keyword
MENU ▼
Read by QxMD icon Read
search

BFR

keyword
https://www.readbyqxmd.com/read/28324168/the-effect-of-eccentric-exercise-with-blood-flow-restriction-on-neuromuscular-activation-microvascular-oxygenation-and-the-repeated-bout-effect
#1
Jakob D Lauver, Trent E Cayot, Timothy Rotarius, Barry W Scheuermann
PURPOSE: To examine the effect of low-intensity eccentric contractions with and without blood flow restriction (BFR) on microvascular oxygenation, neuromuscular activation, and the repeated bout effect (RBE). METHODS: Participants were randomly assigned to either low-intensity (LI), low-intensity with BFR (LI-BFR), or a control (CON) group. Participants in LI and LI-BFR performed a preconditioning bout of low-intensity eccentric exercise prior to about of maximal eccentric exercise...
March 21, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28319741/influence-of-sampling-approach-on-concentrations-of-legacy-and-novel-brominated-flame-retardants-in-indoor-dust
#2
Layla Salih Al-Omran, Stuart Harrad
The study investigates the impact of sampling method on the concentrations of PBDEs (BDE-28, BDE-47, BDE-99, BDE-100, BDE-153, BDE-154, BDE-183, and BDE-209) and NBFRs (PBEB, EH-TBB, BEH-TEBP, BTBPE and DBDPE) in indoor dust. A total of 36 dust samples were collected from 12 homes in Birmingham, UK (3 samples per home comprising researcher collected dust - both RCD from the living room (RCDL) and bedroom (RCDB), with an additional householder vacuum dust sample - HHVD). BDE-209 was the predominant compound, with average concentrations of 2642, 2336 and 2634 ng/g in RCDL, RCDB and HHVD respectively...
February 22, 2017: Chemosphere
https://www.readbyqxmd.com/read/28318006/inhibiting-the-bfrb-bfd-interaction-in-pseudomonas-aeruginosa-causes-irreversible-iron-accumulation-in-bacterioferritin-and-iron-deficiency-in-the-bacterial-cytosol
#3
Kate Eshelman, Huili Yao, Achala N D Punchi Hewage, Jacqueline J Deay, Josephine R Chandler, Mario Rivera
Iron is an essential nutrient for bacteria but the reactivity of Fe(2+) and the insolubility of Fe(3+) present significant challenges to bacterial cells. Iron storage proteins contribute to ameliorating these challenges by oxidizing Fe(2+) using O2 and H2O2 as electron acceptors, and by compartmentalizing Fe(3+). Two types of iron-storage proteins coexist in bacteria, the ferritins (Ftn) and the heme-containing bacterioferritins (Bfr), but the reasons for their coexistence are largely unknown. P. aeruginosa cells harbor two iron storage proteins (FtnA and BfrB), but nothing is known about their relative contributions to iron homeostasis...
March 20, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28297069/is-early-cannulation-of-an-arteriovenous-fistula-associated-with-early-failure-of-the-fistula
#4
Teun Wilmink, Lee Hollingworth, Tamasin Stevenson, Sarah Powers
OBJECTIVE: To study the effect of early cannulation of arteriovenous fistulas (AVF) on early AVF failure. METHODS: Analysis of two databases of access operations and dialysis sessions from 1/12/2002 till 1/4/2015. Follow-up until 1/4/2016. Functional dialysis use defined as six consecutive cannulations of the AVF with two needles. Early cannulation defined as needling of the AVF within 30 days of creation. Early failure was defined as abandonment for new form of access within 90 days of first cannulation...
March 6, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28259850/blood-flow-restriction-training-in-clinical-musculoskeletal-rehabilitation-a-systematic-review-and-meta-analysis
#5
REVIEW
Luke Hughes, Bruce Paton, Ben Rosenblatt, Conor Gissane, Stephen David Patterson
BACKGROUND AND OBJECTIVE: Low-load exercise training with blood flow restriction (BFR) can increase muscle strength and may offer an effective clinical musculoskeletal (MSK) rehabilitation tool. The aim of this review was to systematically analyse the evidence regarding the effectiveness of this novel training modality in clinical MSK rehabilitation. DESIGN: This is a systematic review and meta-analysis of peer-reviewed literature examining BFR training in clinical MSK rehabilitation (Research Registry; researchregistry91)...
