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Treadmill exercise testing

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https://www.readbyqxmd.com/read/28818578/can-exercise-training-counteract-doxorubicin-induced-oxidative-damage-of-testis-proteome
#1
José Magalhães, António Ascensão, Ana I Padrão, Inês M Aleixo, Estela Santos-Alves, Sílvia Rocha-Rodrigues, André Ferreira, Luis Korrodi-Gregório, Rui Vitorino, Rita Ferreira, Margarida Fardilha
The use of the chemotherapeutic drug doxorubicin (DOX) is limited by its toxicity in several organs such as testes. So, we analyzed the effect of endurance treadmill exercise training (EX) performed before sub-chronic DOX treatment on sperm count and motility, testes markers of oxidative damage and apoptosis. Tissue profiling of proteins more susceptible to oxidation was made to identify the molecular pathways regulated by oxidative modifications, as nitration and carbonylation. Twenty-four adult male rats were divided into four groups (n=6/group): sedentary saline (SED+SAL), sedentary sub-chronically injected with DOX (2mg-kg-1 per week, during 7 weeks; SED+DOX), 12 weeks trained saline (EX+SAL) and trained treated with DOX (EX+DOX)...
August 14, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28814168/deterioration-of-heart-rate-recovery-index-in-patients-after-carotid-artery-stenting
#2
Emrah Aytac, Murat Gonen, Orhan Dogdu, Mehmet Balin
Objective Although carotid artery stenting (CAS) is an effective treatment for severe carotid stenosis, it has been associated with alterations in autonomic functions long term after the procedure. Patients with CAS have been reported to have autonomic nervous system (ANS) dysfunction. This study aimed to evaluate heart rate recovery (HRR) indices and exercise test parameters after CAS. Methods Patients (10 male, 11 female) suitable for CAS, without a history of hypertension, diabetes mellitus, severe coronary artery or valvular heart disease, were enrolled in our study...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28812419/the-effects-of-exergaming-and-treadmill-training-on-gait-balance-and-cognition-in-a-person-with-parkinson-s-disease-a-case-study
#3
Srikant Vallabhajosula, Amy K McMillion, Jane E Freund
BACKGROUND: Parkinson's disease (PD) commonly impairs posture, gait, and cognition. Exercise in the form of aerobic activity as well as exergaming may improve motor ability and cognition in persons with PD. Exergaming and treadmill training can be a practical form of exercise within the home; however, there is minimal research on this combined multimodal intervention for persons with PD. OBJECTIVE: We investigated the effects of this combined intervention on cognition, balance, and gait in a person with PD through supervised lab sessions augmented by home-based sessions...
August 16, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28811842/the-effect-of-three-different-exercise-training-modalities-on-cognitive-and-physical-function-in-a-healthy-older-population
#4
Carla Coetsee, Elmarie Terblanche
BACKGROUND: Older adults are encouraged to participate in regular physical activity to counter the age-related declines in physical and cognitive health. Literature on the effect of different exercise training modalities (aerobic vs resistance) on these health-related outcomes is not only sparse, but results are inconsistent. In general, it is believed that exercise has a positive effect on executive cognitive function, possibly because of the physiological adaptations through increases in fitness...
2017: European Review of Aging and Physical Activity
https://www.readbyqxmd.com/read/28811359/exercise-training-prevents-skeletal-muscle-plasma-membrane-cholesterol-accumulation-cortical-actin-filament-loss-and-insulin-resistance-in-c57bl-6j-mice-fed-a-western-style-high-fat-diet
#5
Ashley G Ambery, Lixuan Tackett, Brent A Penque, Joseph T Brozinick, Jeffrey S Elmendorf
Insulin action and glucose disposal are enhanced by exercise, yet the mechanisms involved remain imperfectly understood. While the causes of skeletal muscle insulin resistance also remain poorly understood, new evidence suggest excess plasma membrane (PM) cholesterol may contribute by damaging the cortical filamentous actin (F-actin) structure essential for GLUT4 glucose transporter redistribution to the PM upon insulin stimulation. Here, we investigated whether PM cholesterol toxicity was mitigated by exercise...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28808493/pulmonary-consequences-of-hypothyroidism
#6
Samiaa Hamdy Sadek, Walaa Anwar Khalifa, Ahmad Metwally Azoz
BACKGROUND: Although hypothyroidism has an insidious onset and relatively asymptomatic, exertional dyspnea and fatigue can be the presenting complaints. OBJECTIVES: The aim is to assess functional lung impairment in hypothyroid patients both at rest and during exercise. METHODS: A case-control study was carried out on 42 patients with newly diagnosed hypothyroidism and 12 control subjects. Hypothyroidism was diagnosed based on high value of thyroid stimulating hormone (TSH) ≥6 μIU/ml, and low value of free thyroxin (FT4) ≤0...
