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https://www.readbyqxmd.com/read/28100130/influence-of-cold-water-immersion-on-limb-blood-flow-after-resistance-exercise
#1
Chris Mawhinney, Helen Jones, David A Low, Daniel J Green, Glyn Howatson, Warren Gregson
This study determined the influence of cold (8°C) and cool (22°C) water immersion on lower limb and cutaneous blood flow following resistance exercise. Twelve males completed 4 sets of 10-repetition maximum squat exercise and were then immersed, semi-reclined, into 8°C or 22°C water for 10-min, or rested in a seated position (control) in a randomized order on different days. Rectal and thigh skin temperature, muscle temperature, thigh and calf skin blood flow and superficial femoral artery blood flow were measured before and after immersion...
January 19, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28088201/anti-allodynic-effect-of-buja-in-a-rat-model-of-oxaliplatin-induced-peripheral-neuropathy-via-spinal-astrocytes-and-pro-inflammatory-cytokines-suppression
#2
Yongjae Jung, Ji Hwan Lee, Woojin Kim, Sang Hyub Yoon, Sun Kwang Kim
BACKGROUND: Oxaliplatin, a widely used anticancer drug against metastatic colorectal cancer, can induce acute peripheral neuropathy, which is characterized by cold and mechanical allodynia. Activation of glial cells (e.g. astrocytes and microglia) and increase of pro-inflammatory cytokines (e.g. IL-1β and TNF-α) in the spinal cord play a crucial role in the pathogenesis of neuropathic pain. Our previous study demonstrated that Gyejigachulbu-Tang (GBT), a herbal complex formula, alleviates oxaliplatin-induced neuropathic pain in rats by suppressing spinal glial activation...
January 14, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28068165/physiological-and-perceived-effects-of-forearm-or-head-cooling-during-simulated-firefighting-activity-and-rehabilitation
#3
Susan Yeargin, Amy L McKenzie, Lindsey E Eberman, J Derek Kingsley, David J Dziedzicki, Patrick Yoder
CONTEXT:  Cooling devices aim to protect firefighters by attenuating a rise in body temperature. Devices for head cooling (HC) while firefighting and forearm cooling (FC) during rehabilitation (RHB) intervals are commonly marketed, but research regarding their efficacy is limited. OBJECTIVE:  To investigate the physiological and perceived effects of HC and FC during firefighting drills and RHB. DESIGN:  Randomized controlled clinical trial...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/28063968/lack-of-genetic-association-between-oct1-abcb1-and-ugt2b7-variants-and-morphine-pharmacokinetics
#4
L M Nielsen, E Sverrisdóttir, T B Stage, S Feddersen, K Brøsen, L L Christrup, A M Drewes, A E Olesen
AIM: A high inter-individual variation in the pharmacokinetics and pharmacodynamics of morphine has been observed. Genetic polymorphisms in genes encoding the organic cation transporter isoform 1 (OCT1), the efflux transporter p-glycoprotein (ABCB1), and the UDP-glucuronosyltransferase-2B7 (UGT2B7) may influence morphine pharmacokinetics and thus, also pharmacodynamics. The aim of this study was to evaluate the association between OCT1, ABCB1, and UGT2B7 variants, and morphine pharmacokinetics and -dynamics in healthy volunteers...
January 4, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28051913/development-of-immersion-vaccine-for-bacterial-cold-water-disease-in-ayu-plecoglossus-altivelis
#5
Hitoshi Nakayama, Mariko Mori, Teisuke Takita, Kiyoshi Yasukawa, Keisuke Tanaka, Shunji Hattori, Hideaki Aikawa, Osamu Hasegawa, Takashi Okamura, Kentarou Takegami, Shogo Motokawa, Masakazu Kuwahara, Kenichi Amano
Flavobacterium psychrophilum (F. psychrophilum) is the causative agent of bacterial cold-water disease (BCWD) that occurs in ayu Plecoglossus altivelis. Formalin-killed cell of F. psychrophilum has long been studied as an immersion vaccine for BCWD. In this study, we explored the possibility of F. psychrophilum collagenase (fpcol) for use as the immersion vaccine. BCWD convalescent ayu sera contained specific IgM antibodies against somatic F. psychrophilum and fpcol, meaning that fpcol is a promising antigen for the vaccine development...
