16,329 results match your criteria Treadmill Stress Testing

A comparison of heat acclimation by post-exercise hot water immersion and exercise in the heat.

J Sci Med Sport 2021 May 18. Epub 2021 May 18.

School of Sport and Exercise Sciences, Liverpool John Moores University, United Kingdom.

Objectives: To compare heat acclimation adaptations after three and six days of either post-exercise hot water immersion (HWI) or exercise-heat-acclimation (EHA) in recreationally active individuals.

Design: Randomised, mixed model, repeated measures.

Methods: Post-exercise HWI involved a daily 40-min treadmill-run at 65% V̇O in temperate conditions (19 °C, 45% RH) followed by HWI (≤40 min, 40 °C water; n = 9). Read More

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Two-minute exercise testing is sufficient to estimate maximal cardiorespiratory fitness in people with epilepsy.

Epilepsy Behav 2021 Jun 7;121(Pt A):108086. Epub 2021 Jun 7.

School of Physical Education, Federal University of Pelotas, Pelotas, Brazil.

We aimed to examine the agreement between submaximal cardiopulmonary exercise testing (CPET) measures and peak oxygen consumption (VO) in adults with epilepsy. Data from a randomized controlled trial with adults with epilepsy (N = 21) were analyzed. VO was assessed using indirect calorimetry during a treadmill graded maximal CPET. Read More

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Walking Exercise Therapy Effects on Lower Extremity Skeletal Muscle in Peripheral Artery Disease.

Circ Res 2021 Jun 10;128(12):1851-1867. Epub 2021 Jun 10.

Division of Intramural Research, National Institute on Aging (L.H., L.F.).

Walking exercise is the most effective noninvasive therapy that improves walking ability in peripheral artery disease (PAD). Biologic mechanisms by which exercise improves walking in PAD are unclear. This review summarizes evidence regarding effects of walking exercise on lower extremity skeletal muscle in PAD. Read More

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Increased body fat content in horses alters metabolic and physiological exercise response, decreases performance, and increases locomotion asymmetry.

Physiol Rep 2021 Jun;9(11):e14824

Department of Equine Science, Hólar University, Sauðárkrókur, Iceland.

This study examined the effect of altered body weight (BW) and body fat content on exercise performance and recovery. Nine horses were divided into two groups, and changes in BW and fat content were induced by feeding a high (HA) or restricted (RA) energy allowance for 36 days in a cross-over design. In the last week of each treatment, BW and body condition score (BCS) were recorded, body fat percentage was estimated using ultrasound, and a standardized incremental treadmill exercise test (SET) and competition-like field test were performed (scored by judges blinded to treatments). Read More

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A randomised, controlled trial to determine the effect of levothyroxine on Standardbred racehorses.

Equine Vet J 2021 Jun 8. Epub 2021 Jun 8.

Department of Veterinary Clinical Sciences, Purdue University College of Veterinary Medicine, West Lafayette, Indiana, 47907, USA.

Background: The use of thyroid supplement is pervasive in athletic horses although its effects on measures of performance are not known.

Objectives: One purpose of this study was to determine whether supra-physiologic doses of levothyroxine affect the velocities at which blood lactate was greater than 4 mmol/L (V ) and heart rate was over 150 (V ) and 200 (V ) beats per minute respectively. Additionally, a survey of post-race blood samples was also conducted to determine whether high thyroxine concentrations were common in racehorses. Read More

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Myocardial strain impairment, heterozygous familial hypercholesterolemia and systemic arterial hypertension: Is there a link?

Int J Cardiol Hypertens 2021 Jun 11;9:100086. Epub 2021 May 11.

Sapienza University, Dept. of Medicine and Cardiology, Via Lima 35, Rome, 00198, Italy.

Dyslipidemia is known as a strong risk factor for premature atherosclerotic cardiovascular disease and increased morbidity and mortality and can have an adverse effect on left ventricular function due to direct or indirect macrovascular and/or microvascular damage. Speckle-tracking echocardiography allows the assessment of subclinical cardiac dysfunction in different diseases on the basis of myocardial deformation indices, and decrease in longitudinal and circumferential strain was shown in patients with heterozygous familial hypercholesterolemia (heFH) without comorbidities. In this issue of the journal a new study presents the results in a well-defined population which included asymptomatic treatment-naive heFH individuals without known coronary/peripheral arterial disease, with normal left ventricular ejection fraction and no other risk factors as formal arterial hypertension or diabetes mellitus. Read More

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Reduced global longitudinal strain at rest and inadequate blood pressure response during exercise treadmill testing in male heterozygous familial hypercholesterolemia patients.

