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https://www.readbyqxmd.com/read/28419703/exercise-capacity-following-pediatric-heart-transplantation-a-systematic-review
#1
Sara Peterson, Jennifer A Su, Jacqueline R Szmuszkovicz, Robert Johnson, Barbara Sargent
Pediatric HTs account for 13% of all HTs with >60% of recipients surviving at least 10 years post-HT. The purpose of this systematic review is to synthesize the literature on exercise capacity of pediatric HT recipients to improve understanding of the mechanisms that may explain the decreased exercise capacity. Six databases were searched for studies that compared the exercise capacity of HT recipients ≤21 years old with a control group or normative data. Sixteen studies were included. Pediatric HT recipients, as compared to controls or normative data, exhibit significantly higher resting HR, and at peak exercise exhibit significantly decreased HR, VO2 , power, work, minute ventilation, and exercise duration...
April 17, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28406700/moderate-exercise-based-on-artificial-gravity-preserves-orthostatic-tolerance-and-exercise-capacity-during-short-term-head-down-bed-rest
#2
Xiao-Tao Li, Chang-Bin Yang, Yong-Sheng Zhu, Jing Sun, Fei Shi, Yong-Chun Wang, Yuan Gao, Jiang-Dong Zhao, Xi-Qing Sun
Numerous countermeasures have been proposed to minimize microgravity-induced physical deconditioning, but their benefits are limited. The present study aimed to investigate whether personalized aerobic exercise based on artificial gravity (AG) mitigates multisystem physical deconditioning. Fourteen men were assigned to the control group (n=6) and the countermeasure group (CM, n=8). Subjects in the CM group were exposed to AG (2Gz at foot level) for 30 min twice daily, during which time cycling exercise of 80-95% anaerobic threshold (AT) intensity was undertaken...
April 12, 2017: Physiological Research
https://www.readbyqxmd.com/read/28398964/postacute-care-and-recovery-after-cancer-surgery-still-a-long-way-to-go
#3
Courtney J Balentine, Peter A Richardson, Meredith C Mason, Aanand D Naik, David H Berger, Daniel A Anaya
OBJECTIVE: To determine whether postacute care (PAC) facilities can compensate for increased mortality stemming from a complicated postoperative recovery (complications or deconditioning). BACKGROUND: An increasing number of patients having cancer surgery rely on PAC facilities including skilled nursing and rehabilitation centers to help them recover from postoperative complications and the physical demands of surgery. It is currently unclear whether PAC can successfully compensate for the adverse consequences of a complicated postoperative recovery...
May 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28345959/ventilatory-inefficiency-and-exertional-dyspnea-in-early-chronic-obstructive-pulmonary-disease
#4
J Alberto Neder, Danilo C Berton, Paulo de Tarso Müller, Amany F Elbehairy, Alcides Rocha, Paolo Palange, Denis E O'Donnell
Exertional dyspnea is present across the spectrum of chronic obstructive pulmonary disease (COPD) severity. However, without realizing it themselves, patients may decrease daily physical activity to avoid distressing respiratory sensations. Dyspnea also may be associated with deconditioning. Cardiopulmonary exercise testing can uncover exertional dyspnea and its physiological determinants in patients with preserved or only mildly-reduced FEV1. Dyspnea in mild COPD can largely be explained by increased "wasted" ventilation in the physiological dead space which heightens the drive to breathe and worsens the inspiratory mechanical constraints...
March 27, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28340389/minilaparotomy-without-general-anesthesia-for-the-treatment-of-sigmoid-volvulus-in-high-risk-patients-a-case-series-of-4-patients
#5
Ernesto L Enrique, Kareem A Hamdy
BACKGROUND: Sigmoid volvulus (SV) is a common cause of large bowel obstruction worldwide. Presenting symptoms can be nonspecific and varied amongst the elderly population, making medical and surgical management challenging. This population is at markedly increase risk of complications and mortality with surgery under general anesthesia. In this case series, we describe 4 cases of sigmoid volvulus in octogenarians. GOALS: To demonstrate that sigmoid colectomy under local anesthesia, with or without intravenous conscious sedation, is feasible and can be done safely and with a low rate of converting to a general anesthetic...
