglu
OBJECTIVE: Peak oxygen consumption is a very valuable cardiopulmonary functional parameter in pre-operative evaluation of patients with lung cancer. However, it has several critical limitations for operability decision due to failure in achieving maximal level of exercise test for cases. The aim of this study was to reveal the importance of more accurate cardiopulmonary parameters that can be calculated from data of submaximal level test, such as oxygen uptake efficiency slope (OUES) and to determine whether it could be used in the operability decision phase for borderline cases by means of morbidity and mortality...
January 18, 2018: Lung
https://www.readbyqxmd.com/read/29346167/new-reference-values-for-cardiopulmonary-exercise-testing-in-children
#4
Joel Blanchard, Samuel Blais, Philippe Chetaille, Michele Bisson, François P Counil, Thelma H Girard, Jade Berbari, Pierre Boulay, Frederic Dallaire
INTRODUCTION: Cardiopulmonary exercise testing (CPET) is an essential tool to assess cardiorespiratory fitness (CRF) in children. There is a paucity of adequate pediatric reference values that are independent of body size and pubertal stage. The purpose of this study is to provide Z score equations for several maximal and sub-maximal CRF parameters derived from a prospectively recruited sample of healthy children. METHODS: In this cross-sectional multicenter study, we prospectively recruited 228 healthy children aged 12 to 17 years old in local schools...
January 17, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29345858/cardiopulmonary-fitness-is-strongly-associated-with-body-cell-mass-and-fat-free-mass
#5
Armin Köhler, Ryan King, Martin Bahls, Stefan Groß, Antje Steveling, Simone Gärtner, Sabine Schipf, Sven Gläser, Henry Völzke, Stephan B Felix, Marcello Ricardo Paulista Markus, Marcus Dörr
BACKGROUND: Peak oxygen uptake (VO2peak) is commonly indexed by total body weight (TBW) to determine cardiopulmonary fitness (CPF). This approach may lead to misinterpretation, particularly in obese subjects. We investigated the normalization of VO2peak by different body composition markers. METHODS: We analyzed combined data of 3,848 subjects (1,914 women; 49.7%), aged 20-90, from two independent cohorts of the population-based Study of Health in Pomerania (SHIP-2 and SHIP-TREND)...
January 18, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29342474/the-importance-of-quality-of-life-for-work-outcomes-in-patients-with-ankylosing-spondylitis-a-cross-sectional-study
#6
Burcu Taser, Fikriye Figen Ayhan, Pinar Borman
AIMS: Work impairment is one of the most important exploration and one of the aims of rheumatologists. We aimed to determine the risk factors for employment state and predictive factors of work outcomes using multi-dimensional measures in patients with ankylosing spondylitis (AS) in this comprehensive study. METHODS: One hundred patients with AS (31 females and 69 males) were included into this study. Demographic properties, local factors, disease activity (BASDAI), functionality (BASFI), spinal mobility (BASMI), radiologic stage (BASRI), quality of life (AS-QoL), cardiopulmonary involvement, exercise stress test and work outcomes were investigated and compared in employed and un-employed patients...
October 2017: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/29339921/cardiopulmonary-exercise-test-and-pao2-in-evaluation-of-pulmonary-hypertension-in-copd
#7
Ingunn Skjørten, Janne Mykland Hilde, Morten Nissen Melsom, Jonny Hisdal, Viggo Hansteen, Kjetil Steine, Sjur Humerfelt
Background: Exercise tolerance decreases as COPD progresses. Pulmonary hypertension (PH) is common in COPD and may reduce performance further. COPD patients with and without PH could potentially be identified by cardiopulmonary exercise test (CPET). However, results from previous studies are diverging, and a unified conclusion is missing. We hypothesized that CPET combined with arterial blood gases is useful to discriminate between COPD outpatients with and without PH. Methods: In total, 93 COPD patients were prospectively included...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29338830/application-of-cardiopulmonary-exercise-testing-in-enhanced-recovery-after-surgery
#8
Liang Yan Zhang, Zi Jia Liu, Le Shen, Yu Guang Huang
Enhanced recovery after surgery (ERAS) is a new perioperative concept that aims to reduce perioperative stress response and accelerate rehabilitation of patients through a variety of optimized management. With the wider application of this concept,the effective implementation of ERAS program has become a new challenge. Cardiopulmonary exercise testing (CPET) has shown promising value in the preoperative assessment,perioperative optimization,and postoperative rehabilitation of ERAS. This article reviews the application of CPET in ERAS,with an attempt to provide evidence for more detailed and comprehensive ERAS program...
