keyword
MENU ▼
Read by QxMD icon Read
search

Hypoxic training

keyword
https://www.readbyqxmd.com/read/29780328/contractile-activity-is-necessary-to-trigger-intermittent-hypobaric-hypoxia-induced-fiber-size-and-vascular-adaptations-in-skeletal-muscle
#1
David Rizo-Roca, Jèssica B Bonet, Büsra Ínal, Juan Gabriel Ríos-Kristjánsson, Teresa Pagès, Ginés Viscor, Joan R Torrella
Altitude training has become increasingly popular in recent decades. Its central and peripheral effects are well-described; however, few studies have analyzed the effects of intermittent hypobaric hypoxia (IHH) alone on skeletal muscle morphofunctionality. Here, we studied the effects of IHH on different myofiber morphofunctional parameters, investigating whether contractile activity is required to elicit hypoxia-induced adaptations in trained rats. Eighteen male Sprague-Dawley rats were trained 1 month and then divided into three groups: (1) rats in normobaria (trained normobaric inactive, TNI); (2) rats subjected daily to a 4-h exposure to hypobaric hypoxia equivalent to 4,000 m (trained hypobaric inactive, THI); and (3) rats subjected daily to a 4-h exposure to hypobaric hypoxia just before performing light exercise (trained hypobaric active, THA)...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29695978/the-effects-of-altitude-training-on-erythropoietic-response-and-hematological-variables-in-adult-athletes-a-narrative-review
#2
REVIEW
Kamila Płoszczyca, Józef Langfort, Miłosz Czuba
Background: One of the goals of altitude training is to increase blood oxygen-carrying capacity in order to improve sea-level endurance performance in athletes. The elevated erythropoietin (EPO) production in hypoxia is a key factor in the achievement of enhanced hematological variables. The level of the EPO increase and acceleration of erythropoiesis depend on the duration of exposure and degree of hypoxia. Furthermore, many other factors may affect the hematological response to altitude training. Aim: The purpose of this narrative review was to: (1) analyze the kinetics of EPO and hematological variables during and after altitude training; (2) summarize the current state of knowledge about the possible causes of individual or cohort differences in EPO and hematological response to altitude training; (3) formulate practical guidelines for athletes to improve the efficiency of altitude training...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29681183/neonatal-hypoxic-ischemic-encephalopathy-emerging-therapeutic-strategies-based-on-pathophysiologic-phases-of-the-injury
#3
Qiuli Wang, Hongyan Lv, Lixin Lu, Pengshun Ren, Lianxiang Li
Neonatal hypoxic ischemic encephalopathy (HIE) is an important cause of neonatal death and disability. At present, there is no unified standard and specialized treatment method for neonatal HIE. In clinical practice, we have found that a gap remains between preclinical medical research and clinical application in treatment of neonatal HIE. To promote an organic combination of preclinical research and clinical application, we propose the different phases as intervention targets, based on the pathophysiologic changes in phases I, II, and III of neonatal HIE; moreover, we suggest transformative medicine as a principle that may improve the therapeutic effect by blocking the progression of the disease to an irreversible stage...
April 22, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29652303/-respiratory-hypercapnic-hypoxic-training-is-an-effective-component-of-complex-therapy-of-polyneuropathy-in-children-with-diabetes-type-1
#4
K V Smirnov, Yu V Smirnova, V P Kulikov, O M Nazarkina
AIM: To study the effectiveness of respiratory hypercapnic-hypoxic training in complex treatment of neuropathy due to diabetes type 1. MATERIAL AND METHODS: Fifty children, 31 girls and 19 boys, were examined. The inclusion criteria were the presence of polyneuropathy, verified on the basis of clinical data and electromyographic changes. The patients were divided into 2 groups: the main group (n=25, 15 girls and 10 boys, mean age 12.9±1.8 years (M±SD) and the comparison group (n=25, 16 girls and 9 boys, mean age 13...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29575698/effects-of-short-term-normobaric-hypoxic-walking-training-on-energetics-and-mechanics-of-gait-in-adults-with-obesity
#5
Aitor Fernández Menéndez, Gilles Saudan, Ludovic Sperisen, Didier Hans, Mathieu Saubade, Grégoire P Millet, Davide Malatesta
OBJECTIVE: The aim of this study was to compare the effects of short-term hypoxic versus normoxic training at preferred walking speed (PWS) on energetics, mechanics, efficiency, and metabolic risk markers in individuals with obesity. METHODS: Twenty-three subjects with obesity performed nine 1-hour sessions at PWS under hypoxia (3,000 m, n = 12; BMI: 34.0 ± 0.8 kg/m2 ) or normoxia (360 m, n = 11; BMI: 32.9 ± 0.8 kg/m2 ). Participants performed six 5-minute walking trials at different speeds (PWS, 0...