March 2, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28326563/early-structural-and-functional-signature-of-3-day-human-skeletal-muscle-disuse-using-the-dry-immersion-model
#6
Rémi Demangel, Loïc Treffel, Guillaume Py, Thomas Brioche, Allan F Pagano, Marie-Pierre Bareille, Arnaud Beck, Laurence Pessemesse, Robin Candau, Claude Gharib, Angèle Chopard, Catherine Millet
Microgravity and hypoactivity are associated with skeletal muscle deconditioning. The decrease of muscle mass is an exponential decay with major changes in the first days. The purpose of the study was to dissect out the effects of a short-term 3-day dry immersion (DI) on human quadriceps muscle function and structure. The DI model, by suppressing all support zones, accurately reproduces the effects of microgravity. Twelve healthy volunteers (32 ± 5 yrs) completed 3 days of DI. Muscle function was investigated through maximal voluntary contraction (MVC) tests and muscle viscoelasticity...
March 22, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28261402/cardiorespiratory-fitness-in-internal-medicine-residents-are-future-physicians-becoming-deconditioned
#7
Farshid Daneshvar, Michael Weinreich, Danial Daneshvar, Michael Sperling, Chadi Salmane, Harout Yacoub, James Gabriels, Thomas McGinn, Marianne C Smith
BACKGROUND : Previous studies have shown a falloff in physicians' physical activity from medical school to residency. Poor fitness may result in stress, increase resident burnout, and contribute to mortality from cardiovascular disease and other causes. Physicians with poor exercise habits are also less likely to counsel patients about exercise. Prior studies have reported resident physical activity but not cardiorespiratory fitness age. OBJECTIVE : The study was conducted in 2 residency programs (3 hospitals) to assess internal medicine residents' exercise habits as well as their cardiorespiratory fitness age...
February 2017: Journal of Graduate Medical Education
https://www.readbyqxmd.com/read/28186393/chronic-fatigue-in-ehlers-danlos-syndrome-hypermobile-type
#8
Alan Hakim, Inge De Wandele, Chris O'Callaghan, Alan Pocinki, Peter Rowe
Chronic fatigue is an important contributor to impaired health-related quality of life in Ehlers-Danlos syndrome. There is overlap in the symptoms and findings of EDS and chronic fatigue syndrome. A proportion of those with CFS likely have EDS that has not been identified. The evaluation of chronic fatigue in EDS needs to include a careful clinical examination and laboratory testing to exclude common causes of fatigue including anemia, hypothyroidisim, and chronic infection, as well as dysfunction of major physiological or organ systems...
March 2017: American Journal of Medical Genetics. Part C, Seminars in Medical Genetics
https://www.readbyqxmd.com/read/28131211/potential-pathophysiological-pathways-that-can-explain-the-positive-effects-of-exercise-on-fatigue-in-multiple-sclerosis-a-scoping-review
#9
REVIEW
Martin Langeskov-Christensen, Etienne J Bisson, Marcia L Finlayson, Ulrik Dalgas
BACKGROUND: Fatigue is one of the most common and most disabling symptoms of multiple sclerosis (MS). It is a multidimensional and complex symptom with multifaceted origins, involving both central and peripheral fatigue mechanisms. Exercise has proven to be safe for people with MS, with cumulating evidence supporting significant reductions in fatigue. However, the potential pathophysiological pathways that can explain the positive effects of exercise on fatigue in MS remain elusive. OBJECTIVES: The objectives were, in PwMS (1) to update the knowledge on the pathophysiology underlying primary and secondary fatigue, and (2) to discuss potential pathophysiological pathways that can explain the positive effects of exercise on MS fatigue...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28101556/time-for-food-training-physiatrists-in-nutritional-prescription
#10
Rani Polak, Marie Dacey, Edward M Phillips
INTRODUCTION: Sub-optimal nutrition is a leading factor in all-cause mortality, the preponderance of non-communicable chronic diseases, and various health conditions that are treated by physiatrists, such as stroke and musculoske-letal disorders. Furthermore, patients with chronic pain have a high prevalence of nutritional deficiencies, and malnutrition has been associated with limited rehabilitation outcomes in elderly patients with hospital-associated deconditioning. Thus, physiatrists may find it valuable to include nutrition in their patient services...
