keyword
https://read.qxmd.com/read/38528599/local-alternating-heat-and-cold-stimulation-affects-hemodynamics-and-oxygenation-in-fatigued-muscle-tissue-and-autonomic-nervous-activity-a-single-arm-interventional-study
#1
JOURNAL ARTICLE
Tomonori Sawada, Hiroki Okawara, Daisuke Nakashima, Kentaro Aoki, Mira Namba, Shuhei Iwabuchi, Yoshinori Katsumata, Masaya Nakamura, Takeo Nagura
BACKGROUND: Local alternating heat and cold stimulation as an alternative to contrast bath may cause intermittent vasoconstriction and vasodilation, inducing a vascular pumping effect and consequently promoting increased tissue blood flow and oxygenation. This study aimed to examine the effects of local alternating heat and cold stimulation, using a wearable thermal device, on the hemodynamics of fatigued muscle tissue and autonomic nervous activity. METHODS: Twenty healthy individuals experienced fatigue in the periarticular muscles of the shoulder joint due to a typing task...
March 25, 2024: Journal of Physiological Anthropology
https://read.qxmd.com/read/38388759/observations-of-cold-induced-vasodilation-in-persons-with-spinal-cord-injuries
#2
JOURNAL ARTICLE
Yasuhisa Fujita, Yoshi-Ichiro Kamijo, Tokio Kinoshita, Takamasa Hashizaki, Kouta Murai, Tatsuya Yoshikawa, Yasunori Umemoto, Chikako Kaminaka, Manabu Shibasaki, Fumihiro Tajima, Yukihide Nishimura
STUDY DESIGN: Acute experimental study. OBJECTIVES: Cold-induced vasodilation is a local mechanism of protection against frostbite in non-injured persons. We assessed whether an increase in skin blood flow (SkBF) during local cooling (LC) was observed in individuals with spinal cord injuries (SCIs) and if the response patterns differed between region levels or sites. SETTING: Laboratory of Wakayama Medical University and the affiliated clinics, Japan...
February 22, 2024: Spinal Cord
https://read.qxmd.com/read/38350937/heart-rate-variability-and-cold-induced-vascular-dilation-after-stimulation-of-two-different-areas-of-the-ear-a-prospective-single-blinded-randomized-crossover-study
#3
JOURNAL ARTICLE
Emmanuel Sagui, Damien Claverie, Wahiba Bidaut, Laurent Grelot
BACKGROUND: Both noninvasive transauricular vagus nerve stimulation (taVNS) and traditional medical practice (TMP), such as auriculotherapy, use the auricle as a starting point for stimulation, but with two different conceptual frameworks: taVNS depends on vagal afferences to account for its effects, whereas TMP requires stimulation of the ear with high topographical accuracy regardless of the afferent nerves. The aim of this study was to measure heart rate variability (HRV) and cold water-induced vasodilation (CIVD) after puncturing two different ear points with the same afference but that should have opposite effects according to TMP...
February 13, 2024: BMC complementary medicine and therapies
https://read.qxmd.com/read/38150009/short-term-cocoa-bioflavanol-supplementation-does-not-improve-cold-induced-vasodilation-in-young-healthy-adults
#4
JOURNAL ARTICLE
Billie K Alba, Andrew M Greenfield, Beau R Yurkevicius, Myra L Jones, John W Castellani
PURPOSE: Cold-induced vasodilation (CIVD) is an oscillatory rise in blood flow to glabrous skin that occurs in cold-exposed extremities. Dietary flavanols increase bioavailable nitric oxide, a proposed mediator of CIVD through active vasodilation and/or withdrawal of sympathetic vascular smooth muscle tone. However, no studies have examined the effects of flavanol intake on extremity skin perfusion during cold exposure. We tested the hypothesis that acute and 8-day flavanol supplementation would augment CIVD during single-digit cold water immersion (CWI)...
December 27, 2023: European Journal of Applied Physiology
https://read.qxmd.com/read/37864008/cold-induced-vasodilation-during-sequential-immersions-of-the-hand
#5
JOURNAL ARTICLE
Rebecca S Weller, Hein A Daanen, Rebecca J McClintock, Nicholas A Roberts, Timothy L Dunn, Douglas M Jones
A common practice for those operating in cold environments includes repetitive glove doffing and donning to perform specific tasks, which creates a repetitive cycle of hand cooling and rewarming. This study aimed to determine the influence of intraday repeated hand cooling on cold-induced vasodilation (CIVD), sympathetic activation, and finger/hand temperature recovery. Eight males and two females (mean ± SD age: 28 ± 5 year; height: 181 ± 9 cm; weight: 79...