March 4, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28251784/the-acute-muscular-response-to-blood-flow-restricted-exercise-with-very-low-relative-pressure
#6
Matthew B Jessee, Kevin T Mattocks, Samuel L Buckner, J Grant Mouser, Brittany R Counts, Scott J Dankel, Gilberto C Laurentino, Jeremy P Loenneke
To investigate the acute responses to blood flow-restricted (BFR) exercise across low, moderate and high relative pressures. Muscle thickness, maximal voluntary contraction (MVC) and electromyography (EMG) amplitude were assessed following exercise with six different BFR pressures: 0%, 10%, 20%, 30%, 50% and 90% of arterial occlusion pressure (AOP). There were differences between each time point within each condition for muscle thickness, which increased postexercise [+0·47 (0·40, 0·54) cm] and then trended towards baseline...
March 2, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28245009/-tetrabromobisphenol-a-toxicity-environmental-and-occupational-exposures
#7
REVIEW
Monika Jarosiewicz, Bożena Bukowska
Brominated flame retardants (BFR), including tetrabromobisphenol A (TBBPA) represents 25% of the global market of flame retardants. Among them, TBBPA is used on the largest scale (approx. 60%) because of its firebreak properties and widespread occurrence in every day products such as furniture, upholstery, adhesives and electronic equipment. A broad application of TBBPA can contribute to environmental pollution. Tetrabromobisphenol A has been determined in soil, water, river sediments and the atmosphere. Tetrabromobisphenol A is characterized by a high value of coefficient n-octanol/water (log P = 4...
February 28, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28230093/pentabromophenol-suppresses-tgf-%C3%AE-signaling-by-accelerating-degradation-of-type-ii-tgf-%C3%AE-receptors-via-caveolae-mediated-endocytosis
#8
Chun-Lin Chen, Pei-Hua Yang, Yu-Chen Kao, Pei-Yu Chen, Chih-Ling Chung, Shih-Wei Wang
Pentabromophenol (PBP), a brominated flame retardant (BFR), is widely used in various consumer products. BFRs exert adverse health effects such as neurotoxic and endocrine-disrupting effects. In this study, we found that PBP suppressed TGF-β response by accelerating the turnover rate of TGF-β receptors. PBP suppressed TGF-β-mediated cell migration, PAI-1 promoter-driven reporter gene activation, and Smad2/3 phosphorylation in various cell types. Furthermore, PBP abolished TGF-β-mediated repression of E-cadherin expression, in addition to the induction of vimentin expression and N-cadherin and fibronectin upregulation, thus blocking TGF-β-induced epithelial-mesenchymal transition in A549 and NMuMG cells...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224640/low-load-resistance-training-with-low-relative-pressure-produces-muscular-changes-similar-to-high-load-resistance-training
#9
Daeyeol Kim, Jeremy P Loenneke, Xin Ye, Debra A Bemben, Travis W Beck, Rebecca D Larson, Michael G Bemben
INTRODUCTION: The purpose of this study was to compare the acute and chronic response of high-load (HL) resistance training to low-load resistance training with a low blood flow restriction (LL-BFR) pressure. METHODS: Participants completed elbow flexion with either HL or LL-BFR, or non-exercise (CON). In the chronic study, participants in the HL and LL-BFR were trained for 8 weeks to determine differences in muscle size and strength. The acute study examined the changes in Pre/Post torque, muscle swelling, and blood lactate...
February 22, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28219162/-human-exposure-and-thyroid-toxicity-of-polybrominated-diphenyl-ethers
#10
X T Shi, L M Chen, S J Wang, Y Tian
Polybrominated diphenyl ethers (PBDEs), a kind of important Brominated Flame Retardant (BFR), are widely used in electronic products, construction materials and textiles. PBDEs have been detected in many environmental media (including air, water, dust, sediment and food), many animal and human tissues. For their environmental persistence, high bioaccumulative and multiple biotoxicitiies, PBDEs have been viewed as one of the most concerned environmental Endocrine Disrupting Chemicals (EDCs) at present. Although detailed mechanisms are not clear, studies have found that PBDEs can induce toxicity to liver, endocrine system, nervous system, reproduction and immune system...
