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https://www.readbyqxmd.com/read/28644933/survey-of-hand-and-upper-extremity-injuries-among-rock-climbers
#1
Clayton E Nelson, Ghazi M Rayan, Dustin I Judd, Kai Ding, Julie A Stoner
BACKGROUND: Rock climbing first evolved as a sport in the late 18th century. With its growing popularity, the number of rock climbing-related injuries has potential to increase, spurring a rise in the number of articles associated with it. Despite the available literature, there remains a paucity of information about upper extremity injuries sustained by rock climbers, and no studies to date have focused on gender-specific injuries. METHODS: A 24-question online survey was distributed to rock climbers about upper extremity injuries sustained during rock climbing...
July 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28638879/traditional-knowledge-of-medicinal-plants-in-tribes-of-tripura-in-northeast-india
#2
Maria Debbarma, Nazir A Pala, Munesh Kumar, Rainer W Bussmann
BACKGROUND: The present study was carried out in Mandwi area and its outskirts of Tripura district of tribal areas Autonomous district council to document the available ethno-medicinal plants and their traditional application among Mandwi tribes. METHODOLOGY: Field explorations were carried out during the months of March-June 2013. The ethno-medicinal survey was conducted particularly with Tripuri tribe in Mandai area, with the help of local medicine men, locally known as bhoidho (Tripuri)...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28633788/fluoroscopic-and-gait-analyses-for-the-functional-performance-of%C3%A2-a%C3%A2-custom-made-total-talonavicular-replacement
#3
Claudio Belvedere, Matteo Cadossi, Antonio Mazzotti, Sandro Giannini, Alberto Leardini
The present study evaluated the restoration of joint function in a special clinical case: a professional rock climber who underwent an original total talonavicular replacement with a custom-made prosthesis after a complex articular fracture. Full body gait analysis and 3-dimensional joint kinematics using single-plane fluoroscopy were performed on the same day at the 30-month follow-up examination. Gait analysis was performed using stereophotogrammetric, dynamometric, electromyographic, and baropodometric systems...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28631623/morphological-self-stabilization-of-locomotion-gaits-illustration-on-a-few-examples-from-bio-inspired-locomotion
#4
Christine Chevallereau, Frédéric Boyer, Mathieu Porez, Johan Mauny, Yannick Aoustin
To a large extent, robotics locomotion can be viewed as cyclic motions, named gaits. Due to the high complexity of the locomotion dynamics, to find the control laws that ensure an expected gait and its stability with respect to external perturbations, is a challenging issue for feedback control. To address this issue, a promising way is to take inspiration from animals that intensively exploit the interactions of the passive degrees of freedom of their body with their physical surroundings, to outsource the high-level exteroceptive feedback control to low-level proprioceptive ones...
June 20, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28626855/a-scaling-method-to-individualise-muscle-force-capacities-in-musculoskeletal-models-of-the-hand-and-wrist-using-isometric-strength-measurements
#5
Benjamin Goislard de Monsabert, G Rao, A Gay, E Berton, L Vigouroux
Because the force-generating capacities of muscles are currently estimated using anatomical data obtained from cadaver specimens, hand musculoskeletal models provide only a limited representation of the specific features of individual subjects. A scaling method is proposed to individualise muscle capacities using dynamometric measurements and electromyography. For each subject, a strength profile was first defined by measuring net moments during eight maximum isometric contractions about the wrist and metacarpophalangeal joints...
June 19, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28604118/practical-tips-for-working-as-an-expedition-doctor-on-high-altitude-expeditions
#6
Anne Brants, Tracee Metcalfe
Brants, Anne, and Tracee Metcalfe. Practical tips for working as an expedition doctor on high-altitude expeditions. High Alt Med Biol 00:000-000, 2017.-With the explosion of adventure travel over the past decade, there has been a concurrent increase in mountaineering expeditions to extreme elevations, including many of the 8000-m peaks. This trend has created an increased demand for qualified expedition doctors to provide specialized medical advice and care to climbers and expedition staff. This review is intended to help physicians prepare for work on such expeditions...
June 12, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28532279/the-effect-of-cold-ambient-temperatures-on-climbing-specific-finger-flexor-performance
#7
Kevin Phillips, Byungjoo Noh, Matthew Gage, Tejin Yoon
Different ambient temperatures are known to affect muscular performance based on the type of contraction. The effect of cold (10°C) and thermoneutral (TN) (24°C) ambient temperatures on finger flexor performance was examined in 12 rock climbers. After 30 min of seated rest in the designated temperature condition, participants completed maximal voluntary contractions (MVC) on a climbing-specific finger flexor assessment device equipped with a crimp grip hold. Participants then completed an intermittent fatiguing task until failure...