October 21, 2023: European Journal of Applied Physiology
https://read.qxmd.com/read/37686734/hesperetin-7-o-glucoside-%C3%AE-cyclodextrin-inclusion-complex-induces-acute-vasodilator-effect-to-inhibit-the-cold-sensation-response-during-localized-cold-stimulate-stress-in-healthy-human-subjects-a-randomized-double-blind-crossover-and-placebo-controlled-study
#6
JOURNAL ARTICLE
Mahendra P Kapoor, Masamitsu Moriwaki, Aya Abe, So Morishima, Makoto Ozeki, Norio Sato
Hesperetin, a citrus flavonoid, exerts vasodilation and is expected to improve endothelial function and alleviate cold sensation by activating nervous system thermal transduction pathways. In this randomized, double-blind, crossover, and placebo-controlled study, the purpose was to assess the effect of an orally administered highly bioavailable soluble inclusion complex of hesperetine-7- O -glucoside with β-cyclodextrin (HEPT7G/βCD; SunActive® HES/HCD) on cold sensation response during localized cold-stimulated stress in healthy humans...
August 24, 2023: Nutrients
https://read.qxmd.com/read/37541711/cold-hands-or-feet-is-it-raynaud-s-or-not
#7
REVIEW
Daniella Kadian-Dodov
Raynaud's phenomenon is an exaggerated response to cold stimuli that may be primary or secondary. The diagnosis relies on patient history and physical examination to distinguish RP from other vasomotor dysfunction (e.g. acrocyanosis, pernio, small fiber neuropathy with vasomotor symptoms, and complex regional pain syndrome). Achenbach syndrome, or spontaneous venous hemorrhage, may also be mistaken for RP but is a self-limiting phenomenon. Laboratory evaluation and vascular diagnostic testing may identify SRP causes...
September 2023: Medical Clinics of North America
https://read.qxmd.com/read/37531313/hybrid-photoacoustic-ultrasound-imaging-system-for-cold-induced-vasoconstriction-and-vasodilation-monitoring
#8
JOURNAL ARTICLE
Ruochong Zhang, Xiuting Li, Ghayathri Balasundaram, Baocheng Li, Yi Qi, Anindita Santosa, Tze Chin Tan, Malini Olivo, Renzhe Bi
Lewis hunting reaction refers to the alternating cold-induced vasoconstriction and dilation in extremities, whose underlying mechanism is complex. While numerous studies reported this intriguing phenomenon by measuring cutaneous temperature fluctuation under cold exposure, few of them tracked peripheral vascular responses in real-time, lacking a non-invasive and quantitative imaging tool. To better monitor hunting reaction and diagnose relevant diseases, we developed a hybrid photoacoustic ultrasound (PAUS) tomography system to monitor finger vessels' dynamic response to cold, together with simultaneous temperature measurement...
August 2, 2023: IEEE Transactions on Bio-medical Engineering
https://read.qxmd.com/read/37405458/the-effect-of-temperature-on-vascular-smooth-muscle-cooling-induced-vasodilation-in-deep-arteries-and-veins
#9
JOURNAL ARTICLE
Seham Mustafa
Blood vessels in the cardiovascular system include arteries and veins, which are responsible for moving blood to and from tissues around the body. Our previous studies showed that cooling induces relaxation of arteries. The aim of this study is to investigate the effect of cooling on both arteries and veins pairs. Isometric tension was recorded in rat artery ring preparations (aorta, carotid, pulmonary arteries) and their vein pairs (vena cava, jugular, pulmonary veins) in organ baths during stepwise cooling from 37 to 4 °C...
