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https://www.readbyqxmd.com/read/28928974/the-influence-of-water-temperature-on-sockeye-salmon-heart-rate-recovery-following-simulated-fisheries-interactions
#1
Tanya S Prystay, Erika J Eliason, Michael J Lawrence, Melissa Dick, Jacob W Brownscombe, David A Patterson, Glenn T Crossin, Scott G Hinch, Steven J Cooke
Selective harvest policies have been implemented in North America to enhance the conservation of Pacific salmon (Oncorhynchus spp.) stocks, which has led to an increase in the capture and release of fish by all fishing sectors. Despite the immediate survival benefits, catch-and-release results in capture stress, particularly at high water temperatures, and this can result in delayed post-release mortality minutes to days later. The objective of this study was to evaluate how different water temperatures influenced heart rate disturbance and recovery of wild sockeye salmon (Oncorhynchus nerka) following fisheries interactions (i...
2017: Conservation Physiology
https://www.readbyqxmd.com/read/28926567/critical-developmental-windows-for-morphology-and-hematology-revealed-by-intermittent-and-continuous-hypoxic-incubation-in-embryos-of-quail-coturnix-coturnix
#2
Warren W Burggren, Nourhan A Elmonoufy
Hypoxia during embryonic growth in embryos is frequently a powerful determinant of development, but at least in avian embryos the effects appear to show considerable intra- and inter-specific variation. We hypothesized that some of this variation may arise from different protocols that may or may not result in exposure during the embryo's critical window for hypoxic effects. To test this hypothesis, quail embryos (Coturnix coturnix) in the intact egg were exposed to hypoxia (~15% O2) during "early" (Day 0 through Day 5, abbreviated as D0-D5), "middle" (D6-D10) or "late" (D11-D15) incubation or for their entire 16-18 day incubation ("continuous hypoxia") to determine critical windows for viability and growth...
2017: PloS One
https://www.readbyqxmd.com/read/28923751/effects-of-mindfulness-training-on-emotional-and-physiologic-recovery-from-induced-negative-affect
#3
Alexandra D Crosswell, Patricia I Moreno, Elizabeth B Raposa, Sarosh J Motivala, Annette L Stanton, Patricia A Ganz, Julienne E Bower
OBJECTIVE: Mindfulness training has been shown to improve psychological well-being and physical health. One proposed pathway for the positive effects of mindfulness training is through the development of new emotion regulation strategies, such as the ability to experience emotions by observing and accepting them without judgment. Theoretically, this should facilitate recovery from negative emotional states; however, this has rarely been examined empirically. The goal of the current study was to determine whether mindfulness training is associated with more efficient emotional and cardiovascular recovery from induced negative affect...
August 4, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28922935/stereotype-threat-trait-perseveration-and-vagal-activity-evidence-for-mechanisms-underpinning-health-disparities-in%C3%A2-black-americans
#4
DeWayne P Williams, Nicholas Joseph, LaBarron K Hill, John J Sollers, Michael W Vasey, Baldwin M Way, Julian Koenig, Julian F Thayer
OBJECTIVE: Black Americans (BAs) are at an elevated risk for morbidity and mortality in comparison to White Americans (WAs). Racial stressors are a common occurrence in American culture and is theorized to contribute to these disparities. When race-focused, stereotype threat (ST) is considered to be a factor that is detrimental to health in BAs; however few studies have directly investigated the impact of a ST manipulation on physiological function. Furthermore, it is proposed that racial stressors such as ST may have prolonged effects when more likely to perseverate (e...