Int J Cardiol Hypertens 2021 Jun 20;9:100083. Epub 2021 Apr 20.

National and Kapodistrian University of Athens, Division of Experimental Surgery, Greece.

Background: Heterozygous familial hypercholesterolemia (heFH) is a genetic disorder leading to premature coronary artery disease (CAD). We hypothesized that the subclinical pathophysiologic consequences of hypercholesterolemia may be detected before the occurrence of clinically overt CAD by stress testing and myocardial strain imaging.

Patients-methods: We evaluated the treadmill tests (ETTs) of 46 heFH men without known arterial hypertension/diabetes mellitus/vasculopathy like CAD and of 39 healthy men matched for age, baseline systolic/diastolic blood pressure (BP) and heart rate (HR), using Bruce protocol. Read More

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Cardiovascular Rehabilitation Increases Walking Distance in Patients With Intermittent Claudication. Results of the CIPIC Rehab Study: A Randomised Controlled Trial.

Eur J Vasc Endovasc Surg 2021 Jun 3. Epub 2021 Jun 3.

Institute of Clinical Medicine, University of Copenhagen, Denmark; The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Denmark.

Objective: To examine whether a cardiac rehabilitation programme in a community based setting for patients with intermittent claudication (IC) affects walking ability, quality of life, and changes in health behaviour. The trial investigated a cross sector cardiovascular rehabilitation programme compared with usual care for patients having non-operative management.

Methods: The trial allocated 118 patients, with 1:1 individual randomisation to either an intervention or control group. Read More

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Supervised exercise therapy, blood pressure and heart rate during exercise, and functional impairment in Peripheral Artery Disease: results of a randomized clinical trial.

J Vasc Surg 2021 Jun 3. Epub 2021 Jun 3.

Northwestern University, Feinberg School of Medicine, Chicago, IL. Electronic address:

Objective: Supervised exercise therapy (SET) improves walking ability in people with peripheral artery disease (PAD). However, the effects of SET on cardiovascular health in PAD remains unclear. Using data from a randomized clinical trial, this post-hoc study investigated the effects of a 6-month SET intervention, compared to a control group, on changes in blood pressure (BP) and heart rate (HR) during a graded treadmill exercise test (GXT) in people with PAD. Read More

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Smartphone-Based VO2max Measurement With Heart Snapshot in Clinical and Real-world Settings With a Diverse Population: Validation Study.

JMIR Mhealth Uhealth 2021 Jun 4;9(6):e26006. Epub 2021 Jun 4.

Sage Bionetworks, Seattle, WA, United States.

Background: Maximal oxygen consumption (VOmax) is one of the most predictive biometrics for cardiovascular health and overall mortality. However, VOmax is rarely measured in large-scale research studies or routine clinical care because of the high cost, participant burden, and requirement for specialized equipment and staff.

Objective: To overcome the limitations of clinical VOmax measurement, we aim to develop a digital VOmax estimation protocol that can be self-administered remotely using only the sensors within a smartphone. Read More

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The Fontan and the Sea: First-in-Man Data on Swimming and Diving Physiology in Fontan Patients.

Pediatr Cardiol 2021 Jun 3. Epub 2021 Jun 3.

Institute for Applied Scientific Training (IAT), Marschner Str. 29, 04109, Leipzig, Germany.

While swimming represents a popular recreational activity, the immersion of the human body into the water requires a complex physiologic adaption of the whole cardiopulmonary and circulatory system. While this sport is regarded as beneficial, especially in cardiovascular patients, current guidelines hypothesized a possible hazardous effect of swimming and especially diving in patients with univentricular hearts after Fontan palliation. Yet, actual data to underline or contradict these assumptions are lacking. Read More

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Can exercise test intensity and modality affect the prevalence of arrhythmic events in young athletes?

Res Sports Med 2021 Jun 3:1-9. Epub 2021 Jun 3.

Sport and Exercise Medicine Division, Department of Medicine, University of Padova, Padova, Italy.