December 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29331169/the-introduction-of-simple-cardiorespiratory-fitness-testing-in-overweight-obese-type-2-diabetics-a-pilot-study
#9
Ľubica Cibičková, David Karásek, Jiří Lukeš, Norbert Cibiček
BACKGROUND: Low level of cardiorespiratory fitness has been recognized as an important independent and modifiable risk factor of increased morbidity and mortality. However, in standard outpatient settings, patients are not routinely screened for fitness and advantages of such testing for the management of type 2 diabetes have not been defined. Aim To describe the toleration of a fast, simple and practicable fitness test (2-min step-in-place test) by overweight/obese type 2 diabetics and their performance indicated by 2-min step-in-place test score (STS)...
January 14, 2018: Primary Health Care Research & Development
https://www.readbyqxmd.com/read/29330966/static-hyperinflation-is-associated-with-ventilatory-limitation-and-exercise-tolerance-in-adult-cystic-fibrosis
#10
Daniel Stevens
INTRODUCTION: Lung hyperinflation is a potential mechanism limiting exercise tolerance. However, available data on the impact of static hyperinflation on exercise performance in adult cystic fibrosis is lacking. Furthermore, the relative contribution of both static and dynamic hyperinflation to exercise performance is unknown. OBJECTIVES: To determine the impact of static hyperinflation on exercise tolerance and lung dynamics in adult cystic fibrosis. METHODS: Clinical data of 107 adult patients with cystic fibrosis, including pulmonary function, lung volumes, and cardiopulmonary exercise from the Toronto Cystic Fibrosis database were collected and analyzed...
January 13, 2018: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29325367/-effects-of-aerobic-exercise-combined-with-resistance-training-on-the-cardiorespiratory-fitness-and-exercise-capacity-of-patients-with-stable-coronary-artery-disease
#11
S X Liu, Y Y Chen, K L Xie, W L Zhang
Objective: To observe the effects of aerobic exercise combined with resistance training on the cardiorespiratory fitness and exercise capacity of patients with stable coronary artery disease (CAD) . Methods: From June 2014 to December 2015, 73 patients with stable CAD in our department were recruited and randomly assigned to two groups: the control group (n=38) and the exercise group (n=35) . Patients in both groups received conventional medical treatment for CAD and related cardiac health education. While for patients in exercise group, a twelve-week aerobic exercise combined with resistance training program were applied on top of conventional treatment and health education...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29324512/exercise-capacity-in-patients-with-the-total-artificial-heart
#12
Justin M Canada, Ronald K Evans, Antonio Abbate, Ross Arena, Daniel G Tang, Vigneshwar Kasirajan, Keyur B Shah
There is a dearth of information regarding the functional abilities of patients with the total artificial heart (TAH). Increased utilization of the TAH and patient discharge to home with the portable unit necessitates a shift in focus to quality of life, which includes quantifying and ultimately optimizing functional capacity. To date, only single-patient case studies have described the exercise response of the TAH patient. Fourteen patients with the TAH underwent cardiopulmonary exercise testing with concurrent analysis of TAH device function...
