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https://www.readbyqxmd.com/read/28800067/a-randomized-crossover-trial-on-acute-stress-related-physiological-responses-to-mountain-hiking
#1
Martin Niedermeier, Carina Grafetstätter, Arnulf Hartl, Martin Kopp
Green exercise, defined as physical activity in natural environments, might have positive effects on stress-related physiological measures. Little is known about the acute effects of green exercise bouts lasting longer than 60 min. Therefore, the aim of the present study was to analyze the acute effects of a three-hour green exercise intervention (mountain hiking) on stress-related physiological responses. Using a randomized crossover design, 42 healthy participants were exposed to three different conditions in a field-based experiment: outdoor mountain hiking, indoor treadmill walking, and sedentary control condition (three hours each)...
August 11, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28783893/delayed-treatment-of-frostbite-with-hyperbaric-oxygen-a-report-of-two-cases
#2
Corine A Lansdorp, Gert R Roukema, Onno Boonstra, Jan Dokter
Frostbite is an injury caused by the freezing of tissue, causing varied levels of tissue damage and necrosis. Case reports have shown a positive effect of hyperbaric oxygen (HBO₂) in such injuries, in acute cases as well as delayed (up to 21 days) presentation with complications. In this case report we present the course of hyperbaric treatment of two patients (a brother and sister, age 58 and 62) who sustained frostbite injuries to both feet 28 days earlier while hiking in the Himalayas. They were initially treated in Nepal following local protocol; afterward their primary care in the Netherlands was managed by the Burn Centre at Maasstad Hospital in Rotterdam...
July 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
https://www.readbyqxmd.com/read/28778002/the-efficacy-of-combined-educational-and-site-management-actions-in-reducing-off-trail-hiking-in-an-urban-proximate-protected-area
#3
Karen S Hockett, Jeffrey L Marion, Yu-Fai Leung
Park and protected area managers are tasked with protecting natural environments, a particularly daunting challenge in heavily visited urban-proximate areas where flora and fauna are already stressed by external threats. In this study, an adaptive management approach was taken to reduce extensive off-trail hiking along a popular trail through an ecologically diverse and significant area in the Chesapeake and Ohio National Historical Park near Washington DC. Substantial amounts of off-trail hiking there had created an extensive 16...
August 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28777105/reducing-circumduction-and-hip-hiking-during-hemiparetic-walking-through-targeted-assistance-of-the-paretic-limb-using-a-soft-robotic-exosuit
#4
Louis N Awad, Jaehyun Bae, Pawel Kudzia, Andrew Long, Kathryn Hendron, Kenneth G Holt, Kathleen OʼDonnell, Terry D Ellis, Conor J Walsh
OBJECTIVE: The aim of the study was to evaluate the effects on common poststroke gait compensations of a soft wearable robot (exosuit) designed to assist the paretic limb during hemiparetic walking. DESIGN: A single-session study of eight individuals in the chronic phase of stroke recovery was conducted. Two testing conditions were compared: walking with the exosuit powered versus walking with the exosuit unpowered. Each condition was 8 minutes in duration. RESULTS: Compared with walking with the exosuit unpowered, walking with the exosuit powered resulted in reductions in hip hiking (27 [6%], P = 0...
August 2, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28729839/the-effect-of-low-ambient-relative-humidity-on-physical-performance-and-perceptual-responses-during-load-carriage
#5
Igor B Mekjavic, Ursa Ciuha, Mikael Grönkvist, Ola Eiken
Introduction: The study evaluated the effect of low ambient relative humidity on physical performance and perceptual responses during load carriage in a hot environment. Methods: Ten heat-unacclimatized male subjects participated in three 130-min trials, during which they walked on a treadmill, carrying a load of ~35 kg, at a speed of 3.2 km.h(-1), with an incident wind at the same velocity and ambient temperature at 45°C. Each trial commenced with a 10-min baseline at 20°C and 50% relative humidity (RH), the subjects transferred to a climatic chamber and commenced their simulated hike, comprising two 50-min walks separated by a 20-min rest period...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28708946/sports-participation-functional-outcome-and-complications-after-ankle-arthrodesis-midterm-follow-up
#6
Yvonne R A Kerkhoff, Noël L W Keijsers, Jan Willem K Louwerens
BACKGROUND: Ankle arthrodesis provides satisfactory functional outcome based on basic daily activities, but information regarding more demanding tasks is limited. Also, studies reporting longer term survival and complication rates are sparse and concern small study populations. This study reports functional outcome with more focus on demanding tasks and sports and reports the mid- to long-term union and complication rates in a large study population. METHODS: Between 2005 and 2010, an ankle arthrodesis was performed on 185 ankles...