August 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28514129/-hand-injuries-in-rock-climbers
#8
REVIEW
Hagay Orbach, Guy Rubin, Alejandro Wolovelsky, Micha Rinott, Uriel Giwnewer, Nimrod Rozen
Rock climbing, whether practiced in nature on cliffs and boulders or indoors on walls made of resin and wood, has gained tremendous popularity in recent decades. More people are exposed to injuries associated with the unique biomechanical forces of rock climbing. A series of repetitive high torque movements of the upper limbs are needed to ascend a wall or rockface. These movements subject the hand and wrist to large forces, potentially resulting in ligament and tendon sprains or rupture and even bone fracture...
July 2016: Harefuah
https://www.readbyqxmd.com/read/28492374/a-miniaturized-wall-climbing-segment-robot-inspired-by-caterpillar-locomotion
#9
Il Hwan Han, Hoon Yi, Chang-Woo Song, Hoon Eui Jeong, Seung-Yop Lee
Caterpillars are very successful soft-bodied climbers that navigate in complex environments. This paper develops a multi-segmented robot climbing on vertical surfaces using dry adhesive pads, inspired by caterpillar locomotion. The miniaturized robot consists of four segments, and each segment uses a solenoid actuator with a permanent magnet plunger. The head and body segments adapt a novel mechanism and Scott-Russell linkages to generate a bi-directional plane motion using one solenoid actuator, resulting to reliable attaching and peeling motions of gecko pads...
June 15, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/28481626/retinal-hemorrhage-in-a-high-altitude-aid-post-volunteer-doctor-a-case-report
#10
Sanjeeb Sudarshan Bhandari, Pranawa Koirala, Nirajan Regmi, Sushil Pant
Bhandari, Sanjeeb Sudarshan, Pranawa Koirala, Nirajan Regmi, and Sushil Pant. Retinal hemorrhage in a high-altitude aid post volunteer doctor: a case report. High Alt Med Biol 00:000-000, 2017.-High-altitude retinal hemorrhages (HARHs) are seen at altitudes more than 3000 m, are usually multiple, flame shaped, and adjacent to blood vessels. Development near the macula causes blurring of vision, otherwise, they are symptomless and self-limiting. They often develop during the first few days after ascent to high altitude and subjects often suffer from acute mountain sickness (AMS) or high-altitude cerebral edema (HACE)...
May 8, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28473611/operation-everest-ii-and-the-1978-habeler-messner-ascent-of-everest-without-bottled-o2-what-might-they-have-in-common
#11
Peter D Wagner
In 1978, Peter Habeler and Reinhold Messner climbed Everest without supplemental O2 Subsequently, Oelz and coworkers (9) assessed their cardiopulmonary function, finding no advantageous physiological attributes to explain their success, and leading West (18) to suggest that grit and determination were more important. In 1985, Charlie Houston, John Sutton and Al Cymerman hosted a scientific project assessing a simulated ascent of Everest (OE II) at the USARIEM. Included were measurements of O2 transport. In particular, mixed venous PO2 was measured at/near maximal exercise, for calculating pulmonary O2 diffusing capacity...
May 4, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28458987/migration-of-aluminum-from-food-contact-materials-to-food-a-health-risk-for-consumers-part-iii-of-iii-migration-of-aluminum-to-food-from-camping-dishes-and-utensils-made-of-aluminum
#12
Thorsten Stahl, Sandy Falk, Alice Rohrbeck, Sebastian Georgii, Christin Herzog, Alexander Wiegand, Svenja Hotz, Bruce Boschek, Holger Zorn, Hubertus Brunn
BACKGROUND: When cooking on a barbecue grill, consumers often use aluminum grill pans. For one, the pan catches the fats and oils that would drip into the embers causing the formation of potentially noxious smoke, and the pan also protects the food from being burned by direct heat from the coals. In addition, new aluminum products for use in ovens and grills are becoming increasingly popular. Due to their light weight and excellent heat transfer camping, utensils made of aluminum are, for example, often used by fishermen and mountain climbers...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28444520/elevational-plant-species-richness-patterns-and-their-drivers-across-non-endemics-endemics-and-growth-forms-in-the-eastern-himalaya
#13
Kumar Manish, Maharaj K Pandit, Yasmeen Telwala, Dinesh C Nautiyal, Lian Pin Koh, Sudha Tiwari
Despite decades of research, ecologists continue to debate how spatial patterns of species richness arise across elevational gradients on the Earth. The equivocal results of these studies could emanate from variations in study design, sampling effort and data analysis. In this study, we demonstrate that the richness patterns of 2,781 (2,197 non-endemic and 584 endemic) angiosperm species along an elevational gradient of 300-5,300 m in the Eastern Himalaya are hump-shaped, spatial scale of extent (the proportion of elevational gradient studied) dependent and growth form specific...
April 25, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/28441425/role-of-route-previewing-strategies-on-climbing-fluency-and-exploratory-movements
#14
Ludovic Seifert, Romain Cordier, Dominic Orth, Yoan Courtine, James L Croft
This study examined the role of route previewing strategies on climbing fluency and on exploratory movements of the limbs, in order to understand whether previewing helps people to perceive and to realize affordances. Eight inexperienced and ten experienced climbers previewed a 10 m high route of 5b difficulty on French scale, then climbed it with a top-rope as fluently as possible. Gaze behavior was collected from an eye tracking system during the preview and allowed us to determine the number of times they scanned the route, and which of four route previewing strategies (fragmentary, ascending, zigzagging, and sequence-of-blocks) they used...