January 31, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28081223/high-intensity-jump-training-is-tolerated-during-60-days-of-bed-rest-and-is-very-effective-in-preserving-leg-power-and-lean-body-mass-an-overview-of-the-cologne-rsl-study
#11
Andreas Kramer, Jakob Kümmel, Edwin Mulder, Albert Gollhofer, Petra Frings-Meuthen, Markus Gruber
PURPOSE: Space agencies are looking for effective and efficient countermeasures for the degrading effects of weightlessness on the human body. The aim of this study was to assess the effects of a novel jump exercise countermeasure during bed rest on vitals, body mass, body composition, and jump performance. METHODS: 23 male participants (29±6 years, 181±6 cm, 77±7 kg) were confined to a bed rest facility for 90 days: a 15-day ambulatory measurement phase, a 60-day six-degree head-down-tilt bed rest phase (HDT), and a 15-day ambulatory recovery phase...
2017: PloS One
https://www.readbyqxmd.com/read/28066619/clinical-management-of-chronic-obstructive-pulmonary-disease-patients-with-muscle-dysfunction
#12
REVIEW
Joaquim Gea, Carme Casadevall, Sergi Pascual, Mauricio Orozco-Levi, Esther Barreiro
Muscle dysfunction is frequently observed in chronic obstructive pulmonary disease (COPD) patients, contributing to their exercise limitation and a worsening prognosis. The main factor leading to limb muscle dysfunction is deconditioning, whereas respiratory muscle dysfunction is mostly the result of pulmonary hyperinflation. However, both limb and respiratory muscles are also influenced by other negative factors, including smoking, systemic inflammation, nutritional abnormalities, exacerbations and some drugs...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28062324/a-home-based-exercise-intervention-for-non-small-cell-lung-cancer-patients-post-thoracotomy
#13
REVIEW
Amy J Hoffman, Ruth Ann Brintnall
OBJECTIVES: There are no evidenced-based rehabilitative guidelines for postsurgical non-small cell lung cancer (NSCLC) patients. This qualitative study provides evidence on the acceptability of an effective postsurgical exercise intervention targeting the self-management of cancer-related fatigue to fill this gap. DATA SOURCES: Qualitative perspective of 37 individuals randomized to a 6-week exercise program following hospital discharge post-thoracotomy for NSCLC...
February 2017: Seminars in Oncology Nursing
https://www.readbyqxmd.com/read/28050606/long-term-exposure-to-space-s-microgravity-alters-the-time-structure-of-heart-rate-variability-of-astronauts
#14
Kuniaki Otsuka, Germaine Cornelissen, Satoshi Furukawa, Yutaka Kubo, Mitsutoshi Hayashi, Koichi Shibata, Koh Mizuno, Tatsuya Aiba, Hiroshi Ohshima, Chiaki Mukai
BACKGROUND: Spaceflight alters human cardiovascular dynamics. The less negative slope of the fractal scaling of heart rate variability (HRV) of astronauts exposed long-term to microgravity reflects cardiovascular deconditioning. We here focus on specific frequency regions of HRV. METHODS: Ten healthy astronauts (8 men, 49.1 ± 4.2 years) provided five 24-hour electrocardiographic (ECG) records: before launch, 20.8 ± 2.9 (ISS01), 72.5 ± 3.9 (ISS02) and 152.8 ± 16...