Pre-participation screening is performed to identify underlying cardiac conditions that may also lead to sudden cardiac death. Our aim is to compare submaximal Harvard Step Test (HST) with incremental Maximal Exercise Test (MET) on treadmill to induce and detect arrhythmias in younger athletes. A total of 1000 athletes (mean age 14. Read More

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Does the Multistage 20-m Shuttle Run Test Accurately Predict VO in NCAA Division I Women Collegiate Field Hockey Athletes?

Sports (Basel) 2021 May 26;9(6). Epub 2021 May 26.

Frank Pettrone Center for Sports Performance, George Mason University, Fairfax, VA 22030, USA.

Laboratory assessments of maximal oxygen uptake (VO) are considered the "gold standard" for ascertaining cardiovascular fitness, but they are not always practical for use in team sport settings. Therefore, the purpose of the current study was to compare the criterion assessment of VO on a treadmill to the progressive, multistage 20-m shuttle run test (i.e. Read More

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The Protraction and Retraction Angles of Horse Limbs: An Estimation during Trotting Using Inertial Sensors.

Sensors (Basel) 2021 May 30;21(11). Epub 2021 May 30.

Université de Technologie de Compiègne, UMR CNRS 7338 BioMécanique et BioIngénierie, Alliance Sorbonne Université, 60200 Compiègne, France.

The protraction and retraction angles of horse limbs are important in the analysis of horse locomotion. This study explored two methods from an IMU positioned on the canon bone of eight horses to estimate these angles. Each method was based on a hypothesis in order to define the moment corresponding with the verticality of the canon bone: (i) the canon bone is in a vertical position at 50% of the stance phase or (ii) the verticality of the canon bone corresponds with the moment when the horse's withers reach their lowest point. Read More

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Cardiopulmonary Exercise Test in Patients with Hypertrophic Cardiomyopathy: A Systematic Review and Meta-Analysis.

J Clin Med 2021 May 25;10(11). Epub 2021 May 25.

Human Physiology Area, Faculty of Sport Sciences, University of Murcia, Santiago de la Ribera-San Javier, 30720 Murcia, Spain.

Background: Patients with chronic diseases frequently adapt their lifestyles to their functional limitations. Functional capacity in Hypertrophic Cardiomyopathy (HCM) can be assessed by stress testing. We aim to review and analyze the available data from the literature on the value of Cardiopulmonary Exercise Test (CPET) in HCM. Read More

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Supervised Resistance Training on Functional Capacity, Muscle Strength and Vascular Function in Peripheral Artery Disease: An Updated Systematic Review and Meta-Analysis.

J Clin Med 2021 May 19;10(10). Epub 2021 May 19.

Department of Surgery, University of Texas Medical Branch, Galveston, TX 77555, USA.

Supervised resistance training appears to be a promising alternative exercise modality to supervised walking in patients with peripheral artery disease (PAD). This meta-analysis examined the efficacy of supervised RT for improving walking capacity, and whether adaptations occur at the vascular and/or skeletal muscle level in PAD patients. We searched Medline, CINAHL, Scopus, and Cochrane Central Register of Controlled Trials databases for randomized controlled trials (RCTs) in PAD patients testing the effects of supervised RT for ≥4 wk. Read More

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Cardiac Rehabilitation and Physical Performance in Patients after Myocardial Infarction: Preliminary Research.

J Clin Med 2021 May 22;10(11). Epub 2021 May 22.

Department of Physiotherapy, Institute of Health Sciences, Slupsk Pomeranian University, 76200 Slupsk, Poland.

(1) Background: Cardiovascular diseases, in particular, myocardial infarction (MI), are the main threats to human health in modern times. Cardiac rehabilitation (CR), and especially increased physical activity, significantly prevent the consequences of MI. The aim of this study was to assess physical performance in patients after MI before and after CR. Read More

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Multimodal Supervised Exercise Training Is Effective in Improving Long Term Walking Performance in Patients with Symptomatic Lower Extremity Peripheral Artery Disease.

J Clin Med 2021 May 11;10(10). Epub 2021 May 11.

Division of Angiology, Heart and Vessel Department, Lausanne University Hospital, 1011 Lausanne, Switzerland.