July 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28649204/effects-of-dietary-nitrate-supplementation-on-physiological-responses-cognitive-function-and-exercise-performance-at-moderate-and-very-high-simulated-altitude
#7
Oliver M Shannon, Lauren Duckworth, Matthew J Barlow, Kevin Deighton, Jamie Matu, Emily L Williams, David Woods, Long Xie, Blossom C M Stephan, Mario Siervo, John P O'Hara
Purpose: Nitric oxide (NO) bioavailability is reduced during acute altitude exposure, contributing toward the decline in physiological and cognitive function in this environment. This study evaluated the effects of nitrate ([Formula: see text]) supplementation on NO bioavailability, physiological and cognitive function, and exercise performance at moderate and very-high simulated altitude. Methods:Ten males (mean (SD): [Formula: see text]: 60.9 (10.1) ml·kg(-1)·min(-1)) rested and performed exercise twice at moderate (~14...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28632066/differences-in-trunk-and-thigh-muscle-strength-endurance-and-thickness-between-elite-sailors-and-non-sailors
#8
Bernd Friesenbichler, Julia F Item-Glatthorn, Fabian Neunstöcklin, Nicola C Casartelli, Gaël Guilhem, Nicola A Maffiuletti
Dinghy sailors lean their upper body over the windward side of the boat ('hiking') to keep the boat's balance and maximise its speed. Sustaining the hiking position is essential for competitive performance and this study examined sport-specific differences of muscles relevant for hiking in elite sailors. Knee extensor muscle strength as well as trunk muscle strength, muscle endurance and muscle thickness were assessed in elite dinghy sailors (n = 15) and compared to matched, non-sailing controls (n = 15)...
March 1, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28602272/prevention-of-friction-blisters-in-outdoor-pursuits-a-systematic-review
#9
REVIEW
Robert M Worthing, Raechel L Percy, Jeremy D Joslin
The purpose of this systematic review was to determine if sock, antiperspirant, or barrier strategies were effective in prevention of friction blisters in wilderness and outdoor pursuits. A search of PubMed and EMBASE was conducted. Title, abstract, and full text articles were screened by 2 authors using predetermined inclusion and exclusion criteria to identify prospective controlled trials investigating prevention methods for friction blisters involving the foot. Only blisters associated with wilderness and outdoor pursuits (running, hiking, marching, etc...
June 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28597305/the-2-micron-plasmid-a-selfish-genetic-element-with-an-optimized-survival-strategy-within-saccharomyces-cerevisiae
#10
REVIEW
Syed Meraj Azhar Rizvi, Hemant Kumar Prajapati, Santanu Kumar Ghosh
Since its discovery in the early 70s, the 2 micron plasmid of Saccharomyces cerevisiae continues to intrigue researchers with its high protein-coding capacity and a selfish nature yet high stability, earning it the title of a 'miniaturized selfish genetic element'. It codes for four proteins (Rep1, Rep2, Raf1, and Flp) vital for its own survival and recruits several host factors (RSC2, Cohesin, Cse4, Kip1, Bik1, Bim1, and microtubules) for its faithful segregation during cell division. The plasmid maintains a high-copy number with the help of Flp-mediated recombination...
June 8, 2017: Current Genetics
https://www.readbyqxmd.com/read/28585006/studies-on-piston-bowl-geometries-using-single-blend-ratio-of-various-non-edible-oils
#11
Karthickeyan Viswanathan, Balamurugan Pasupathy
The depletion of fossil fuels and hike in crude oil prices were some of the main reasons to explore new alternatives from renewable source of energy. This work presents the impact of various bowl geometries on diesel engine with diesel and biodiesel samples. Three non-edible oils were selected, namely pumpkin seed oil, orange oil and neem oil. These oils were converted into respective biodiesel using transesterification process in the presence of catalyst and alcohol. After transesterification process, the oils were termed as pumpkin seed oil methyl ester (PSOME), orange oil methyl ester (OME) and neem oil methyl ester (NOME), respectively...
July 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28554819/interstitial-lung-fluid-balance-in-healthy-lowlanders-exposed-to-high-altitude
#12
Bryan J Taylor, Glenn M Stewart, Jan W Marck, Douglas T Summerfield, Amine N Issa, Bruce D Johnson
We aimed to assess lung fluid balance before and after gradual ascent to 5150m. Lung diffusion capacity for carbon monoxide (DLCO), alveolar-capillary membrane conductance (DmCO) and ultrasound lung comets (ULCs) were assessed in 12 healthy lowlanders at sea-level, and on Day 1, Day 5 and Day 9 after arrival at Mount Everest Base Camp (EBC). EBC was reached following an 8-day hike at progressively increasing altitudes starting at 2860m. DLCO was unchanged from sea-level to Day 1 at EBC, but increased on Day 5 (11±10%) and Day 9 (10±9%) vs...