February 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28214295/blood-flow-restriction-increases-metabolic-stress-but-decreases-muscle-activation-during-high-load-resistance-exercise
#11
Emerson L Teixeira, Renato Barroso, Carla Silva-Batista, Gilberto C Laurentino, Jeremy P Loenneke, Hamilton Roschel, Carlos Ugrinowitsch, Valmor Tricoli
INTRODUCTION: We investigated differences in metabolic stress (lactate) and muscle activation (electromyography; EMG) when high-load resistance exercise (HL) is compared with a condition in which blood flow restriction (BFR) is applied during the exercise or during the rest interval. METHODS: Twelve participants performed HL with BFR during the intervals (BFR-I), during the set (BFR-S), and without BFR. Each condition consisted of 3 sets of 8 repetitions with knee extension at 70% of 1-repetition maximum...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28189029/disruption-of-thyroxine-and-sex-hormones-by-1-2-dibromo-4-1-2-dibromoethyl-cyclohexane-dbe-dbch-in-american-kestrels-falco-sparverius-and-associations-with-reproductive-and-behavioral-changes
#12
Sarah C Marteinson, Vince Palace, Robert J Letcher, Kim J Fernie
1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (DBE-DBCH - formerly TBECH) is an emerging brominated flame retardant (BFR) pollutant with androgen potentiating ability and other endocrine disrupting effects in birds and fish. The objectives of this study were to determine the effects of exposure to environmentally-relevant levels of DBE-DBCH on circulating levels of thyroid and sex steroid hormones in American kestrels, and if hormonal concentrations were related to previously reported changes in reproductive success and courtship behaviors...
April 2017: Environmental Research
https://www.readbyqxmd.com/read/28183863/hemodynamic-responses-are-reduced-with-aerobic-compared-with-resistance-blood-flow-restriction-exercise
#13
Anthony K May, Christopher R Brandner, Stuart A Warmington
The hemodynamics of light-load exercise with an applied blood-flow restriction (BFR) have not been extensively compared between light-intensity, BFR, and high-intensity forms of both resistance and aerobic exercise in the same participant population. Therefore, the purpose of this study was to use a randomized crossover design to examine the hemodynamic responses to resistance and aerobic BFR exercise in comparison with a common high-intensity and light-intensity non-BFR exercise. On separate occasions participants completed a leg-press (resistance) or treadmill (aerobic) trial...
February 2017: Physiological Reports
https://www.readbyqxmd.com/read/28177216/bacterioferritin-structure-dynamics-and-protein-protein-interactions-at-play-in-iron-storage-and-mobilization
#14
Mario Rivera
Despite its essentiality to life, iron presents significant challenges to cells: the exceedingly low solubility of Fe(3+) limits its bioavailability, and the reactivity of Fe(2+) toward H2O2 is a source of the toxic hydroxyl radical (HO(•)). Consequently, cellular levels of free iron are highly regulated to ensure sufficiency while preventing iron-induced toxicity. Relatively little is known about the fate of iron in the bacterial cytosol or how cells balance the need for relatively high cytosolic iron concentrations with the potential toxicity of the nutrient...