July 5, 2023: Pflügers Archiv: European Journal of Physiology
https://read.qxmd.com/read/37314240/thermoregulation-of-tuvan-pastoralists-and-western-europeans-during-cold-exposure
#10
JOURNAL ARTICLE
Adam J Sellers, Dolaana Khovalyg, Wouter van Marken Lichtenbelt
OBJECTIVES: This study compared the metabolic and vascular responses, to whole-body and finger cold exposure, of a traditional population lifelong exposed to extreme cold winters with Western Europeans. METHODS: Thirteen cold acclimatized Tuvan pastoralist adults (45 ± 9 years; 24.1 ± 3.2 kg/m2 ) and 13 matched Western European controls (43 ± 15 years; 22.6 ± 1.4 kg/m2 ) completed a whole-body cold (10°C) air exposure test and a cold-induced vasodilation (CIVD) test, which involved the immersion of the middle finger into ice-water for 30 min...
June 14, 2023: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://read.qxmd.com/read/37005962/central-versus-peripheral-mechanisms-of-cold-induced-vasodilation-a-study-in-the-fingers-and-toes-of-people-with-paraplegia
#11
JOURNAL ARTICLE
Lydia Tsoutsoubi, Leonidas G Ioannou, Billie K Alba, Stephen S Cheung, Hein A Daanen, Igor B Mekjavic, Andreas D Flouris
PURPOSE: This study examined physiological and perceptual parameters related to cold-induced vasodilation (CIVD) in the fingers and toes of people with paraplegia and compared them with responses observed in able-bodied individuals. METHODS: Seven participants with paraplegia and seven able-bodied individuals participated in a randomized matched-controlled study involving left-hand and -foot immersion in cold water (8 ± 1 °C) for 40 min during exposure to cool (16 ± 1 °C), thermoneutral (23 ± 1 °C), and hot (34 ± 1 °C) ambient conditions...
April 2, 2023: European Journal of Applied Physiology
https://read.qxmd.com/read/36890596/cold-induced-vasodilation-response-in-a-japanese-cohort-insights-from-cold-water-immersion-and-genome-wide-association-studies
#12
JOURNAL ARTICLE
Yoshiki Yasukochi, Toshihiro Sera, Taiki Kohno, Yusuke Nakashima, Musashi Uesugi, Susumu Kudo
BACKGROUND: Cold-induced vasodilation (CIVD) occurs after blood vessels in the skin are constricted due to local cold exposure. Although many CIVD studies have been conducted, the underlying molecular mechanisms are yet to be clarified. Therefore, we explored genetic variants associated with CIVD response using the largest-scale dataset reported to date in a CIVD study involving wavelet analysis; thus, the findings improve our understanding of the molecular mechanisms that regulate the CIVD response...
March 8, 2023: Journal of Physiological Anthropology
https://read.qxmd.com/read/36854168/warning-tourniquets-risk-frostbite-in-cold-weather
#13
JOURNAL ARTICLE
John F Kragh, Daniel K O'Conor
We sought to better understand the frostbite risk during first-aid tourniquet use by reviewing information relevant to an association between tourniquet use and frostbite. However, there is little information concerning this subject, which may be of increasing importance because future conflicts against near-peer competitors may involve extreme cold weather environments. Historically, clinical frostbite cases with tourniquet use occurred in low frequency but in high severity when leading to limb amputation...
March 15, 2023: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://read.qxmd.com/read/36524441/stim1-and-orai1-form-a-novel-cold-transduction-mechanism-in-sensory-and-sympathetic-neurons
#14
JOURNAL ARTICLE
Tamara J Buijs, Bruno Vilar, Chun-Hsiang Tan, Peter A McNaughton
Moderate coolness is sensed by TRPM8 ion channels in peripheral sensory nerves, but the mechanism by which noxious cold is detected remains elusive. Here, we show that somatosensory and sympathetic neurons express two distinct mechanisms to detect noxious cold. In the first, inhibition by cold of a background outward current causes membrane depolarization that activates an inward current through voltage-dependent calcium (CaV ) channels. A second cold-activated mechanism is independent of membrane voltage, is inhibited by blockers of ORAI ion channels and by downregulation of STIM1, and is recapitulated in HEK293 cells by co-expression of ORAI1 and STIM1...
December 16, 2022: EMBO Journal
https://read.qxmd.com/read/36463544/palm-cooling-temperatures-on-thermal-physiological-perceptual-and-ergogenic-indices-from-rowing-workouts-in-a-thermoneutral-environment
#15
JOURNAL ARTICLE
S R Soltysiak, C E Colborn, E J Dichiara, N L Patel, A R Cocco, J F Caruso
Gel pack temperatures were compared for responses to thermal, physiological, perceptual, and ergogenic indices from healthy women (n = 12) and men (n = 8). They did three rowing workouts to identify an ideal temperature. In a randomised sequence, and as subjects wore gloves equipped with mesh pouches during workouts, gel packs at one of the three average temperatures (10.6, 12.6, or 14.9°C) were inserted into the pouches. Data were collected before, during and after multi-stage workouts...
