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Exercise testing

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https://www.readbyqxmd.com/read/28647809/left-ventricles-of-aging-athletes-better-untwisters-but-not-more-relaxed-during-exercise
#1
Claire Maufrais, G Doucende, T Rupp, M Dauzat, P Obert, S Nottin, I Schuster
OBJECTIVE: With an aging population and the increasing prevalence of heart failure with preserved ejection fraction, developing strategies to prevent diastolic dysfunction is crucial. Regular endurance training has been suggested to be one such strategy. However, the underlying mechanisms of training, including the effect on left ventricular (LV) untwist, which promotes LV filling, are unclear and studies exploring the heart during exercise in the aging heart are lacking. METHODS: Cardiopulmonary exercise testing with speckle tracking echocardiography was realized in male subjects: 16 young athletes (YA), 19 young controls (YC), 22 middle-aged athletes (MA) with a lifelong history of endurance training, and 20 middle-aged controls (MC)...
June 24, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28647310/effect-of-a-web-based-positive-psychology-intervention-on-prenatal-well-being-a-case-series-study
#2
Giulia Corno, Ernestina Etchemendy, Macarena Espinoza, Rocío Herrero, Guadalupe Molinari, Alba Carrillo, Constance Drossaert, Rosa Maria Baños
BACKGROUND: Detrimental effects of women's negative feelings during pregnancy have been extensively examined and documented, but research on the influence of positive feelings and protective factors on their prenatal mental health is scarce. Evidence from the positive psychology field has shown that practicing some brief positive exercises, called positive psychology interventions, can maximize well-being by increasing positive emotions, engagement, and meaning. AIM: The aim of this study is to examine the effect of a positive psychology web-based intervention on indices of women's prenatal well-being...
June 21, 2017: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/28647284/the-effects-of-high-intensity-interval-training-on-muscle-size-and-quality-in-overweight-and-obese-adults
#3
Malia N M Blue, Abbie E Smith-Ryan, Eric T Trexler, Katie R Hirsch
OBJECTIVES: Despite growing popularity of high intensity interval training (HIIT) for improving health and fitness, limited data exist identifying the effects of HIIT on muscle characteristics. The purpose of the current study was to investigate the effects of a 3-week HIIT intervention on muscle size and quality in overweight and obese men and women. DESIGN: Randomized controlled trial. METHODS: Forty-four overweight and obese men and women (mean±SD; age: 35...
June 8, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28647194/prediction-of-6-minute-walk-performance-in-patients-with-peripheral-artery-disease
#4
Xi Chen, Julie A Stoner, Polly S Montgomery, Ana I Casanegra, Federico Silva-Palacios, Sixia Chen, Amanda E Janitz, Andrew W Gardner
BACKGROUND: Peripheral artery disease (PAD) is a highly prevalent disease that impairs walking ability. Walking tests, such as the 6-minute walk test (6MWT) and 4-meter walk test, are commonly used to assess exercise endurance and ambulatory function over a short distance, respectively. The 6MWT performance is predictive of PAD severity and disease outcomes, but it is not feasible in many clinical settings because it requires a long walkway to serve as the test route and lengthens clinic visits...
June 21, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28646812/oral-consumption-of-vitamin-k2-for-8-weeks-associated-with-increased-maximal-cardiac-output-during-exercise
#5
Brian K McFarlin, Andrea L Henning, Adam S Venable
Background • Vitamin K1 and K2 are not typically common in a Western diet because they are found in a variety of fermented foods. Vitamin K2 in particular has been demonstrated to restore mitochondrial function and has a key role in production of mitochondrial adenosine triphosphate. Thus, it is reasonable to speculate that dietary supplementation with vitamin K2 could increase the function of muscle with high mitochondrial content (ie, skeletal and cardiac muscle). Objective • The purpose of this study was to determine if 8 wk of dietary supplementation with Vitamin K2 could alter cardiovascular responses to a graded cycle ergometer test...
