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https://www.readbyqxmd.com/read/28207294/validity-of-core-temperature-measurements-at-3-rectal-depths-during-rest-exercise-cold-water-immersion-and-recovery
#1
Kevin C Miller, Lexie E Hughes, Blaine C Long, William M Adams, Douglas J Casa
CONTEXT:  No evidence-based recommendation exists regarding how far clinicians should insert a rectal thermistor to obtain the most valid estimate of core temperature. Knowing the validity of temperatures at different rectal depths has implications for exertional heat-stroke (EHS) management. OBJECTIVE:  To determine whether rectal temperature (Trec) taken at 4 cm, 10 cm, or 15 cm from the anal sphincter provides the most valid estimate of core temperature (as determined by esophageal temperature [Teso]) during similar stressors an athlete with EHS may experience...
February 16, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28193437/effects-of-calcium-treatment-and-low-temperature-storage-on-cell-wall-polysaccharide-nanostructures-and-quality-of-postharvest-apricot-prunus-armeniaca
#2
Hui Liu, Fusheng Chen, Shaojuan Lai, Junrui Tao, Hongshun Yang, Zhonggao Jiao
Cell wall polysaccharides play an important role in postharvest fruit texture softening. Effects of calcium treatment combined with cold storage on the physical properties, polysaccharide content and nanostructure of apricots were investigated. Apricots were immersed in distilled water, 1% or 3% w/v calcium chloride, then stored at 5°C or 10°C. Storage at 5°C significantly improved apricot quality and shelf life. Significant changes in the concentration and nanostructure of cell wall pectins and hemicelluloses revealed their disassembly and degradation during apricot storage...
June 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28177718/the-physiological-response-to-cold-water-immersion-following-a-mixed-martial-arts-training-session
#3
Angus Lindsay, Sam Carr, Sean Cross, Carl Petersen, John G Lewis, Steven P Gieseg
Combative sport is one of the most physically intense forms of exercise, yet the effect of recovery interventions has been largely unexplored. We investigated the effect of cold water immersion on structural, inflammatory and physiological stress biomarkers following a mixed martial arts contest preparation training session in comparison to passive recovery. Semi-professional MMA competitors (n=15) were randomly assigned to a cold water immersion (15 min at 10°C) or passive recovery protocol (ambient air) completed immediately following a contest preparation training session...
January 17, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28166940/a-10-day-confinement-to-normobaric-hypoxia-impairs-toe-but-not-finger-temperature-response-during-local-cold-stress
#4
Stylianos N Kounalakis, Michail E Keramidas, Mojca Amon, Ola Eiken, Igor B Mekjavic
The study examined the effects of a 10-day normobaric hypoxic confinement on the finger and toe temperature responses to local cooling. Eight male lowlanders underwent a normoxic (NC) and, in a separate occasion, a normobaric hypoxic confinement (HC; FO2: 0.154; simulated altitude ~3400m). Before and after each confinement, subjects immersed for 30min their right hand and, in a different session, their right foot in 8°C water, while breathing either room air (AIR) or a hypoxic gas mixture (HYPO). Throughout the cold-water immersion tests, thermal responses were monitored with thermocouples on fingers and toes...
February 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28160059/finger-cold-induced-vasodilation-of-older-korean-female-divers-haenyeo-effects-of-chronic-cold-exposure-and-aging
#5
Joo-Young Lee, Joonhee Park, Eunsook Koh, Seongwon Cha
The aim of the present study was to evaluate the local cold tolerance of older Korean female divers, haenyeo (N = 22) in terms of cold acclimatization and ageing. As control groups, older non-diving females (N = 25) and young females from a rural area (N = 15) and an urban area (N = 51) participated in this study. To evaluate local cold tolerance, finger cold-induced vasodilation (CIVD) during finger immersion of 4 °C water was examined. As a result, older haenyeos showed greater minimum finger temperature and recovery finger temperature than older non-diving females (P < 0...
February 3, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28150163/fatigue-and-recovery-in-rugby-a-review
#6
REVIEW
Francisco Tavares, Tiaki Brett Smith, Matthew Driller
The physical demands and combative nature of rugby lead to notable levels of muscle damage. In professional rugby, athletes only have a limited timeframe to recover following training sessions and competition. Through the implementation of recovery strategies, sport scientists, practitioners and coaches have sought to reduce the effect of fatigue and allow athletes to recover faster. Although some studies demonstrate that recovery strategies are extensively used by rugby athletes, the research remains equivocal concerning the efficacy of recovery strategies in rugby...