January 10, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29321131/efficacy-of-ranolazine-in-patients-with-symptomatic-hypertrophic-cardiomyopathy-the-restyle-hcm-randomized-double-blind-placebo-controlled-study
#13
Iacopo Olivotto, Paolo G Camici, Piera Angelica Merlini, Claudio Rapezzi, Monica Patten, Vicent Climent, Gianfranco Sinagra, Benedetta Tomberli, Francisco Marin, Philipp Ehlermann, Lars S Maier, Alessandra Fornaro, Claudius Jacobshagen, Antonello Ganau, Luciano Moretti, Antonio Hernandez Madrid, Raffaele Coppini, Giorgio Reggiardo, Corrado Poggesi, Francesco Fattirolli, Luiz Belardinelli, Gianfranco Gensini, Alessandro Mugelli
BACKGROUND: The late sodium current inhibitor ranolazine reverses the main electrophysiological and mechanical abnormalities of human hypertrophic cardiomyopathy (HCM) cardiomyocytes in vitro, suggesting potential clinical benefit. We aimed to assess the effect of ranolazine on functional capacity, symptomatic status, diastolic function, and arrhythmias in HCM. METHODS AND RESULTS: In this multicenter, double-blind, phase 2 study, 80 adult patients with nonobstructive HCM (age 53±14 years, 34 women) were randomly assigned to placebo (n=40) or ranolazine 1000 mg bid (n=40) for 5 months...
January 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29320309/isocapnic-buffering-phase-a-useful-indicator-of-exercise-endurance-and-prognosis-in-patients-with-coronary-artery-disease
#14
Yun-Shan Yen, Daniel Chiung Jui Su, Kuo-Shu Yuan, Po-Wei Chen, Julie Chi Chow, Willy Chou
OBJECTIVES: The significance of the isocapnic buffering (IB) phase - the period between the first ventilatory threshold (1stVT) and respiratory compensation point (RCP) - has not been adequately established in patients. This study aimed to determine the clinical significance of the IB phase in coronary artery disease (CAD) patients. METHODS: This retrospective study included data of sixty-two CAD patients after coronary artery bypass graft (CABG) or percutaneous coronary intervention (PCI) performed in a single medical center between 2010-2014...
January 10, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29307865/real-time-analysis-of-the-heart-rate-variability-during-incremental-exercise-for-the-detection-of-the-ventilatory-threshold
#15
Yasuyuki Shiraishi, Yoshinori Katsumata, Taketaro Sadahiro, Koichiro Azuma, Keitaro Akita, Sarasa Isobe, Fumiaki Yashima, Kazutaka Miyamoto, Takahiko Nishiyama, Yuichi Tamura, Takehiro Kimura, Nobuhiro Nishiyama, Yoshiyasu Aizawa, Keiichi Fukuda, Seiji Takatsuki
BACKGROUND: It has never been possible to immediately evaluate heart rate variability (HRV) during exercise. We aimed to visualize the real-time changes in the power spectrum of HRV during exercise and to investigate its relationship to the ventilatory threshold (VT). METHODS AND RESULTS: Thirty healthy subjects (29.1±5.7 years of age) and 35 consecutive patients (59.0±13.2 years of age) with myocardial infarctions underwent cardiopulmonary exercise tests with an RAMP protocol ergometer...
January 7, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29279000/oxygen-uptake-on-kinetics-during-six-minute-walk-test-predicts-short-term-outcomes-after-off-pump-coronary-artery-bypass-surgery
#16
Isadora Salvador Rocco, Marcela Viceconte, Hayanne Osiro Pauletti, Bruna Caroline Matos-Garcia, Natasha Oliveira Marcondi, Caroline Bublitz, Douglas William Bolzan, Rita Simone Lopes Moreira, Michel Silva Reis, Nelson Américo Hossne, Walter José Gomes, Ross Arena, Solange Guizilini
PURPOSE: We aimed to investigate the ability of oxygen uptake kinetics to predict short-term outcomes after off-pump coronary artery bypass grafting. METHODS: Fifty-two patients aged 60.9 ± 7.8 years waiting for off-pump coronary artery bypass surgery were evaluated. The 6-min walk test distance was performed pre-operatively, while simultaneously using a portable cardiopulmonary testing device. The transition of oxygen uptake kinetics from rest to exercise was recorded to calculate oxygen uptake kinetics fitting a monoexponential regression model...