September 19, 2017: Ethnicity & Health
https://www.readbyqxmd.com/read/28920822/a-retrospective-comparison-of-chemical-immobilization-with-thiafentanil-thiafentanil-azaperone-or-etorphine-acepromazine-in-captive-persian-fallow-deer-dama-dama-mesopotamica
#5
Roi Lapid, Roni King, Tali Bdolah-Abram, Yael Shilo-Benjamini
Records of 56 Persian fallow deer (Dama dama mesopotamica) immobilized for translocation were reviewed. Twenty-three were administered 0.05 ± 0.01 (mean ± SD) mg/kg thiafentanil (THIA), 20 were administered 0.045 ± 0.008 mg/kg thiafentanil combined with 0.19 ± 0.03 mg/kg azaperone (THIA-AZP), and 13 were administered 0.032 ± 0.04 mg/kg etorphine-acepromazine (ETOR-ACP) by intramuscular remote injection. Parameters recorded and compared between groups included induction and recovery times, heart rate, respiratory rate, rectal temperature, oxygen saturation, blood pressure, reflexes, quality of immobilization, and blood concentrations of lactate and glucose...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28917232/compressed-food-with-added-functional-oligopeptides-improves-performance-during-military-endurance-training
#6
Zhi-Qiang Zheng, Zhan-Hui Geng, Jia-Xi Liu, Shun-Tang Guo
BACKGROUND AND OBJECTIVES: Oligosaccharide or oligopeptide supplementation may have a significant impact on endurance performance. This study evaluated the effects of adding maltooligosaccharides (MO) or soy oligopeptides (SO) to compressed food (CF) on the physical response of soldiers to daily military training. METHODS AND STUDY DESIGN: Twelve soldiers were randomized to four diet groups: regular meals, CF, CFMO, and CFSO (crossover design). They participated in exercise tests including 90 minutes running at 55-65% VO2max and exhaustive running...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28913379/is-spinal-anesthesia-with-low-dose-lidocaine-better-than-sevoflorane-anesthesia-in-patients-undergoing-hip-fracture-surgery
#7
Mohammad Haghighi, Abbas Sedighinejad, Bahram Naderi Nabi, Mohsen Mardani-Kivi, Samaneh Ghazanfar Tehran, Seyed Abdollah Mirfazli, Ahmadreza Mirbolook, Nasim Ashoori Saheli
BACKGROUND: To evaluate general anesthesia with sevoflurane vs spinal anesthesia with low dose lidocaine 5% on hemodynamics changes in patients undergoing hip fracture surgery. METHODS: In this randomized double blind trial 100 patients (50 patients in each group) older than 60 years under hip surgery were randomized in general anesthesia with sevoflurane and spinal anesthesia with lidocaine 5%. Hemodynamic changes including mean arterial pressure (MAP) and heart rate, blood loss, pain severity, nausea and vomiting and opioids consumption were compared in two groups...
July 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28912726/cardiovascular-and-muscular-consequences-of-work-matched-interval-type-of-concentric-and-eccentric-pedaling-exercise-on-a-soft-robot
#8
Martin Flück, Rebekka Bosshard, Max Lungarella
Eccentric types of endurance exercise are an acknowledged alternative to conventional concentric types of exercise rehabilitation for the cardiac patient, because they reduce cardiorespiratory strain due to a lower metabolic cost of producing an equivalent mechanical output. The former contention has not been tested in a power- and work-matched situation of interval-type exercise under identical conditions because concentric and eccentric types of exercise pose specific demands on the exercise machinery, which are not fulfilled in current practice...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28912649/does-live-high-train-low-and-high-hypoxic-training-alter-running-mechanics-in-elite-team-sport-players
#9
Olivier Girard, Grégoire P Millet, Jean-Benoit Morin, Franck Brocherie
This study aimed to investigate if "Live High-Train Low (and High)" hypoxic training alters constant-velocity running mechanics. While residing under normobaric hypoxia (≥14 h·d(-1); FiO2 14.5-14.2%) for 14 days, twenty field hockey players performed, in addition to their usual training in normoxia, six sessions (4 × 5 × 5-s maximal sprints; 25 s passive recovery; 5 min rest) under either normobaric hypoxia (FiO2 ~14.5%, n = 9) or normoxia (FiO2 20.9%, n = 11). Before and immediately after the intervention, their running pattern was assessed at 10 and 15 km·h(-1) as well as during six 30-s runs at ~20 km·h(-1) with 30-s passive recovery on an instrumented motorised treadmill...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28912647/accelerometery-and-heart-rate-responses-of-professional-fast-medium-bowlers-in-one-day-and-multi-day-cricket
#10
James A Johnstone, Gerwyn Hughes, Andrew C Mitchell, Paul A Ford, Tim Watson, Rob Duffield, Dan Gordon, Justin D Roberts, Andrew T Garrett
The physical demands of fast-medium bowling are increasingly being recognised, yet comparative exploration of the differing demands between competitive formats (i.e. one-day [OD] versus multi-day [MD] matches) remain minimal. The aim of this study was to describe in-match physiological profiles of professional fast-medium bowlers from England across different versions of competitive matches using a multivariable wearable monitoring device. Seven professional cricket fast-medium bowlers wore the Bioharness(TM) monitoring device during matches, over three seasons (>80 hours in-match)...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28910959/-ischemia-reperfusion-injury-study-in-isolated-mouse-hearts-using-a-pressure-volume-curve
#11
J B Jiang, Z W Huamei, Gourdie Robert G, Zhiwei Zhang
Objective: To establish and assess the feasibility and sensitivity of left ventricular elasticity, compliance and stiffness for study of ischemia/reperfusion injury in an isolated mouse heart model utilizing the pressure-volume curve framework. Methods: An isolated, balloon-in-ventricle, isovolumically contracting, crystalloid-perfused Langendorff heart preparation was set up from 15 male C57/6BL mice aged 12-14 weeks. End-systolic pressure-volume relationship (ESPVR) and end-diastolic pressure-volume relationship (EDPVR) were obtained by measuring left ventricular (LV) systolic pressure (LVSP) and diastolic pressure under different balloon volumes...