July 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28645696/exercise-training-improves-functional-status-in-hypertensive-older-adults-under-angiotensin-converting-enzymes-inhibitors-medication
#6
Liliana C Baptista, Aristides M Machado-Rodrigues, Manuel Teixeira Veríssimo, Raul A Martins
BACKGROUND: The study aims to analyze the effect of three types of treatment on functional status, and cardiovascular risk outcomes in hypertensive older adults with comorbidities. METHODS: Participants (n=418) underwent one of the following 3 conditions: i) multicomponent exercise training 3times/week (MEX; n=116); ii) angiotensin converting enzyme inhibitors used mono-dose daily (ACEi; n=70); iii) combined exercise and ACEi drugs (ACEiMEX; n=232). The trial was completed by 82% of the participants (n=342): MEX (n=90); ACEi (n=66); ACEiMEX (n=186)...
June 20, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28645495/validity-and-reliability-of-the-mytemp-ingestible-temperature-capsule
#7
Coen C W G Bongers, Maria T E Hopman, Thijs M H Eijsvogels
OBJECTIVES: An accurate and non-invasive measurement of core body temperature (Tc) is of great importance to quantify exercise-induced increases in Tc in athletes or to assess changes in Tc in patient populations. The use of ingestible gastrointestinal telemetric temperature capsules is widely accepted as a surrogate marker for Tc, but widespread implementation is lacking due to the high costs of these disposable capsules. A new and cheaper temperature capsule system (i.e. myTemp) was recently introduced...
June 8, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28645449/high-incidence-of-st-t-changes-in-women-during-tilt-table-testing
#8
Prakash Goutham Suryanarayana, Jagdesh Kandala, Frank I Marcus
INTRODUCTION: We have observed electrocardiographic (ECG) changes primarily in women during tilt table testing. METHODS: We reviewed 12 lead ECGs during tilt studies between 2012 and 2016 for changes in ST segments and T waves during tilt table testing. Patients with distinctly abnormal baseline ECGs were excluded. RESULTS: Of the 180 tilt studies, 117 (65%) were in women. There were 32 patients with ECG changes during tilting. Of these, 28 (87...
June 9, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28645301/the-sternal-management-accelerated-recovery-trial-s-m-a-r-t-standard-restrictive-versus-an-intervention-of-modified-sternal-precautions-following-cardiac-surgery-via-median-sternotomy-study-protocol-for-a-randomised-controlled-trial
#9
Md Ali Katijjahbe, Linda Denehy, Catherine L Granger, Alistair Royse, Colin Royse, Rebecca Bates, Sarah Logie, Sandy Clarke, Doa El-Ansary
BACKGROUND: The routine implementation of sternal precautions to prevent sternal complications that restrict the use of the upper limbs is currently worldwide practice following a median sternotomy. However, evidence is limited and drawn primarily from cadaver studies and orthopaedic research. Sternal precautions may delay recovery, prolong hospital discharge and be overly restrictive. Recent research has shown that upper limb exercise reduces post-operative sternal pain and results in minimal micromotion between the sternal edges as measured by ultrasound...
June 23, 2017: Trials
https://www.readbyqxmd.com/read/28645281/sex-difference-in-the-risk-for-exercise-induced-albuminuria-correlates-with-hemoglobin-a1c-and-abnormal-exercise-ecg-test-findings
#10
Rafael Y Brzezinski, Inbal Etz-Hadar, Ayelet Grupper, Michal Ehrenwald, Itzhak Shapira, David Zeltser, Shlomo Berliner, Ori Rogowski, Roy Eldor, Shani Shenhar-Tsarfaty
BACKGROUND: Albuminuria is an established marker for endothelial dysfunction and cardiovascular risk in diabetes and prediabetes. Exercise induced albuminuria (EiA) appears earlier and may be a more sensitive biomarker for renal endothelial damage. We sought to examine the association between EiA, parameters of the metabolic syndrome, A1C levels, exercise ECG test results and sex related differences in a large cohort of healthy, pre-diabetic and diabetic subjects. METHODS: A total of 3029 participants from the Tel-Aviv Medical Center Inflammation Survey cohort (mean age 46 years, 73% men) were analyzed...