February 8, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28149554/body-mass-index-percent-forced-vital-capacity-respiratory-hospitalization-new-staging-for-idiopathic-pulmonary-fibrosis-patients
#15
Tomoo Kishaba, Hiroaki Nagano, Yuichiro Nei, Shin Yamashiro
BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is relentless progressive interstitial lung disease. Evaluating predictor of mortality for IPF patients is crucial. The aim of this study was to evaluate the serial trend of important indicators of prognosis and create a useful staging method for IPF patients. METHODS: We retrospectively searched medical records, pulmonary function tests (PFTs), and chest high resolution computed tomography (HRCT) scans from January 1, 2008 through June 30, 2015 at our hospital...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28149458/cortical-lamina-technique-a-therapeutic-approach-for-lateral-ridge-augmentation-using-guided-bone-regeneration
#16
Shree-Lakshmi Deepika-Penmetsa, Raison Thomas, Tarun-Kumar Baron, Rucha Shah, Dhoom-Singh Mehta
BACKGROUND: The present study aimed at evaluating the efficacy of a novel technique, the bone lamina technique, in horizontal ridge augmentation clinically & radiographically using a combination of allogenic cortical shell, particulate xenograft and resorbable collagen membrane. MATERIAL AND METHODS: Localized horizontal ridge defects, in ten patients (6 male, 4 female), with bucco-palatal ridge width less than 5 mm were included in this study. Localised ridge augmentation was performed using bone lamina technique with mineralised allogenic shell of 1 mm thickness trimmed to the appropriate size using stereo-lithographic models and fixed to the recipient site with stainless steel micro-screws of 1 mm diameter...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28144415/acute-cardiovascular-and-hemodynamic-responses-to-low-intensity-eccentric-resistance-exercise-with-blood-flow-restriction
#17
Behzad Bazgir, Mojtaba Rezazadeh Valojerdi, Hamid Rajabi, Rouhollah Fathi, Seyed Mojtaba Ojaghi, Mohammad Kazem Emami Meybodi, Gabriel R Neto, Mostafa Rahimi, Alireza Asgari
BACKGROUND: Recently it has been suggested that low intensity (LI) resistance exercise (RE) alone or in combination with blood flow restriction (BFR) can be applied for cardiovascular function improvement or rehabilitation. OBJECTIVES: The aim of the present study was to investigate the acute effects of LI eccentric RE with and without BFR on heart rate (HR), rate pressure product (RPP), blood pressure (BP) parameters [systolic, diastolic, and mean arterial pressure (MAP)], oxygen saturation (SpO2) and rate of perceived exertion (RPE)...
December 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/28143367/does-a-resistance-exercise-session-with-continuous-or-intermittent-blood-flow-restriction-promote-muscle-damage-and-increase-oxidative-stress
#18
Gabriel R Neto, Jefferson S Novaes, Verônica P Salerno, Michel M Gonçalves, Gilmário R Batista, Maria S Cirilo-Sousa
The aim of this study was to compare the effect of low-load resistance exercise (LLRE) with continuous and intermittent blood flow restriction (BFR) on the creatine kinase (CK), lactate dehydrogenase (LDH), protein carbonyl (PC), thiobarbituric acid-reactive substance (TBARS) and uric acid (UA) levels in military men. The study included 10 recreationally trained men aged 19 ± 0.82 years who underwent the following experimental protocols in random order on separate days (72-96 h): 4 LLRE sessions at a 20% 1RM (one-repetition maximum [1RM]) with continuous BFR (LLRE + CBFR); 4 LLRE sessions at 20% 1RM with intermittent BFR (LLRE + IBFR) and 4 high-intensity resistance exercise (HIRE) sessions at 80% 1RM...
January 31, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28143359/the-role-of-blood-flow-restriction-training-for-applied-practitioners-a-questionnaire-based-survey
#19
Stephen D Patterson, Christopher R Brandner
The purpose of the study was to investigate the current use of blood flow restriction (BFR) by practitioners during exercise/training. A questionnaire was developed and data were obtained from 250 participants, with 115 stating that they had prescribed BFR as an intervention. The most common exercise intervention used in combination with BFR was resistance exercise (99/115), followed by during passive (30/115) conditions, and during aerobic exercise (22/115). The main outcome measure for using the technique was to increase muscle mass (32...
February 1, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28127587/corticospinal-excitability-changes-following-blood-flow-restriction-training-of-the-tibialis-anterior-a-preliminary-study
#20
Erhard Trillingsgaard Næss-Schmidt, Morten Morthorst, Asger Roer Pedersen, Jørgen Feldbæk Nielsen, Peter William Stubbs
AIM: To examine the neural excitability of projections to the tibialis anterior (TA) following blood flow restriction training (BFRT). This is the first study to examine the TA following BFRT. METHODS: Ten subjects performed each experiment. Experiment one consisted of BFRT at 130 mmHg (BFRT-low). Experiment two consisted of BFRT at 200 mmHg (BFRT-high), training (TR-only) and blood flow restriction at 200 mmHg (BFR-only) performed on separate days. Blood flow restriction was applied to the thigh and training consisted of rapid dorsiflexion contractions against gravity every 10 s for 15-min...
January 2017: Heliyon
keyword
keyword
117434
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"