December 4, 2022: Journal of Sports Sciences
https://read.qxmd.com/read/36459809/a-7-segment-numerical-hand-glove-mitten-model-for-predicting-thermophysiological-responses-of-the-human-hand-in-extremely-cold-conditions
#16
JOURNAL ARTICLE
Jie Yang, Faming Wang, Matthew David White, Rui Li, Guowen Song, Clara V Etter, Elizabeth A Gnatiuk, Andrew S Perrotta
A 7-segment and 29-node numerical hand-glove/mitten model was developed to simulate human hand physiological responses in various cold environments. To validate the model, simulated skin temperatures were compared to data from published literature and human trials conducted at -20, -40, and -60 °C. Results demonstrated that the model could reasonably predict cold-induced vasodilation (CIVD) responses at 0 °C temperature. At -20 °C, the model predicted skin temperature with the root mean square deviation (RMSD) falling within the measurement standard deviation (SD) for both the entire and local hand except for the posterior hand...
November 26, 2022: Computers in Biology and Medicine
https://read.qxmd.com/read/36305974/influence-of-acute-beetroot-juice-supplementation-on-cold-induced-vasodilation-and-fingertip-rewarming
#17
JOURNAL ARTICLE
Hitoshi Wakabayashi, Koji Sugiyama, Shinichi Suzuki, Yasuko Sakihama, Makoto Hashimoto, Martin J Barwood
PURPOSE: Vasoactive ingredients in beetroot (BR) such as nitrate are known to induce vasodilation in temperate conditions. This study investigated the effect of BR ingestion on cold induced vasodilation (CIVD) and rewarming of finger skin temperature (Tfing ) during and after hand immersion in cold water. METHODS: Twenty healthy males (mean ± SD; age 22.2 ± 0.7 years, height 172.6 ± 6.0 cm, body mass 61...
October 28, 2022: European Journal of Applied Physiology
https://read.qxmd.com/read/36207457/the-effect-of-short-term-refrigeration-on-platelet-responsiveness
#18
JOURNAL ARTICLE
Anna Kobsar, Karina Koehnlechner, Philipp Klingler, Marius Niklaus, Julia Zeller-Hahn, Angela Koessler, Katja Weber, Markus Boeck, Juergen Koessler
Storage of platelet concentrates (PC) at cold temperature (CT) is discussed as an alternative to the current standard of storage at room temperature (RT). Recently, we could show that cold-induced attenuation of inhibitory signaling is an important mechanism promoting platelet reactivity. For developing strategies in blood banking, it is required to elucidate the time-dependent onset of facilitated platelet activation. Thus, freshly prepared platelet-rich-plasma (PRP) was stored for 1 and 2 h at CT (2-6 °C) or at RT (20-24 °C), followed by subsequent comparative analysis...
October 7, 2022: Scientific Reports
https://read.qxmd.com/read/36125991/correction-cold-induced-vasodilation-during-single-digit-immersion-in-0%C3%A2-c-and-8%C3%A2-c-water-in-men-and-women
#19
Christopher James Tyler, Tom Reeve, Stephen S Cheung
[This corrects the article DOI: 10.1371/journal.pone.0122592.].
2022: PloS One
https://read.qxmd.com/read/36101432/cardiovascular-stress-and-characteristics-of-cold-induced-vasodilation-in-women-and-men-during-cold-water-immersion-a-randomized-control-study
#20
JOURNAL ARTICLE
Lydia Tsoutsoubi, Leonidas G Ioannou, Konstantinos Mantzios, Styliani Ziaka, Lars Nybo, Andreas D Flouris
BACKGROUND: Cold-induced vasodilation (CIVD) is a phenomenon that refers to a paradoxical increase in finger temperature that sometimes occurs during cold exposure. The aim of this study was to compare CIVD responses between women and men, during exposure to different environmental conditions. METHODS: Seven men and seven women participated in a matched controlled study consisting of a familiarization protocol followed by three experimental sessions (cool (10.8 °C WBGT), thermoneutral (17...
July 13, 2022: Biology
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