February 2, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28145015/cold-water-immersion-mechanisms-for-recovery-following-exercise-cellular-stress-and-inflammation-require-closer-examination
#7
Gillian White, Jessica E Caterini
No abstract text is available yet for this article.
February 1, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28141620/cold-water-mediates-greater-reductions-in-limb-blood-flow-than-whole-body-cryotherapy
#8
Chris Mawhinney, David A Low, Helen Jones, Daniel J Green, Joseph T Costello, Warren Gregson
PURPOSE: Cold-water immersion (CWI) and whole body cryotherapy (WBC) are widely used recovery methods in an attempt to limit exercise-induced muscle damage, soreness and functional deficits after strenuous exercise. The aim of this study was to compare the effects of ecologically-valid CWI and WBC protocols on post-exercise lower limb thermoregulatory, femoral artery and cutaneous blood flow responses. METHODS: Ten males completed a continuous cycle exercise protocol at 70% maximal oxygen uptake until a rectal temperature of 38°C was attained...
January 30, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28122036/temporal-and-spatial-variations-of-bacterial-and-faunal-communities-associated-with-deep-sea-wood-falls
#9
Petra Pop Ristova, Christina Bienhold, Frank Wenzhöfer, Pamela E Rossel, Antje Boetius
Sinking of large organic food falls i.e. kelp, wood and whale carcasses to the oligotrophic deep-sea floor promotes the establishment of locally highly productive and diverse ecosystems, often with specifically adapted benthic communities. However, the fragmented spatial distribution and small area poses challenges for the dispersal of their microbial and faunal communities. Our study focused on the temporal dynamics and spatial distributions of sunken wood bacterial communities, which were deployed in the vicinity of different cold seeps in the Eastern Mediterranean and the Norwegian deep-seas...
2017: PloS One
https://www.readbyqxmd.com/read/28116880/post-exercise-recovery-of-biological-clinical-and-metabolic-variables-after-different-temperatures-and-durations-of-cold-water-immersion-a-randomized-clinical-trial
#10
Franciele M Vanderlei, Maíra C DE Albuquerque, Aline C DE Almeida, Aryane F Machado, Jayme Netto, Carlos M Pastre
BACKGROUND: Cold water immersion (CWI) is a commonly used recuperative strategy. However there is a lack of standardization of protocols considering the duration and temperature of application of the technique and the stress model. Therefore is it important to study the issue of dose response in a specific stress model. Thus the objective was to analyze and compare the effects of CWI during intense post-exercise recovery using different durations and temperatures of immersion. METHODS: 105 male individuals were divided into five groups: one control group (CG) and four recovery groups (G1: 5' at 9±1°C; G2: 5' at 14±1oC; G3: 15' at 9±1°C; G4: 15' at 14±1°C)...
January 23, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28116265/glomus-tumor-a-rarity-m-r-i-a-big-help-in-early-diagnosis
#11
Dharam Singh, R S Garg, Vikas, Yashika Garg, Vijinder Arora
INTRODUCTION: Glomus tumor is a rare benign tumor arising from neuroarterial plexus concentrated beneath the nailbed usually in women of age group 20-40 yrs. The plexus is an arteriovenous anastomosis functioning without intermediary capillary bed, we report a case of glomus tumor affecting the nailbed of left little finger with characteristic periodic, spontaneous excruciating pain and temperature related algesia for the last 6 months. MRI helped in clinching the diagnosis at an early stage...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28105632/the-micro-taphonomy-of-cold-differential-microcracking-in-response-to-experimental-cold-stresses
#12
Chantal Turpin
Cold is a central feature of environments at higher latitudes and elevations. Thus, cold-induced taphonomic changes are relevant in many forensic contexts. Fifty-two lamb bone segments were used to assess the impact of cold, freeze-thaw cycles, freeze-drying, and water immersion on microstructural cracking of bone in a series of controlled exposure experiments. For each bone segment, three thin sections were examined under a light microscope. Cold exposure caused taphonomic changes in the form of microscopic cracking...
January 20, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28100130/influence-of-cold-water-immersion-on-limb-blood-flow-after-resistance-exercise
#13
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
#14
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
#15
RANDOMIZED CONTROLLED TRIAL
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
#16
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...
March 1, 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
#17
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
#18
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 23, 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
#19
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
#20
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
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