July 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/28804236/discrepancies-in-prevalence-of-peripheral-arterial-disease-between-lower-extremities-at-rest-and-postexercise
#7
Kevin P Cohoon, Guillaume Mahe, David A Liedl, Thom W Rooke, Paul W Wennberg
Background  Lower extremity peripheral arterial disease (PAD) is a common medical condition causing substantial morbidity. Limited data exist on whether discrepancies in PAD prevalence exist between the lower extremities using resting ankle-brachial indices (ABIs) and postexercise pressures. Objective  We predicted the prevalence of PAD between the lower extremities. Methods and Results  Consecutive patients who had undergone a noninvasive arterial lower extremity study at Mayo Clinic, Rochester, MN, between January 1996 and December 2012 with suspected PAD were retrospectively reviewed...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28804233/effects-of-physical-activity-and-ginkgo-biloba-on-cognitive-function-and-oxidative-stress-modulation-in-ischemic-rats
#8
Ladan Vaghef, Hassan Bafandeh Gharamaleki
Either exercise or Ginkgo biloba is reported to improve cognitive functioning. The aim of this study is to compare the protective effects of forced exercise and Ginkgo biloba on oxidative stress as well as memory impairments induced by transient cerebral ischemia. Adult male Wistar rats were treated with treadmill running or Ginkgo biloba extract for 2 weeks before cerebral ischemia. Memory was assessed using a Morris water maze (MWM) task. At the end of the behavioral testing, oxidative stress biomarkers were evaluated in the hippocampus tissue...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28803675/the-yale-fitness-intervention-trial-in-female-cancer-survivors-cardiovascular-and-physiological-outcomes
#9
M Tish Knobf, Sangchoon Jeon, Barbara Smith, Lyndsay Harris, Siobhan Thompson, Mitchel R Stacy, Karl Insogna, Albert J Sinusas
BACKGROUND: Induced premature menopause and cardio-toxic therapy increase cardiovascular disease risk in female cancer survivors. OBJECTIVE: To compare the effects of a 12 month aerobic-resistance fitness center intervention to home based physical activity on cardiovascular function and metabolic risk factors. METHODS: Subjects (N = 154) who had completed primary and/or adjuvant chemotherapy (past 3 years) were randomized to a fitness center intervention or a home based group...
August 10, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28801819/treadmill-exercise-prevents-increase-of-neuroinflammation-markers-involved-in-the-dopaminergic-damage-of-the-6-ohda-parkinson-s-disease-model
#10
Caroline Cristiano Real, Priscila Crespo Garcia, Luiz R G Britto
Parkinson's disease (PD) involves loss of dopaminergic neurons in the substantia nigra (SN), which can be correlated to neuroinflammatory changes with the aging of the nervous system. On the other hand, exercise can reduce the deleterious effects promoted by age, but the mechanism involved is still unclear. This study investigated the preventive exercise-induced changes on neuroinflammatory processes in a rat model of PD induced by unilateral striatal injections of 6-hydroxydopamine (6-OHDA). Adult male Wistar rats were divided into two groups: (1) sedentary (SED) or (2) exercised (EX), animals that did treadmill exercise three times per week, every other day, for 4 weeks prior to 6-OHDA or saline injection...