January 4, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28017779/electroencephalographic-frontal-synchrony-and-caudal-asynchrony-during-painful-hand-immersion-in-cold-water
#6
Joshua Levitt, Hyunwoo J Choo, Kelsey A Smith, Brian W LeBlanc, Carl Y Saab
Recent studies in our laboratory showed that cortical theta oscillations correlate with pain in rodent models. In this study, we sought to validate our pre-clinical data using EEG recordings in humans during immersion of the hand in ice cold water, a moderately noxious stimulus. Power spectral analysis shows that an increase in pain score is associated with an increase in power amplitude within a frequency range of 6-7Hz at the frontal (Fz) electrode. These results are consistent with our previous pre-clinical animal studies and the clinical literature...
December 22, 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/27991663/is-the-ice-bath-finally-melting-cwi-is-no-greater-than-active-recovery-upon-local-and-systemic-inflammatory-cellular-stress-in-humans
#7
R Allan, Mawhinney Cr
Over the past decade, significant research has focussed on optimising the recovery of elite athletes. The premise behind such a theory is that sub-optimal recovery often leads to fatigue, reducing the quality of subsequent training sessions and/or competitive performances, whilst potentially hindering adaptive processes. There is now a plethora of research focussing on the impact of one such recovery strategy, cold-water immersion (CWI), and the benefits it may provide post-exercise. This article is protected by copyright...
December 19, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27989852/cortical-and-spinal-assessment-a-comparative-study-using-encephalography-and-the-nociceptive-withdrawal-reflex
#8
I W Fischer, M Gram, T M Hansen, A Brokjaer, C Graversen, L P Malver, C D Mørch, L L Christrup, A M Drewes, A E Olesen
BACKGROUND: Standardized objective methods to assess the analgesic effects of opioids, enable identification of underlying mechanisms of drug actions in the central nervous system. Opioids may exert their effect on both cortical and spinal levels. In this study actions of morphine at both levels were investigated, followed by analysis of a possible correlation between the cortical processing and spinal transmission. METHODS: The study was conducted after a double-blinded, two-way crossover design in thirty-nine healthy participants...
October 29, 2016: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/27930392/pain-catastrophizing-is-not-associated-with-spinal-nociceptive-processing-in-people-with-chronic-widespread-pain
#9
David A Rice, Rosalind S Parker, Gwyn N Lewis, Michal T Kluger, Peter J McNair
OBJECTIVES: Pain catastrophizing has been associated with higher pain intensity, increased risk of developing chronic pain and poorer outcomes after pain treatments. Despite this, the mechanisms by which pain catastrophizing influences pain remain poorly understood. It has been hypothesised that pain catastrophizing may impair descending inhibition of spinal level nociception. The aims of this study were to compare spinal nociceptive processing in people with chronic widespread pain and pain free controls and examine potential relationships between measures of pain catastrophizing and spinal nociception...