June 23, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28645094/quality-assessment-of-shoulder-plyometric-exercises-examining-the-relationship-to-scapular-muscle-activity
#11
Maya Calé-Benzoor, Annelies Maenhout, Michal Arnon, Gershon Tenenbaum, Mia Werrin, Ann Cools
OBJECTIVES: The purpose of the study was to evaluate performance quality of shoulder plyometric exercises, and examine the relationship to scapular muscle activation during an intense exercise bout. DESIGN: Observational study. SETTING: University laboratory. PARTICIPANTS: 32 healthy university students (male/female: 14/18) volunteers. MAIN OUTCOME MEASURES: Subjects performed 10 plyometric exercises...
May 12, 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28644727/impact-of-time-and-assisted-donning-on-respirator-fit
#12
Brian Rembialkowski, Margaret Sietsema, Lisa Brosseau
The goal of this study was to examine the impact of assistance with donning and time on quantitative fit factors (FF) and pass rates for subjects wearing an N95 filtering facepiece respirator (FFR) and a non-certified adhesive mask. Fit factors were measured using two side-by-side TSI Portacount instruments sampling second-by-second simultaneous inside- and outside-facepiece concentrations. Naïve subjects made two visits at least one week apart. At each visit subjects first donned either the respirator or adhesive mask without assistance and performed a five-exercise fast fit test...
June 23, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28644716/the-effects-of-acute-carbohydrate-and-caffeine-feeding-strategies-on-cycling-efficiency
#13
Matthew Cole, James G Hopker, Jonathan D Wiles, Damian A Coleman
To assess the effect of carbohydrate and caffeine on gross efficiency (GE), 14 cyclists (V̇O2max 57.6 ± 6.3 ml.kg(-1.)min(-1)) completed 4 × 2-hour tests at a submaximal exercise intensity (60% Maximal Minute Power). Using a randomized, counter-balanced crossover design, participants consumed a standardised diet in the 3-days preceding each test and subsequently ingested either caffeine (CAF), carbohydrate (CHO), caffeine+carbohydrate (CAF+CHO) or water (W) during exercise whilst GE and plasma glucose were assessed at regular intervals (~30 mins)...
June 23, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28644301/palliative-oxygen-for-chronic-breathlessness-what-new-evidence
#14
Zainab Ahmadi, David C Currow, Magnus Ekström
PURPOSE OF REVIEW: Supplemental oxygen improves survival in patients with chronic obstructive pulmonary disease (COPD) and severe hypoxaemia, but the effect of oxygen therapy in mild or moderate hypoxaemia to reduce symptomatic chronic breathlessness remains unclear. This review provides an overview of recent evidence about the role of oxygen therapy for the relief of chronic breathlessness in advanced illness. RECENT FINDINGS: In COPD, a recent Cochrane review strengthens earlier findings regarding the positive effect of supplemental oxygen compared with air during exercise test in the training setting...
July 20, 2017: Current Opinion in Supportive and Palliative Care
https://www.readbyqxmd.com/read/28644246/effects-of-exercise-on-the-immune-function-of-pediatric-patients-with-solid-tumors-insights-from-the-papec-randomized-trial
#15
Carmen Fiuza-Luces, Julio R Padilla, Jaime Valentín, Elena Santana-Sosa, Alejandro Santos-Lozano, Fabián Sanchis-Gomar, Helios Pareja-Galeano, Javier S Morales, Steven J Fleck, Margarita Pérez, Alvaro Lassaletta, Luisa Soares-Miranda, Antonio Pérez-Martínez, Alejandro Lucia
The purpose of this study was to assess the effects of an in-hospital exercise intervention during neoadjuvant chemotherapy on the inflammatory profile and immune cell subpopulation in 20 children with solid tumors (control [n = 11] and exercise group [n = 9]). Although no significant interaction (group × time) effect was found with an analysis of variance test, we found a trend toward an interaction effect for natural killer cells expressing the immunoglobulin-like receptor KIR2DS4, with their numbers remaining stable in the exercise group but increasing in controls...