August 11, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28801055/therapy-with-mesenchymal-stromal-cells-or-conditioned-medium-reverse-cardiac-alterations-in-a-high-fat-diet-induced-obesity-model
#11
P S Daltro, B C Barreto, P G Silva, P Chenaud Neto, P H F Sousa Filho, D Santana Neta, G B Carvalho, D N Silva, B D Paredes, A C de Alcantara, L A R Freitas, R D Couto, R R Santos, B S F Souza, M B P Soares, S G Macambira
BACKGROUND: Obesity is associated with numerous cardiac complications, including arrhythmias, cardiac fibrosis, remodeling and heart failure. Here we evaluated the therapeutic potential of mesenchymal stromal cells (MSCs) and their conditioned medium (CM) to treat cardiac complications in a mouse model of high-fat diet (HFD)-induced obesity. METHODS: After obesity induction and HFD withdrawal, obese mice were treated with MSCs, CM or vehicle. Cardiac function was assessed using electrocardiography, echocardiography and treadmill test...
August 8, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28800177/exercise-stress-test-reveals-ineligibility-for-subcutaneous-implantable-cardioverter-defibrillator-in-patients-with-brugada-syndrome
#12
Motomi Tachibana, Nobuhiro Nishii, Hiroshi Morita, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Ito
BACKGROUND: The eligibility of patients with Brugada syndrome (BrS) for implantation of a subcutaneous implantable cardioverter defibrillator (S-ICD) is not well known. This study aimed to clarify the eligibility of BrS patients for S-ICD using electrocardiography (ECG) at rest and during exercise testing. We also analyzed factors associated with ineligibility for S-ICD from standard 12-lead ECG at rest. METHODS: We enrolled 110 consecutive BrS patients who visited Okayama university hospital from December 2015 to December 2016...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28794439/maternal-low-intensity-physical-exercise-prevents-obesity-in-offspring-rats-exposed-to-early-overnutrition
#13
Tatiane Aparecida Ribeiro, Laize Peron Tófolo, Isabela Peixoto Martins, Audrei Pavanello, Júlio Cezar de Oliveira, Kelly Valério Prates, Rosiane Aparecida Miranda, Claudinéia Conationi da Silva Franco, Rodrigo Mello Gomes, Flávio Andrade Francisco, Vander Silva Alves, Douglas Lopes de Almeida, Veridiana Mota Moreira, Kesia Palma-Rigo, Elaine Vieira, Gabriel Sergio Fabricio, Marcos Ricardo da Silva Rodrigues, Wilson Rinaldi, Ananda Malta, Paulo Cezar de Freitas Mathias
Low intensity exercise during pregnancy and lactation may create a protective effect against the development of obesity in offspring exposed to overnutrition in early life. To test these hypotheses, pregnant rats were randomly assigned into 2 groups: Sedentary and Exercised, low intensity, on a rodent treadmill at 30% VO2Max /30-minute/session/3x/week throughout pregnancy and the lactation. Male offspring were raised in small litters (SL, 3 pups/dam) and normal litters (NL, 9 pups/dam) as models of early overnutrition and normal feed, respectively...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28792230/exercise-capacity-and-haemodynamic-response-among-12-327-individuals-with-cardio-metabolic-risk-factors-undergoing-treadmill-exercise
#14
Christina Chrysohoou, John Skoumas, Georgios Georgiopoulos, Catherine Liontou, Georgia Vogiatzi, Konstantinos Tsioufis, Stamatios Lerakis, Dimitrios Soulis, Christos Pitsavos, Dimitris Tousoulis
Aims Haemodynamic parameters during and after exercise test seem to have a role in predicting cardiovascular events. We sought to evaluate the potential different responses in exercise capacity, heart rate and blood pressure levels in relation to major cardiovascular disease risk factors, among individuals undergoing exercise tolerance testing. Methods and results Consecutive individuals ( N = 12,327), aged 55 ± 11.8 years, underwent exercise tolerance testing, using the Bruce protocol. Obese participants showed higher values of peak systolic and diastolic blood pressure ( p < 0...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28782653/a-maximal-incremental-effort-alters-tear-osmolarity-depending-on-the-fitness-level-in-military-helicopter-pilots
#15
Jesús Vera Vilchez, Raimundo Jimenez, Iker Madinabeitia, Nerijus Masiulis, David Cárdenas
PURPOSE: Fitness level modulates the physiological responses to exercise for a variety of indices. While intense bouts of exercise have been demonstrated to increase tear osmolarity (Tosm), it is not known if fitness level can affect the Tosm response to acute exercise. This study aims to compare the effect of a maximal incremental test on Tosm between trained and untrained military helicopter pilots. METHODS: Nineteen military helicopter pilots (ten trained and nine untrained) performed a maximal incremental test on a treadmill...