September 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28542280/analysing-human-mobility-patterns-of-hiking-activities-through-complex-network-theory
#13
Isaac Lera, Toni Pérez, Carlos Guerrero, Víctor M Eguíluz, Carlos Juiz
The exploitation of high volume of geolocalized data from social sport tracking applications of outdoor activities can be useful for natural resource planning and to understand the human mobility patterns during leisure activities. This geolocalized data represents the selection of hike activities according to subjective and objective factors such as personal goals, personal abilities, trail conditions or weather conditions. In our approach, human mobility patterns are analysed from trajectories which are generated by hikers...
2017: PloS One
https://www.readbyqxmd.com/read/28537784/the-dangerousness-of-mountain-recreation-a-quantitative-overview-of-fatal-and-non-fatal-accidents-in-france
#14
Bastien Soulé, Brice Lefèvre, Eric Boutroy
In France, there is a growing enthusiasm for outdoor sports and recreation. In the meantime, the risk of both severe and frequent injury associated with active pursuits in mountain areas is acknowledged. This paper tackles accidents related to mountain sports, with a focus on three critical activities: hiking, mountaineering and ski touring. The aim consists of estimating the actual number of accidents (whether they entailed deaths or injuries) in the three above-mentioned activities. In order to align the information collected, then provide estimations based on the reasoned crossing of these secondary data, we consulted and summarised all the databases available on the French territory...
August 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28533252/national-trends-in-prescription-drug-expenditures-and-projections-for-2017
#15
Glen T Schumock, Edward C Li, Michelle D Wiest, Katie J Suda, JoAnn Stubbings, Linda M Matusiak, Robert J Hunkler, Lee C Vermeulen
PURPOSE: Historical trends and factors likely to influence future pharmaceutical expenditures are discussed, and projections are made for drug spending in 2017 in nonfederal hospitals, clinics, and overall (all sectors). METHODS: Drug expenditure data through calendar year 2016 were obtained from the QuintilesIMS National Sales Perspectives database and analyzed. Other factors that may influence drug spending in hospitals and clinics in 2017, including new drug approvals and patent expirations, were also reviewed...
May 22, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28530483/carotidynia-in-high-altitude-travelers
#16
Andrea Parra, Tamuru Okada, Peter H Lin
Background Carotidynia is characterized by focal pain and tenderness of the carotid artery without associated hemodynamic or structural abnormalities. Carotid artery pathology has also been known to occur in high altitude due to aberrant baroreceptor response in the carotid bulb. Case Presentation We herein report two cases of high altitude-related idiopathic carotidynia. The first patient was a geologist who performed oil reserve survey in the Alaska Mountain, while the second patient was hiking in a mountain trail in Peru...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28523366/the-effect-of-cigarette-price-increases-on-cigarette-consumption-tax-revenue-and-smoking-related-death-in-africa-from-1999-to-2013
#17
Li-Ming Ho, Christian Schafferer, Jie-Min Lee, Chun-Yuan Yeh, Chi-Jung Hsieh
OBJECTIVES: This study investigates the effects of price hikes on cigarette consumption, tobacco tax revenues, and reduction in smoking-caused mortality in 36 African countries. METHODS: Using panel data from the 1999-2013 Euromonitor International, the World Bank and the World Health Organization, we applied fixed-effects and random-effects regression models of panel data to estimate the elasticity of cigarette prices and simulate the effect of price fluctuations...
May 18, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28522459/drug-company-aspen-faces-probe-over-hiking-generic-prices
#18
Nigel Hawkes
No abstract text is available yet for this article.
May 18, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28520774/affective-responses-in-mountain-hiking-a-randomized-crossover-trial-focusing-on-differences-between-indoor-and-outdoor-activity
#19
Martin Niedermeier, Jürgen Einwanger, Arnulf Hartl, Martin Kopp
INTRODUCTION: Affective responses during physical activity (PA) are important for engagement in PA programs and for adherence to a physically active lifestyle. Little is known about the affective responses to PA bouts lasting longer than 45 minutes. Therefore, the aims of the present study were to analyse acute effects on affective responses of a three-hour outdoor PA intervention (mountain hiking) compared to a sedentary control situation and to an indoor treadmill condition. METHODS: Using a randomized crossover design, 42 healthy participants were randomly exposed to three different conditions: outdoor mountain hiking, indoor treadmill walking, and sedentary control situation (approximately three hours each)...
2017: PloS One
https://www.readbyqxmd.com/read/28515981/a-six-week-supervised-exercise-and-educational-intervention-after-total-hip-arthroplasty-a-case-series
#20
Federico Pozzi, Kathleen Madara, Joseph A Zeni
BACKGROUND AND PURPOSE: Most rehabilitation interventions after total hip arthroplasty (THA) are not designed to return patients to high-levels of physical activity and, thus, low levels of physical activity and residual weakness are common. The purpose of this case series was to describe the feasibility and preliminary efficacy of an exercise and education intervention for patients after THA who have already completed formal outpatient physical therapy. STUDY DESIGN: Case series...
April 2017: International Journal of Sports Physical Therapy
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