2017: PloS One
https://www.readbyqxmd.com/read/28397765/estimation-of-antenna-pose-in-the-earth-frame-using-camera-and-imu-data-from-mobile-phones
#15
Zhen Wang, Bingwen Jin, Weidong Geng
The poses of base station antennas play an important role in cellular network optimization. Existing methods of pose estimation are based on physical measurements performed either by tower climbers or using additional sensors attached to antennas. In this paper, we present a novel non-contact method of antenna pose measurement based on multi-view images of the antenna and inertial measurement unit (IMU) data captured by a mobile phone. Given a known 3D model of the antenna, we first estimate the antenna pose relative to the phone camera from the multi-view images and then employ the corresponding IMU data to transform the pose from the camera coordinate frame into the Earth coordinate frame...
April 8, 2017: Sensors
https://www.readbyqxmd.com/read/28395094/mountain-medical-kits-epidemiology-based-recommendations-and-analysis-of-medical-supplies-carried-by-mountain-climbers-in-colorado
#16
William E Brandenburg, Brian W Locke
Objective: : To provide medical kit recommendations for short mountain wilderness recreation trips (hiking, trekking, backpacking, mountaineering etc.) based on the epidemiology of injury and illness sustained and best treatment guidelines. Additionally, to compare these recommendations to the medical kit contents of mountain climbers in Colorado. Methods: : A primary literature review concerning the epidemiology of injury and illness in mountain wilderness settings was performed...
March 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28387575/nutritional-considerations-for-bouldering
#17
Edward J Smith, Ryan Storey, Mayur K Ranchordas
Bouldering competitions are held up to International level and governed by the International Federation of Sport Climbing. Bouldering has been selected to feature at the 2020 Olympic Games in Tokyo, however, physiological qualities and nutritional requirements to optimise performance remain inadequately defined due to large gaps in the literature. The primary goals of training include optimising the capacity of the anaerobic energy systems and developing sport-specific strength, with emphasis on the isometric function of the forearm flexors responsible for grip...
April 7, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28328714/somatic-profile-of-the-elite-boulderers-in-poland
#18
Mariusz Ozimek, Marcin Krawczyk, Emilian Zadarko, Zbigniew Barabasz, Tadeusz Ambroży, Arkadiusz Stanula, Dawid K Mucha, Adam Jurczak, Dariusz Mucha
Ozimek, M, Krawczyk, M, Zadarko, E, Barabasz, Z, Ambroży, T, Stanula, A, Mucha, DK, Jurczak, A, and Mucha, D. Somatic profile of the elite boulderers in Poland. J Strength Cond Res 31(4): 963-970, 2017-The study was designed to determine the values of selected somatic characteristics, body proportions, and the somatotype of elite bouldering climbers in Poland and to establish the relationships between the values of the somatic characteristics and climber's performance in bouldering. The study was conducted in a group of elite sport climbers (n = 10) who were ranked by the Polish Mountaineering Association in 2011, 2012, and 2013...
April 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28301444/hemodynamic-and-cardiorespiratory-predictors-of-sport-rock-climbing-performance
#19
Simon Fryer, David Giles, Inmaculada Garrido Palomino, Alejandro de la O Puerta, Vanesa España Romero
Rock climbing performance has been suggested to involve a notable contribution from the aerobic metabolism. Previously it has been shown that forearm oxygenation kinetics can be used to distinguish ability groups and predict red-point sport climbing performance. Currently it is not known if forearm oxygenation kinetics, or a sport specific assessment of cardiorespiratory fitness best predicts sport rock climbing performance. The aim of the study was to determine whether forearm oxidative capacity index, maximal de-oxygenation (Δ score) during a treadwall V[Combining Dot Above]O[SUBSCRIPT TWO]peak test, treadwall V[Combining Dot Above]O[SUBSCRIPT TWO]peak, or running V[Combining Dot Above]O[SUBSCRIPT TWO]max best predicts self-reported sport climbing performance...
March 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28207806/trace-element-accumulation-in-lotic-dragonfly-nymphs-genus-matters
#20
Dean E Fletcher, Angela H Lindell, Garrett K Stillings, Susan A Blas, J Vaun McArthur
Constituents of coal combustion waste (CCW) expose aquatic organisms to complex mixtures of potentially toxic metals and metalloids. Multi-element trace element analyses were used to distinguish patterns of accumulation among 8 genera of dragonfly nymphs collected from two sites on a CCW contaminated coastal plain stream. Dragonfly nymphs are exceptional for comparing trace element accumulation in syntopic macroinvertebrates that are all predators within the same order (Odonata) and suborder (Anisoptera), but differ vastly in habitat use and body form...
2017: PloS One
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