March 25, 2018: Obesity
https://www.readbyqxmd.com/read/29551528/challenges-of-military-health-service-support-in-mountain-warfare
#6
REVIEW
Raimund Lechner, Thomas Küpper, Markus Tannheimer
INTRODUCTION: History is full of examples of the influence of the mountain environment on warfare. The aim of this article is to identify the main environmental hazards and summarize countermeasures to mitigate the impact of this unique environment. METHODS: A selective PubMed and Internet search was conducted. Additionally, we searched bibliographies for useful supplemental literature and included the recommendations of the leading mountain medicine and wilderness medicine societies...
March 16, 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29540636/physical-exercise-reduces-cytotoxicity-and-up-regulates-nrf2-and-upr-expression-in-circulating-cells-of-peripheral-artery-disease-patients-an-hypoxic-adaptation
#7
Anna Maria Fratta Pasini, Chiara Stranieri, Anna Maria Rigoni, Sergio De Marchi, Denise Peserico, Chiara Mozzini, Luciano Cominacini, Ulisse Garbin
AIM: Ischemia-reperfusion (I-R) produces reactive oxygen species (ROS) that damage cells and favour cytotoxicity and apoptosis in peripheral artery disease (PAD) patients. Since brief episodes of I-R (ischemic conditioning) protect cells against ischemic harms, we evaluated whether a short-course of supervised treadmill training, characterized by repeated episodes of I-R, makes peripheral blood mononuclear cells (PBMCs) from PAD patients with intermittent claudication more resistant to I-R injuries by reducing oxidative stress and by inducing an adaptative response of unfolded protein response (UPR) and nuclear factor-E2-related factor (Nrf2) pathway expression...
March 13, 2018: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29504433/therapeutic-hypothermia-for-neonatal-hypoxic-ischemic-encephalopathy-magnetic-resonance-imaging-findings-and-neurological-outcomes-in-a-brazilian-cohort
#8
Renato S Procianoy, Andrea Lucia Corso, Maria Gabriela Longo, Leonardo Vedolin, Rita C Silveira
OBJECTIVE: To determine the neurodevelopment outcomes after therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy (HIE) and identify the neonatal magnetic resonance imaging (MRI) findings associated with neurological outcome in a middle-income country. STUDY DESIGN: All infants born after 35 completed weeks' gestation with signs of moderate to severe encephalopathy and evidence of perinatal asphyxia before 6 hours of life were submitted to whole-body hypothermia and were imaged at 18 ± 8...
March 13, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29472870/high-intensity-interval-training-in-normobaric-hypoxia-leads-to-greater-body-fat-loss-in-overweight-obese-women-than-high-intensity-interval-training-in-normoxia
#9
Alba Camacho-Cardenosa, Marta Camacho-Cardenosa, Martin Burtscher, Ismael Martínez-Guardado, Rafael Timon, Javier Brazo-Sayavera, Guillermo Olcina
A moderate hypoxic stimulus is considered a promising therapeutic modality for several pathological states including obesity. There is scientific evidence suggesting that when hypoxia and physical activity are combined, they could provide benefits for the obese population. The aim of the present study was to investigate if exposure to hypoxia combined with two different protocols of high-intensity interval exercise in overweight/obese women was more effective compared with exercise in normoxia. Study participants included 82 overweight/obese women, who started a 12 week program of 36 sessions, and were randomly divided into four groups: (1) aerobic interval training in hypoxia (AitH; FiO2 = 17...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29431548/impact-of-energy-availability-health-and-sex-on-hemoglobin-mass-responses-following-lhth-altitude-training-in-elite-female-and-male-distance-athletes
#10
Ida A Heikura, Louise M Burke, Dan Bergland, Arja L T Uusitalo, Antti A Mero, Trent Stellingwerff
BACKGROUND: We investigated the effects of sex, energy availability (EA), and health status on the change in hemoglobin mass (ΔHbmass) in elite endurance athletes over ~3 to 4 weeks of Live-High/Train-High altitude training (Flagstaff, AZ, 2135m; n=27 females; n=21 males; 27% 2016 Olympians). METHODS: Pre- and post-camp Hbmass (optimized CO re-breathing method) and iron status were measured, EA was estimated via food and training logs and Low Energy Availability in Females Questionnaire (LEAF-Q) and a general injury/illness questionnaire was completed...