December 2016: Heliyon
https://www.readbyqxmd.com/read/28044282/are-prepubertal-children-metabolically-comparable-to-well-trained-adult-endurance-athletes
#15
REVIEW
Sébastien Ratel, Anthony J Blazevich
It is well acknowledged that prepubertal children have smaller body dimensions and a poorer mechanical (movement) efficiency, and thus a lower work capacity than adults. However, the scientific evidence indicates that prepubertal children have a greater net contribution of energy derived from aerobic metabolism in exercising muscle and reduced susceptibility to muscular fatigue, which makes them metabolically comparable to well-trained adult endurance athletes. For example, the relative energy contribution from oxidative and non-oxidative (i...
January 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28040344/-other-care-in-parkinson-s-disease-psychological-rehabilitation-therapeutic-education-and-new-technologies
#16
REVIEW
Julia Dupouy, Fabienne Ory-Magne, Christine Brefel-Courbon
Diagnosis of Parkinson's disease (PD) is often traumatic. It is then important to organize this announcement in order to support the patient in this major step of his care course. Anxiety and depression are present in about 50% of PD patients. Besides pharmacological treatment, cognitive-behavioral therapy induces improvement in anxio-depressive symptoms. We have to promote physical activity for PD patients, from the beginning of the disease, because it prevents from deconditioning, improves motor and non-motor symptoms, quality of life, and decreases loneliness...
March 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28000175/adaptation-to-microgravity-deconditioning-and-countermeasures
#17
REVIEW
Kunihiko Tanaka, Naoki Nishimura, Yasuaki Kawai
Humans are generally in standing or sitting positions on Earth during the day. The musculoskeletal system supports these positions and also allows motion. Gravity acting in the longitudinal direction of the body generates a hydrostatic pressure difference and induces footward fluid shift. The vestibular system senses the gravity of the body and reflexively controls the organs. During spaceflight or exposure to microgravity, the load on the musculoskeletal system and hydrostatic pressure difference is diminished...
March 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/27994557/intervertebral-disc-swelling-demonstrated-by-3d-and-water-content-magnetic-resonance-analyses-after-a-3-day-dry-immersion-simulating-microgravity
#18
Loïc Treffel, Karen Mkhitaryan, Stéphane Gellee, Guillemette Gauquelin-Koch, Claude Gharib, Stéphane Blanc, Catherine Millet
Background: Vertebral deconditioning is commonly experienced after space flight and simulation studies. Disc herniation is quadrupled after space flight. Purpose: The main hypothesis formulated by the authors is that microgravity results in intervertebral disc (IVD) swelling. Study Design: The aim of the study was to identify the morphological changes of the spine and their clinical consequences after simulated microgravity by 3-day dry immersion (DI). The experimental protocol was performed on 12 male volunteers using magnetic resonance imaging and spectroscopy before and after DI...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27981906/locomotor-training-and-factors-associated-with-blood-glucose-regulation-after-spinal-cord-injury
#19
Philip D Chilibeck, Pierre A Guertin
BACKGROUND: Individuals with spinal cord injury (SCI) have increased rates of glucose intolerance, insulin insensitivity, and type II diabetes caused mainly by the deconditioning of paralyzed muscle. The purpose of this systematic review was to determine the effectiveness of locomotor training in individuals with SCI on blood glucose control. METHODS: We searched studies on locomotor training for individuals with SCI with outcomes of glucose, insulin, or outcomes that could change glucose handling (i...
December 16, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27941237/disentangling-the-health-benefits-of-walking-from-increased-exposure-to-falls-in-older-people-using-remote-gait-monitoring-and-multi-dimensional-analysis
#20
Matthew A Brodie, Yoshiro Okubo, Janneke Annegarn, Rainer Wieching, Stephen R Lord, Kim Delbaere
Falls and physical deconditioning are two major health problems for older people. Recent advances in remote physiological monitoring provide new opportunities to investigate why walking exercise, with its many health benefits, can both increase and decrease fall rates in older people. In this paper we combine remote wearable device monitoring of daily gait with non-linear multi-dimensional pattern recognition analysis; to disentangle the complex associations between walking, health and fall rates. One week of activities of daily living (ADL) were recorded with a wearable device in 96 independent living older people prior to completing 6 months of exergaming interventions...
January 2017: Physiological Measurement
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