December 7, 2016: Clinical Journal of Pain
https://www.readbyqxmd.com/read/27918654/cold-water-immersion-and-contrast-water-therapy-do-not-improve-short-term-recovery-following-resistance-training
#10
Christos K Argus, James R Broatch, Aaron C Petersen, Remco Polman, David J Bishop, Shona Halson
PURPOSE: An athlete's ability to recover quickly is important when there is limited time between training and competition. As such, recovery strategies are commonly used to expedite the recovery process. The purpose of this study was to determine the effectiveness of both cold water immersion (CWI) and contrast water therapy (CWT) compared to control on short-term recovery (<4h) following a single full-body resistance training session. METHODS: Thirteen males (age, 26 ± 5 years; weight, 79 ± 7 kg; height, 177 ± 5 cm) were assessed for perceptual (fatigue and soreness) and performance measures (maximal voluntary isometric contraction (MVC) of the knee extensors, weighted and unweighted countermovement jumps) prior to and immediately following the training session...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27884576/extracorporeal-life-support-for-refractory-cardiac-arrest-from-accidental-hypothermia-a-10-year-experience-in-edinburgh
#11
Maziar Khorsandi, Scott Dougherty, Neil Young, Dean Kerslake, Vincenzo Giordano, Robert Lendrum, William Walker, Vipin Zamvar, Ivan Yim, Renzo Pessotto
BACKGROUND: Cardiac arrest caused by accidental hypothermia is a rare phenomenon with a significant mortality rate if untreated. The consensus is that these patients should be rewarmed with extracorporeal life support (ECLS) with the potential for excellent survival and neurologic outcomes. However, given the lack of robust data and clinical trials, the optimal management of such patients remains elusive. OBJECTIVE: In this single-center study, we looked at the outcomes of all adult patients undergoing salvage ECLS for cardiac arrest caused by accidental hypothermia over a 10-year period from June 2006 to June 2016...
November 21, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27874299/cooling-effectiveness-of-a-modified-cold-water-immersion-method-after-exercise-induced-hyperthermia
#12
Katherine E Luhring, Cory L Butts, Cody R Smith, Jeffrey A Bonacci, Ramon C Ylanan, Matthew S Ganio, Brendon P McDermott
CONTEXT:  Recommended treatment for exertional heat stroke includes whole-body cold-water immersion (CWI). However, remote locations or monetary or spatial restrictions can challenge the feasibility of CWI. Thus, the development of a modified, portable CWI method would allow for optimal treatment of exertional heat stroke in the presence of these challenges. OBJECTIVE:  To determine the cooling rate of modified CWI (tarp-assisted cooling with oscillation [TACO]) after exertional hyperthermia...
November 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27867438/total-sleep-deprivation-and-pain-perception-during-cold-noxious-stimuli-in-humans
#13
Robert A Larson, Jason R Carter
BACKGROUND AND AIMS: A substantial portion of the population suffers from chronic pain leading to significant health care costs and lost productivity. Loss of sleep duration and quality are widely reported in patients suffering from a variety of acute or chronic pain conditions. Conversely, sleep loss has been known to elevate pain perception; thus a potential bi-directional relationship exists between sleep deprivation and pain. To date, the majority of studies examining the relationship between experimentally induced pain and sleep loss have focused on the measurement of pain threshold...
October 2016: Scandinavian Journal of Pain
https://www.readbyqxmd.com/read/27865532/tarp-assisted-cooling-as-a-method-of-whole-body-cooling-in-hyperthermic-individuals
#14
Yuri Hosokawa, William M Adams, Luke N Belval, Lesley W Vandermark, Douglas J Casa
STUDY OBJECTIVE: We investigated the efficacy of tarp-assisted cooling as a body cooling modality. METHODS: Participants exercised on a motorized treadmill in hot conditions (ambient temperature 39.5°C [103.1°F], SD 3.1°C [5.58°F]; relative humidity 38.1% [SD 6.7%]) until they reached exercise-induced hyperthermia. After exercise, participants were cooled with either partial immersion by the tarp-assisted cooling method (water temperature 9.20°C [48.56°F], SD 2...