February 12, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29423544/high-intensity-interval-training-in-hypoxia-does-not-affect-muscle-hif-responses-to-acute-hypoxia-in-humans
#11
Stefan De Smet, Gommaar D'Hulst, Chiel Poffé, Ruud Van Thienen, Emanuele Berardi, Peter Hespel
PURPOSE: The myocellular response to hypoxia is primarily regulated by hypoxia-inducible factors (HIFs). HIFs thus conceivably are implicated in muscular adaptation to altitude training. Therefore, we investigated the effect of hypoxic versus normoxic training during a period of prolonged hypoxia ('living high') on muscle HIF activation during acute ischaemia. METHODS: Ten young male volunteers lived in normobaric hypoxia for 5 weeks (5 days per week, ~ 15.5 h per day, Fi O2 : 16...
April 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29420150/adaptations-in-muscle-oxidative-capacity-fiber-size-and-oxygen-supply-capacity-after-repeated-sprint-training-in-hypoxia-combined-with-chronic-hypoxic-exposure
#12
Stephan van der Zwaard, Franck Brocherie, Bengt L G Kom, Grégoire P Millet, Louise Deldicque, Willem J van der Laarse, Olivier Girard, Richard T Jaspers
In this study, we investigate adaptations in muscle oxidative capacity, fiber size and oxygen supply capacity in team-sport athletes after six repeated-sprint sessions in normobaric hypoxia or normoxia combined with 14 days of chronic normobaric hypoxic exposure. Lowland elite field hockey players resided at simulated altitude ({greater than or equal to}14 h∙d-1 at 2800-3000 m) and performed regular training plus six repeated-sprint sessions in normobaric hypoxia (3000 m; LHTLH; n=6) or normoxia (0 m, LHTL; n=6) or lived at sea level with regular training only (LLTL; n=6)...
February 8, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29411074/bridging-the-divide-challenges-and-opportunities-for-public-sector-agricultural-professionals-working-with-amish-and-mennonite-producers-on-conservation
#13
Caroline Brock, Jessica D Ulrich-Schad, Linda Prokopy
As Amish and Old Order and Conservative Mennonite (i.e., Plain) farmers increase their presence in the agricultural sector, it is crucial for public sector agricultural professionals to effectively work with them to mediate nonpoint source pollution and address issues like the hypoxic zone in the Gulf of Mexico. However, there is a dearth of research on how public sector agricultural professionals can better work with Plain producers on environmental management. There are also few training resources for those working with this key, yet hard to reach, population...
May 2018: Environmental Management
https://www.readbyqxmd.com/read/29400616/repeated-sprint-training-in-hypoxia-induced-by-voluntary-hypoventilation-improves-running-repeated-sprint-ability-in-rugby-players
#14
Charly Fornasier-Santos, Grégoire P Millet, Xavier Woorons
PURPOSE: The goal of this study was to determine the effects of repeated-sprint training in hypoxia induced by voluntary hypoventilation at low lung volume (VHL) on running repeated-sprint ability (RSA) in team-sport players. METHODS: Twenty-one highly trained rugby players performed, over a 4-week period, seven sessions of repeated 40-m sprints either with VHL (RSH-VHL, n = 11) or with normal breathing (RSN, n = 10). Before (Pre-) and after training (Post-), performance was assessed with an RSA test (40-m all-out sprints with a departure every 30 s) until task failure (85% of the reference velocity assessed in an isolated sprint)...
February 5, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29394148/effects-of-intermittent-hypoxic-training-performed-at-high-hypoxia-level-on-exercise-performance-in-highly-trained-runners
#15
Anthony M J Sanchez, Fabio Borrani
This study exanimated the effects of intermittent hypoxic training (IHT) conducted at a high level of hypoxia with recovery at ambient air on aerobic/anaerobic capacities at sea level and hematological variations. According to a double-blind randomized design, fifteen highly endurance-trained runners completed a 6-weeks regimented training with 3 sessions per week consisting of intermittent runs (6x work-rest ratio of 5':5') on a treadmill at 80-85% of maximal aerobic speed ([Formula: see text]). Nine athletes (hypoxic group, HG) performed the exercise bouts at FI02  = 10...