September 12, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28906273/utilization-and-outcomes-of-temporary-mechanical-circulatory-support-for-graft-dysfunction-after-heart-transplantation
#12
Kevin Phan, Jessica G Y Luc, Joshua Xu, Simon Maltais, John M Stulak, Tristan D Yan, Vakhtang Tchantchaleishvili
Graft dysfunction is the main cause of early mortality after heart transplantation. In cases of severe graft dysfunction, temporary mechanical circulatory support (TMCS) may be necessary. The aim of this systematic review was to examine the utilization and outcomes of TMCS in patients with graft dysfunction after heart transplantation. Electronic search was performed to identify all studies in the English literature assessing the use of TMCS for graft dysfunction. All identified articles were systematically assessed for inclusion and exclusion criteria...
September 12, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28904261/chemical-immobilization-of-free-ranging-and-captive-sunda-clouded-leopards-neofelis-diardi-with-two-anesthetic-protocols-medetomidine-ketamine-and-tiletamine-zolazepam
#13
Fernando Nájera, Andrew J Hearn, Joanna Ross, Diana A Ramírez Saldivar, Meaghan N Evans, Sergio Guerrero-Sánchez, Senthilvel K S S Nathan, Ignacio de Gaspar Simón, David W Macdonald, Benoit Goossens, Luis Revuelta Rueda
There is currently no available information regarding the veterinary management of Sunda clouded leopards (Neofelis diardi), either in captivity or in the wild. In this study, 12 Sunda clouded leopards were anesthetized between January 2008 and February 2014 for medical exams, and/or GPS-collaring. Seven wild-caught individuals were kept in captivity and 5 free-ranging animals were captured by cage traps. Two anesthesia combinations were used: medetomidine-ketamine (M-K) or tiletamine-zolazepam (T-Z). Atipamezole (0...
September 14, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28890890/the-impact-of-resonance-frequency-breathing-on-measures-of-heart-rate-variability-blood-pressure-and-mood
#14
Patrick R Steffen, Tara Austin, Andrea DeBarros, Tracy Brown
Heart rate variability biofeedback (HRVB) significantly improves heart rate variability (HRV). Breathing at resonance frequency (RF, approximately 6 breaths/min) constitutes a key part of HRVB training and is hypothesized to be a pathway through which biofeedback improves HRV. No studies to date, however, have experimentally examined whether RF breathing impacts measures of HRV. The present study addressed this question by comparing three groups: the RF group breathed at their determined RF for 15 min; the RF + 1 group breathed at 1 breath/min higher than their determined RF for 15 min; and the third group sat quietly for 15 min...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28888482/exercise-training-and-cardiac-autonomic-function-in-type-2-diabetes-mellitus-a-systematic-review
#15
REVIEW
Pooja Bhati, Shweta Shenoy, M Ejaz Hussain
Cardiac autonomic neuropathy (CAN) is a common complication of type 2 diabetes mellitus (T2DM). It has been found to independently predict all cause and cardiovascular disease (CVD) mortality. It remains unclear whether exercise training could improve autonomic control in T2DM patients. The purpose of this study was to systematically review the effects of exercise training on cardiac autonomic function in T2DM patients. Electronic databases (MEDLINE, CENTRAL, PEDro, Scopus and Web of science) were systematically searched to retrieve relevant evidence...