This study aimed to evaluate the effect of a multimodal supervised exercise training (SET) program on walking performance for 12 months in patients with symptomatic lower extremity peripheral artery disease (PAD). Consecutive patients with Fontaine stage II PAD participating in the SET program of our hospital were retrospectively investigated. Walking performance, assessed using a treadmill with measures of the pain-free and maximal walking distance (PFWD, MWD, respectively), and 6 min walking distance (6MWD), were tested before and following SET, as well as at 6 and 12 months after SET completion. Read More

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25-Hydroxyvitamin D and Cardiorespiratory Fitness in Prepubertal Overweight and Obese Children.

Nutrients 2021 May 11;13(5). Epub 2021 May 11.

GENUD (Growth, Exercise, Nutrition and Development) Research Group and IIS-Aragon, 50009 Zaragoza, Spain.

Childhood obesity has become a major global health problem. Vitamin D deficiency and poor cardiorespiratory fitness are highly prevalent in children with overweight or obesity, but little is known about their relationships. In this study, we aimed to analyze the relationship between serum 25-hydroxyvitamin D (25(OH)D) and cardiorespiratory fitness parameters in prepubertal obese and overweight children. Read More

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The Effects of the Combination of High-Intensity Interval Training with 3D-Multiple Object Tracking Task on Perceptual-Cognitive Performance: A Randomized Controlled Intervention Trial.

Int J Environ Res Public Health 2021 May 2;18(9). Epub 2021 May 2.

Department of Sport and Exercise Science, Institute of Sport Psychology & Human Movement Performance, University of Stuttgart, 70569 Stuttgart, Germany.

The ability to process goal-related visual information while ignoring goal-irrelevant information is essential for the human attention system. The study aimed to investigate how perceptual-cognitive performance was affected during high-intensity interval training (HIIT) using a 3D-multiple object tracking (3D-MOT) task called Neurotracker (NT). In an experimental design, 42 healthy adults (age = 23. Read More

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Physiological Responses to Active Video Games Compared to Treadmill Walking and TV Watching in Obese Children and Adolescents.

Int J Exerc Sci 2021 1;14(7):519-532. Epub 2021 Apr 1.

Department of Pediatrics, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, USA.

The purpose of this study was to examine the physiological responses to playing different active video games (AVG), as well as document the activity level exerted during AVG in relation to treadmill walking (TM) and watching television (TV). 20 youth (age 11-17 yr) with obesity were recruited from the Healthy Lifestyle Clinic and underwent testing under six randomized conditions: 1) TM, 2) TV, 3) Fitnexx, 4) river rush (RRH), 5) reflex ridge (RFR), and 6) space pop (SP). RRH, RFR, and SP are active video games for the Xbox 360. Read More

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Effects of Caffeine on Exercise Duration, Critical Velocity, and Ratings of Perceived Exertion During Repeated-Sprint Exercise in Physically Active Men.

Int J Exerc Sci 2021 1;14(2):435-445. Epub 2021 Apr 1.

Department of Kinesiology, Kansas State University, Manhattan, KS, USA.

Caffeine improves short-to-moderate distance running performance, but the effect of caffeine on repeated sprints are equivocal. This research determined if caffeine improved exercise tolerance during repeated-sprint exercise. iCV is a running velocity that distinguishes intermittent running velocities (velocities ≤ iCV) that are sustainable from those resulting in a predictable time to exhaustion (velocities > iCV). Read More

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Tele-rehabilitation for lung transplant candidates and recipients during the COVID-19 pandemic: a program evaluation.

JMIR Mhealth Uhealth 2021 May 27. Epub 2021 May 27.

Toronto Lung Transplant Program, University Health Network, 585 University Ave, Toronto, CA.

Background: : The COVID-19 pandemic resulted in a rapid shift from center-based to tele-rehabilitation in chronic respiratory disease and lung transplantation due to infection control precautions. Clinical experience with this delivery model on a large scale has not been described.

Objective: To describe usage and satisfaction of providers and lung transplant (LTx) candidates and recipients and functional outcomes following the broad implementation of tele-rehabilitation with remote patient monitoring during the first wave of the COVID-19 pandemic. Read More

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Physiological demands of singing for lung health compared with treadmill walking.

BMJ Open Respir Res 2021 05;8(1)

National Heart and Lung Institute, Imperial College London, London, UK.

Introduction: Participating in singing is considered to have a range of social and psychological benefits. However, the physiological demands of singing and its intensity as a physical activity are not well understood.