February 2, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29378987/incidence-of-postoperative-residual-paralysis-in-a-nigerian-teaching-hospital
#16
A A Majekodunmi, O A Ikotun, O D Oladokun
BACKGROUND: Postoperative residual paralysis (PORP) is a known risk factor after general anesthesia (GA) for critical respiratory events and increased postoperative morbidity. PORP is defined as a train-of-four ratio (TOFR) of <0.9 using acceleromyography (AMG). TOFR <0.9 has been associated with increased risk of aspiration, obstruction of the upper airway and an impaired hypoxic ventilatory response. AIM: The aim of this study was to determine the incidence of PORP, associated factors related with its occurrence and critical respiratory events in the postanesthesia recovery room (PAR) at our institution...
December 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29376968/-the-non-medicamentous-methods-for-the-prevention-and-treatment-of-the-patients-presenting-with-neurocirculatory-asthenia-and-concomitant-enhanced-meteosensitivity
#17
COMPARATIVE STUDY
A I Uyanaeva, Y Y Tupitsyna, E A Turova, N V Lvova, I V Ksenofontova
OBJECTIVE: The relevance of the problem stated in the title of this article comes from the significant increase in the prevalence of the functional cardiovascular disorders having been documented during the past years especially such as circulatory asthenia that most frequently affects the young people of the working age suffering from the systemic neurogenic imbalance in the organism and can be seriously aggravated by the influence of biotropic weather conditions and be responsible for enhanced meteosensitivity that has negative effect on the quality of life and impairs the effectiveness of the therapeutic interventions...
December 5, 2017: Voprosy Kurortologii, Fizioterapii, i Lechebnoĭ Fizicheskoĭ Kultury
https://www.readbyqxmd.com/read/29374637/emergency-percutaneous-transtracheal-jet-ventilation-in-a-hypoxic-cardiopulmonary-resuscitation-setting-a-life-saving-rescue-technique
#18
Phi-Vu Dong, Leontien Ter Horst, Ralf Krage
(Un)anticipated difficult airway remains a challenge in anaesthesia. Percutaneous transtracheal jet ventilation has been shown to be an adequate technique for temporary oxygenation and ventilation and has been described as an acknowledged method in emergency settings of an unanticipated difficult airway. These emergency settings can be considered as low incidence high-risk situations. Both technical and non-technical skills should be trained regularly as education and simulation continues to play an important factor in patient safety...
January 26, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29335023/early-neonatal-glutaric-aciduria-type-i-hidden-by-perinatal-asphyxia-a-case-report
#19
Giacomo Biasucci, Nicola Morelli, Federica Natacci, Massimo Mastrangelo
BACKGROUND: Perinatal asphyxia (PA) occurs in about 2 to 10 per 1000 live full-term births. Although neonatal epileptic seizures are observed in up to 60% of cases, PA may mimic or subtend other conditions. Hypoxia related brain injury is particularly relevant, as it may have permanent effects on neuropsychomotor development. Antepartum obstetric conditions, may, in turn, lead to hypoxic-ischemic damage to the fetus and the newborn, often underlying PA. Herein, a case of PA that hid and triggered signs and symptoms of Glutaric Aciduria type I (GA-I), is reported...
January 15, 2018: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/29250782/fresh-stillborn-and-severely-asphyxiated-neonates-share-a-common-hypoxic-ischemic-pathway
#20
Hege L Ersdal, Joar Eilevstjønn, Jørgen E Linde, Anita Yeconia, Estomih R Mduma, Hussein Kidanto, Jeffrey Perlman
OBJECTIVE: To characterize, among non-breathing flaccid neonates at delivery, immediate heartrate and responses to ventilation in relation to the clinical diagnosis of fresh stillbirth (FSB) or early neonatal death (END) within 24 hours. METHODS: The present cross-sectional study included all deliveries at Haydom Hospital in rural Tanzania between July 1, 2013, and July 31, 2016. Ventilation parameters and heartrate were recorded by monitors with ventilation and dry-electrocardiography sensors...
December 17, 2017: International Journal of Gynaecology and Obstetrics
keyword
keyword
35788
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"