September 6, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28887003/effects-of-acupuncture-at-the-st-36-point-on-muscle-sympathetic-nerve-activity-and-blood-pressure-in-normal-adults
#16
Kenichi Kimura, Kazuya Ishida, Noriyo Takahashi, Yasushi Toge, Fumihiro Tajima
The aim of the present study was to determine the effects of acupuncture on post-ganglionic muscle sympathetic nerve activity (MSNA) in humans. MSNA was measured in 8 healthy adult males by microneurography evaluation of the left peroneal nerve. Blood pressure (BP) and heart rate (HR) were simultaneously recorded. MSNA was evaluated as the burst rate, with total MSNA, BP and HR normalized to their respective baseline values. After 10min of rest in the supine position, acupuncture was applied to the right ST-36 point in the tibialis anterior muscle for 15min, with recovery then monitored over a 20-min period...
September 1, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28885961/effectiveness-of-ice-sheet-cooling-following-exertional-hyperthermia
#17
Cory L Butts, Debora L Spisla, J D Adams, Cody R Smith, Kathleen M Paulsen, Aaron R Caldwell, Matthew S Ganio, Brendon P McDermott
BACKGROUND: The procedure of wrapping a heat casualty in ice-water soaked bed sheets to reduce core temperature has received little investigation, despite the practice and recommendation for its use in some military settings. Thus, the purpose of this study was to investigate the cooling efficacy of ice-sheet cooling (ISC) following exertional hyperthermia. METHODS: 13 (11 males, 2 females) participants (age = 23 ± 3 years, height = 176.5 ± 10.3 cm, mass = 78...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28885093/heart-rate-recovery-time-in-metabolically-healthy-and-metabolically-unhealthy-obese-children
#18
Ljiljana Bjelakovic, Vladimir Vukovic, Marko Jovic, Sanja Bankovic, Tomislav Kostic, Dragan Radovanovic, Sasa Pantelic, Mladen Zivkovic, Sanja Stojanovic, Bojko Bjelakovic
BACKGROUND: Autonomic dysfunction is an emerging non-traditional cardiovascular risk factor that correlates with obesity, components of metabolic syndrome, as well as cardiorespiratory fitness. As a simple and validated index of autonomic balance, heart rate recovery (HRR) has been reported as a useful biomarker for predicting cardiovascular morbidity and mortality. OBJECTIVES: The aim of this study was to compare HRR in metabolically healthy vs. metabolically unhealthy obese children...
September 8, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28882371/comparison-of-subcutaneous-dexmedetomidine-midazolam-versus-alfaxalone-midazolam-sedation-in-leopard-geckos-eublepharis-macularius
#19
Grayson A Doss, Dustin M Fink, Kurt K Sladky, Christoph Mans
OBJECTIVE: To compare dexmedetomidine-midazolam with alfaxalone-midazolam for sedation in leopard geckos (Eublepharis macularius). STUDY DESIGN: Prospective, randomized, blinded, complete crossover study. ANIMALS: Nine healthy adult leopard geckos. METHODS: Geckos were administered a combination of dexmedetomidine (0.1 mg kg(-1)) and midazolam (1.0 mg kg(-1); treatment D-M) or alfaxalone (15 mg kg(-1)) and midazolam (1...
April 24, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28880686/preliminary-evidence-of-attenuated-blood-pressure-reactivity-to-acute-stress-in-adults-following-a-recent-marital-separation
#20
Austin M Grinberg, Karey L O'Hara, Dave A Sbarra
OBJECTIVE: This study explores cardiovascular reactivity during an acute-stress task in a sample of recently separated adults. DESIGN: In a cross-sectional design, we examined the association between adults' subjective separation-related distress and changes in heart rate and blood pressure across the acute-stress laboratory paradigm in a sample of 133 (n = 49 men) recently separated adults. MAIN OUTCOME MEASURES: Heart rate (HR) and Blood pressure (BP) were recorded across a resting baseline period, a math stressor task, and a recovery period...
September 7, 2017: Psychology & Health
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