Methods: We compared cardiorespiratory parameters while completing components of Singing for Lung Health sessions, with treadmill walking at differing speeds (2, 4 and 6 km/hour). Read More

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The effect of sedentary time on the results of exercise therapy in patients with peripheral arterial disease complicated with type 2 diabetes.

Ann Palliat Med 2021 May 12;10(5):5366-5372. Epub 2021 May 12.

Department of Pediatrics, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.

Background: Peripheral artery disease (PAD) is a common chronic complication of type 2 diabetes (T2DM). This study sought to evaluate the effect of supervised exercise therapy (SET) on patients with PAD complicated with T2DM, and to assess the effect of changes in sedentary time on the results of SET treatment.

Methods: A total of 100 PAD patients who were treated in our hospital from January 2019 to October 2020 were included, and the age, gender, body mass index (BMI), hypertension, smoking, and ankle brachial index (ABI) were collected. Read More

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Morning Preconditioning Exercise Does Not Increase Afternoon Performance in Competitive Runners.

Int J Sports Physiol Perform 2021 May 27:1-8. Epub 2021 May 27.

Purpose: Preconditioning exercise is a widely used strategy believed to enhance performance later the same day. The authors examined the influence of preconditioning exercises 6 hours prior to a time-to-exhaustion (TTE) test during treadmill running.

Methods: Ten male competitive runners (age = 26 [3] y, height = 184 [8] cm, weight = 73 [9] kg, maximum oxygen consumption = 72 [7] mL·kg-1·min-1) did a preconditioning session of running (RUN) or resistance exercise (RES) or no morning exercise (NoEx) in a randomized order, separated by >72 hours. Read More

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Could heart rate recovery and exercise capacity predict abnormal 99mTc-MIBI myocardial perfusion scan findings?

Glob Cardiol Sci Pract 2021 Apr 30;2021(1):e202107. Epub 2021 Apr 30.

Department of Radiology, Shahid Sadoughi Hospital, Faculty of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.

: Ischemic heart diseases lead to numerous deaths worldwide. Prevention, rapid diagnosis and treatment are principal strategies in controlling mortality due to coronary artery diseases (CAD). Considering variety of options, finding suitable diagnostic modality for each patient has been controversial for long times. Read More

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Cardiovascular magnetic resonance image analysis and mechanism study for the changes after treatments for primary microvascular angina pectoris.

Medicine (Baltimore) 2021 May;100(21):e26038

Zhejiang Hospital of Integrated Traditional Chinese and Western Medicine (HangZhou Red Cross Hospital), Hangzhou, Zhejiang, China.

Abstract: Most cases of primary microvascular angina pectoris (PMVA) are diagnosed clinically, but the etiology and pathological mechanisms are unknown. The effect of routine clinical medications is minimal, and PMVA can progress to serious cardiovascular events. To improve the diagnosis and effective treatment of this disease, this study was designed to diagnose PMVA via cardiovascular magnetic resonance (CMR) and the coronary angiography thrombolysis in myocardial infarction (TIMI) blood flow grade, as well as to analyze vascular endothelial function to elucidate the pathogenesis of PMVA and compare the effects of routine clinical medications. Read More

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Strain echocardiography to describe left ventricular function pre- and postexercise in elite basketball athletes: A feasibility study.

Echocardiography 2021 May 24. Epub 2021 May 24.

Northwestern University Feinberg School of Medicine, Chicago, IL, USA.

Background: Elite athletes show structural cardiac changes as an adaptation to exercise. Studies examining strain in athletes have largely analyzed images at rest only. There is little data available regarding the change in strain with exercise. Read More

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Assessment for cardiovascular fitness in patients with stroke: which cardiopulmonary exercise testing method is better?

Top Stroke Rehabil 2021 May 22:1-9. Epub 2021 May 22.

Department of Physical Medicine & Rehabilitation, Faculty of Medicine, Ankara University, Ankara, Turkey.

: Assessment for cardiovascular disease (CVD) is important in stroke patients, both being one of the main factors limiting success in stroke rehabilitation and its increased risk in stroke patients. Reduced exercise capacity after stroke decreases patients' functionality and further increases the risk of CVD. Carefully selected cardiopulmonary exercise testing (CPET) can be safely used to determine the risk of CVD and to prescribe exercise program in stroke rehabilitation. Read More

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