June 21, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28644243/role-of-breathing-conditions-during-exercise-testing-on-training-prescription-in-chronic-obstructive-pulmonary-disease
#16
Daniel Neunhäuserer, Eva Steidle-Kloc, Marco Bergamin, Gertraud Weiss, Andrea Ermolao, Bernd Lamprecht, Michael Studnicka, Josef Niebauer
This study investigated whether different breathing conditions during exercise testing will influence measures of exercise capacity commonly used for training prescription in chronic obstructive pulmonary disease. Twenty-seven patients with chronic obstructive pulmonary disease (forced expiratory volume in 1 sec = 45.6 [9.4]%) performed three maximal exercise tests within 8 days, but at least 48 hrs apart. Subjects were thereby breathing either room air through a tightly fitting face mask like during any cardiopulmonary exercise test (MASK), room air without mask (No-MASK), or 10 l/min of oxygen via nasal cannula (No-MASK + O2)...
June 21, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28644208/shake-it-off-a-randomized-pilot-study-of-the-effect-of-whole-body-vibration-on-pain-in-healing-burn-wounds
#17
Juliet J Ray, Angel D Alvarez, Sondra L Ulbrich, Sharon Lessner-Eisenberg, Shevonne S Satahoo, Jonathan P Meizoso, Charles A Karcutskie, Leela S Mundra, Nicholas Namias, Louis R Pizano, Carl I Schulman
Whole body vibration (WBV) has been shown to improve strength in extremities with healed burn wounds. We hypothesize that WBV reduces pain during rehabilitation compared to standard therapy alone. Patients with ≥1% TBSA burn to one or more extremities from October 2014 to December 2015 were randomized to vibration (VIBE) or control. Each burned extremity was tested separately within the assigned group. Patients underwent one to three therapy sessions (S1, S2, S3) consisting of five upper and/or lower extremity exercises with or without WBV...
July 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28643356/bimagrumab-improves-body-composition-and-insulin-sensitivity-in-insulin-resistant-subjects
#18
Tania Garito, Ronenn Roubenoff, Marcus Hompesch, Linda Morrow, Katherine Gomez, Daniel Rooks, Charles Meyers, Monte Buchsbaum, Srikanth Neelakantham, Therese Swan, Lee Anne Filosa, Didier Laurent, Olivier Petricoul, Marjorie Zakaria
BACKGROUND: Skeletal muscle is a key mediator of insulin resistance. Bimagrumab, an antibody against activin receptor type II (ActRII), prevents binding of negative muscle regulators, like myostatin, and increases lean mass and decreases fat mass in animal models. OBJECTIVE: We hypothesized that an improving body composition in insulin resistant individuals could enhance insulin sensitivity. METHODS: Sixteen individuals with mean body mass index (BMI) = 29...
June 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28643221/post-exercise-blood-flow-restriction-attenuates-hyperemia-similarly-in-males-and-females
#19
Scott J Dankel, J Grant Mouser, Matthew B Jessee, Kevin T Mattocks, Samuel L Buckner, Jeremy P Loenneke
PURPOSE: Our laboratory recently demonstrated that post-exercise blood flow restriction attenuated muscle hypertrophy only in females, which we hypothesized may be due to alterations in post-exercise blood flow. The aim of this study is to test our previous hypothesis that sex differences in blood flow would exist when employing the same protocol. METHODS: Twenty-two untrained individuals (12 females; 10 males) performed two exercise sessions, each involving one set of elbow flexion exercise to volitional failure on the right arm...
June 22, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28643129/magnetohydrodynamic-voltage-recorder-for-comparing-peripheral-blood-flow
#20
Kevin J Wu, T Stan Gregory, Michael C Lastinger, Jonathan R Murrow, Zion Tsz Ho Tse
Blood flow is a clinical metric for monitoring of cardiovascular diseases but current measurements methods are costly or uncomfortable for patients. It was shown that the interaction of the magnetic field (B 0) during MRI and blood flow in the body, through the magnetohydrodynamic (MHD) effect, produce voltages (V MHD) observable through intra-MRI electrocardiography (ECG), which are correlated with regional blood flow. This study shows the reproducibility of V MHD outside the MRI and its application in a portable flow monitoring device...
June 22, 2017: Annals of Biomedical Engineering
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