December 26, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29276588/ventilatory-efficiency-and-aerobic-capacity-in-people-with-multiple-sclerosis-a-randomized-study
#17
Stine Maren Riksfjord, Siri Merete Brændvik, Ola D Røksund, Inger-Lise Aamot
Objectives: To assess ventilatory efficiency and aerobic capacity in people with multiple sclerosis and whether treadmill walking or progressive strength training has an effect on these parameters in this population. Methods: In all, 24 adults with multiple sclerosis with an Expanded Disability Status Scale score of ≤6 completed a cardiopulmonary exercise test before and after 8 weeks of exercise. They were randomized to treadmill walking of low-to-moderate intensity (50%-70% of peak heart rate) or progressive strength training (six repetitions × two at 80% of one repetition maximum)...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/29275887/subclinical-hypothyroidism-is-associated-with-adverse-prognosis-in-heart-failure-patients
#18
Yu Sato, Akiomi Yoshihisa, Yusuke Kimishima, Takatoyo Kiko, Shunsuke Watanabe, Yuki Kanno, Satoshi Abe, Makiko Miyata, Takamasa Sato, Satoshi Suzuki, Masayoshi Oikawa, Atsushi Kobayashi, Takayoshi Yamaki, Hiroyuki Kunii, Kazuhiko Nakazato, Takafumi Ishida, Yasuchika Takeishi
BACKGROUND: It is widely recognized that overt hyper- as well as hypothyroidism are potential causes of heart failure (HF). Additionally it has been recently reported that subclinical hypothyroidism (sub-hypo) is associated with atherosclerosis, development of HF, and cardiovascular death. We aimed to clarify the effect of sub-hypo on prognosis of HF, and underlying hemodynamics and exercise capacity. METHODS: We measured the serum levels of thyroid stimulating hormone (TSH) and free thyroxine (FT4) in 1100 consecutive HF patients...
January 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29262409/early-markers-of-cardiovascular-risk-in-autosomal-dominant-polycystic-kidney-disease
#19
Silvia Lai, Daniela Mastroluca, Silvia Matino, Valeria Panebianco, Antonio Vitarelli, Lidia Capotosto, Irene Turinese, Paolo Marinelli, Marco Rossetti, Alessandro Galani, Pia Baiocchi, Anna R D'Angelo, Paolo Palange
BACKGROUND/AIMS: Cardiovascular disease is the most frequent cause of morbidity and mortality in autosomal dominant polycystic kidney disease (ADPKD) patients, often before the onset of renal failure, and the pathogenetic mechanism is not yet well elucidated. The aim of the study was to identify early and noninvasive markers of cardiovascular risk in young ADPKD patients, in the early stages of disease. METHODS: A total of 26 patients with ADPKD and 24 control group, matched for age and sex, were enrolled, and we have assessed inflammatory indexes, mineral metabolism, metabolic state and markers of atherosclerosis and endothelial dysfunction (carotid intima media thickness (IMT), ankle brachial index (ABI), flow mediated dilation (FMD), renal resistive index (RRI), left ventricular mass index (LVMI)) and cardiopulmonary exercise testing (CPET), maximal O2 uptake (V'O2max), and O2 uptake at lactic acid threshold (V'O2@LT)...
December 15, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29260907/morning-bright-light-exposure-has-no-influence-on-self-chosen-exercise-intensity-and-mood-in-overweight-individuals-a-randomized-controlled-trial
#20
Raphael Knaier, Christopher Klenk, Karsten Königstein, Timo Hinrichs, Anja Rossmeissl, Denis Infanger, Christian Cajochen, Arno Schmidt-Trucksäss
Overweight is a worldwide increasing public health issue. Physical exercise is a useful countermeasure. Overweight individuals choose rather low exercise intensities, but especially high exercise intensities lead to higher energy expenditure and show beneficial health effects compared to lower exercise intensities. However, especially in the morning higher exercise intensities are likely to be avoided due to higher subjective effort. Bright light exposure has shown to increase maximum performance. The aim of this study was to investigate if bright light exposure can also increase self-chosen exercise intensity...
December 20, 2017: Chronobiology International
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