November 16, 2016: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27851304/1669-bathtub-cold-water-immersion-secondary-to-nonaccidental-trauma-causing-near-drowning
#15
Rujul Desai, Leslie Strickler, Hemant Agarwal
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27812317/trigeminal-cardiac-reflex-and-cerebral-blood-flow-regulation
#16
REVIEW
Dominga Lapi, Rossana Scuri, Antonio Colantuoni
The stimulation of some facial regions is known to trigger the trigemino-cardiac reflex: the main stimulus is represented by the contact of the face with water. This phenomenon called diving reflex induces a set of reactions in the cardiovascular and respiratory systems occurring in all mammals, especially marine (whales, seals). During the immersion of the face in the water, the main responses are aimed at reducing the oxygen consumption of the organism. Accordingly reduction in heart rate, peripheral vasoconstriction, blood pooling in certain organs, especially the heart, and brain and an increase in blood pressure have been reported...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27786541/postexercise-cold-water-immersion-improves-intermittent-high-intensity-exercise-performance-in-normothermia
#17
Avina McCarthy, James Mulligan, Mikel Egaña
A brief cold water immersion between 2 continuous high-intensity exercise bouts improves the performance of the latter compared with passive recovery in the heat. We investigated if this effect is apparent in normothermic conditions (∼19 °C), employing an intermittent high-intensity exercise designed to reflect the work performed at the high-intensity domain in team sports. Fifteen young active men completed 2 exhaustive cycling protocols (Ex1 and Ex2: 12 min at 85% ventilatory threshold (VT) and then an intermittent exercise alternating 30-s at 40% peak power (Ppeak) and 30 s at 90% Ppeak to exhaustion) separated by 15 min of (i) passive rest, (ii) 5-min cold-water immersion at 8 °C, and (iii) 10-min cold-water immersion at 8 °C...
November 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27765401/effects-of-chlorine-based-and-quaternary-ammonium-based-disinfectants-on-the-wettability-of-a-polyvinyl-siloxane-impression-material
#18
Young S Kang, Frederick Rueggeberg, Van Ramos
STATEMENT OF PROBLEM: Polyvinyl siloxane (PVS) impression materials must be cold disinfected before cast pouring to prevent cross-contamination among personnel and patients. However, disinfection may affect the ability of PVS impression materials to provide bubble-free stone surfaces because of the removal of surfactants. PURPOSE: The purpose of this in vitro study was to compare the water contact angles of a PVS impression material treated with either a quaternary ammonium-based (QAB) (DisCide Ultra) or a chlorine-based (CLB) (Dispatch) disinfectant for various exposure times...
October 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27752524/transcriptomic-data-analysis-and-differential-gene-expression-of-antioxidant-pathways-in-king-penguin-juveniles-aptenodytes-patagonicus-before-and-after-acclimatization-to-marine-life
#19
Benjamin Rey, Cyril Dégletagne, Claude Duchamp
In this article, we present differentially expressed gene profiles in the pectoralis muscle of wild juvenile king penguins that were either naturally acclimated to cold marine environment or experimentally immersed in cold water as compared with penguin juveniles that never experienced cold water immersion. Transcriptomic data were obtained by hybridizing penguins total cDNA on Affymetrix GeneChip Chicken Genome arrays and analyzed using maxRS algorithm, "Transcriptome analysis in non-model species: a new method for the analysis of heterologous hybridization on microarrays" (Dégletagne et al...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27704555/the-effects-of-cold-water-immersion-and-active-recovery-on-inflammation-and-cell-stress-responses-in-human-skeletal-muscle-after-resistance-exercise
#20
Jonathan M Peake, Llion A Roberts, Vandre C Figueiredo, Ingrid Egner, Simone Krog, Sigve N Aas, Katsuhiko Suzuki, James F Markworth, Jeff S Coombes, David Cameron-Smith, Truls Raastad
KEY POINTS: Cold water immersion and active recovery are common post-exercise recovery treatments. A key assumption about the benefits of cold water immersion is that it reduces inflammation in skeletal muscle. However, no data are available from humans to support this notion. We compared the effects of cold water immersion and active recovery on inflammatory and cellular stress responses in skeletal muscle from exercise-trained men 2, 24 and 48 h during recovery after acute resistance exercise...
October 4, 2016: Journal of Physiology
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