August 4, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28775067/running-training-experience-attenuates-disuse-atrophy-in-fast-twitch-skeletal-muscles-of-rats
#16
Keisuke Nakamura, Ikumi Ohsawa, Ryo Masuzawa, Ryotaro Konno, Atsuya Watanabe, Fuminori Kawano
Responsiveness to physiological stimuli, such as exercise and muscular inactivation, differs in individuals. However, the mechanisms responsible for these individual differences remain poorly understood. We tested whether a prior experience of exercise training affects the responses of skeletal muscles to unloading. Young rats were assigned to perform daily running training using a treadmill for 8 weeks. After an additional 8 weeks of normal habitation, the rats were hindlimb unloaded by tail suspension for 1 week...
August 3, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28770457/exercise-induced-polymorphic-ventricular-tachycardia-during-treadmill-stress-test
#17
Federico G De Puy, Ayman A Farag, Vineet Kumar
No abstract text is available yet for this article.
August 2, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28765826/validity-and-reliability-of-grade-scoring-in-the-diagnosis-of-exercise-induced-laryngeal-obstruction
#18
Emil Schwarz Walsted, James H Hull, Jeppe Hvedstrup, Robert Christiaan Maat, Vibeke Backer
The current gold-standard method for diagnosing exercise-induced laryngeal obstruction (EILO) is continuous laryngoscopy during exercise (CLE), with severity classified by a visual grade scoring system. We evaluated the precision of this approach, by evaluating test-retest reliability of CLE and both inter- and intra-rater variability. In this prospective case-control study, subjects completed four consecutive treadmill CLE tests under identical conditions. Laryngoscopic video recordings were anonymised and graded by three expert raters...
July 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28761700/a-novel-treadmill-protocol-for-exercise-testing-in-children-the-british-columbia-children-s-hospital-protocol
#19
D Kathryn Duff, Astrid M De Souza, Derek G Human, James E Potts, Kevin C Harris
BACKGROUND: Exercise testing in children is widely recommended for a number of clinical and prescriptive reasons. Many institutions continue to use the Bruce protocol for treadmill testing; however, with its incremental changes in speed and grade, it has challenges for practical application in children. We have developed a novel institutional protocol (British Columbia Children's Hospital (BCCH)), which may have better utility in paediatric populations. AIM: To determine if our institutional protocol yields similar peak responses in minute ventilation (VE), oxygen consumption (VO2), carbon dioxide production (VCO2), respiratory exchange ratio (RER), metabolic equivalents (METS) and heart rate (HR) when compared with the traditional Bruce protocol...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/28759977/effects-of-progressive-backward-body-weight-suppoted-treadmill-training-on-gait-ability-in-chronic-stroke-patients-a-randomized-controlled-trial
#20
Kyung Hun Kim, Kyoung Bo Lee, Young-Hyeon Bae, Shirley S M Fong, Suk Min Lee
BACKGROUND AND OBJETIVE: A stroke patient with hemiplegic gait is generally described as being slow and asymmetric. Body weight-supported treadmill training and backward gait training are recent additions to therapeutic gait trainings that may help improve gait in stroke patient with hemiplegic gait. Therefore, we examined the effect of progressive backward body weight-supported treadmill training on gait in chronic stroke patients with hemiplegic gait. METHODS: Thirty subjects were divided to the experimental and control groups...
July 25, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
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