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https://www.readbyqxmd.com/read/28216727/high-altitude-dermatology
#1
Lt Col G K Singh
Approximately, 140 million people worldwide live permanently at high altitudes (HAs) and approximately another 40 million people travel to HA area (HAA) every year for reasons of occupation, sports or recreation. In India, whole of Ladakh region, part of Northwest Kashmir, Northern part of Sikkim and Tenga valley of Arunachal are considered inhabited areas of HAA. The low quantity of oxygen, high exposure of ultraviolet (UV) light, very low humidity, extreme subzero temperature in winter, high wind velocity, make this region difficult for lowlanders as well as for tourists...
January 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28203603/physical-activity-level-and-sport-participation-in-relation-to-musculoskeletal-pain-in-a-population-based-study-of-adolescents-the-young-hunt-study
#2
Maren Hjelle Guddal, Synne Øien Stensland, Milada Cvancarova Småstuen, Marianne Bakke Johnsen, John-Anker Zwart, Kjersti Storheim
BACKGROUND: Prevalence of musculoskeletal pain among adolescents is high, and pain in adolescence increases the risk of chronic pain in adulthood. Studies have shown conflicting evidence regarding associations between physical activity and musculoskeletal pain, and few have evaluated the potential impact of sport participation on musculoskeletal pain in adolescent population samples. PURPOSE: To examine the associations between physical activity level, sport participation, and musculoskeletal pain in the neck and shoulders, low back, and lower extremities in a population-based sample of adolescents...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203600/do-muscle-strength-deficits-of-the-uninvolved-hip-and-knee-exist-in-young-athletes-before-anterior-cruciate-ligament-reconstruction
#3
Joseph Hannon, Sharon Wang-Price, Shiho Goto, J Craig Garrison, James M Bothwell
BACKGROUND: Muscle strength of the involved limb is known to be decreased after injury. Comparison with the uninvolved limb has become standard of practice to measure progress and for calculation of limb symmetry indices (LSIs) to determine readiness to return to sport. However, some literature suggests strength changes in the uninvolved limb also are present after lower extremity injury. PURPOSE: To examine the uninvolved limb strength in a population of adolescent athletes after an anterior cruciate ligament (ACL) injury and compare strength values with those of the dominant limb in a healthy control group...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203599/surgical-management-of-rectus-femoris-avulsion-among-professional-soccer-players
#4
Bertrand Sonnery-Cottet, Nuno Camelo Barbosa, Sanesh Tuteja, Roland Gardon, Matt Daggett, Damien Monnot, Charles Kajetanek, Mathieu Thaunat
BACKGROUND: Rectus femoris injuries are common among athletes, especially in kicking sports such as soccer; however, proximal rectus femoris avulsions in athletes are a relatively rare entity. PURPOSE/HYPOTHESIS: The purpose of this study was to describe and report the results of an original technique of surgical excision of the proximal tendon remnant followed by a muscular suture repair. Our hypothesis was that this technique limits the risk of recurrence in high-level athletes and allows for rapid recovery without loss of quadriceps strength...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28197144/detection-and-enumeration-of-spore-forming-bacteria-in-powdered-dairy-products
#5
REVIEW
Aoife J McHugh, Conor Feehily, Colin Hill, Paul D Cotter
With the abolition of milk quotas in the European Union in 2015, several member states including Ireland, Luxembourg, and Belgium have seen year on year bi-monthly milk deliveries to dairies increase by up to 35%. Milk production has also increased outside of Europe in the past number of years. Unsurprisingly, there has been a corresponding increased focus on the production of dried milk products for improved shelf life. These powders are used in a wide variety of products, including confectionery, infant formula, sports dietary supplements and supplements for health recovery...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28186834/elevated-knee-joint-kinetics-and-reduced-ankle-kinetics-are-present-during-jogging-and-hopping-after-achilles-tendon-ruptures
#6
Richard W Willy, Annelie Brorsson, Hayley C Powell, John D Willson, Roy Tranberg, Karin Grävare Silbernagel
BACKGROUND: Deficits in plantarflexor function are common after an Achilles tendon rupture. These deficits may result in an altered distribution of joint loads during lower extremity tasks. HYPOTHESIS: We hypothesized that, regardless of treatment, the Achilles tendon-ruptured limb would exhibit deficits in ankle kinematics and joint power while exhibiting elevated knee joint power and patellofemoral joint loads during walking, jogging, and hopping. We further hypothesized that this loading pattern would be most evident during jogging and hopping...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28181776/cardiovascular-adjustments-to-heat-stress-during-prolonged-exercise
#7
Luna Rizzo, Martin W Thompson
Prolonged effort in hot environments is increasing popular in extreme sports. The number of long distance athletes taking part in races in extremely warm condition, as in deserts, is larger than in the past and also the race distances are increased thus. The demanding for the heart function are higher than those challenged in the past only by few athletes and in easier conditions. This puts news challenges on the professional involved in these activities and there is a need to better understand how the cardiocirculatory system responses in these extreme environmental conditions...
February 8, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28180114/paddle-boarding-fun-new-sport-or-an-accident-waiting-to-happen
#8
Shree-Eesh Waydia, Timothy Woodacre
BACKGROUND: Stand-up paddle-boarding is an increasingly popular water sport; however no published data to our knowledge exists on the nature and type of injuries sustained in this sport. OBJECTIVES: This study aims to describe the frequency, pattern, and mechanism of paddle-boarding injuries. MATERIALS AND METHODS: Descriptive data of paddle-boarding injuries were collected using an interactive website-based, multiple-choice survey. Data were collected from May 2012 over a 6-month period...
July 2016: Trauma Monthly
https://www.readbyqxmd.com/read/28173788/real-time-optimized-biofeedback-utilizing-sport-techniques-robust-a-study-protocol-for-a-randomized-controlled-trial
#9
Jeffrey B Taylor, Anh-Dung Nguyen, Mark V Paterno, Bin Huang, Kevin R Ford
BACKGROUND: Anterior cruciate ligament (ACL) injuries in female athletes lead to a variety of short- and long-term physical, financial, and psychosocial ramifications. While dedicated injury prevention training programs have shown promise, ACL injury rates remain high as implementation has not become widespread. Conventional prevention programs use a combination of resistance, plyometric, balance and agility training to improve high-risk biomechanics and reduce the risk of injury. While many of these programs focus on reducing knee abduction load and posture during dynamic activity, targeting hip extensor strength and utilization may be more efficacious, as it is theorized to be an underlying mechanism of injury in adolescent female athletes...
February 7, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28163571/prevalence-patterns-and-correlates-of-equestrian-injuries-in-malaysia-a-cross-sectional-study
#10
Nizar A Majeedkutty, Nor A B Khairulanuar
BACKGROUND: Equestrian sport carries with it an implicit risk of injury. Despite the frequency of injuries in equestrian sports, there is no published study on injuries of equestrian athletes in Malaysia. OBJECTIVE: The objective of this study was to determine the prevalence of injuries and its correlates among horseback riders. SUBJECTS AND METHODS: A web-based standardized questionnaire was used to collect data for this cross-sectional survey...
January 2017: Journal of Family & Community Medicine
https://www.readbyqxmd.com/read/28160738/on-the-mechanical-behaviour-of-peek-and-ha-cranial-implants-under-impact-loading
#11
D Garcia-Gonzalez, J Jayamohan, S N Sotiropoulos, S-H Yoon, J Cook, C R Siviour, A Arias, A Jérusalem
The human head can be subjected to numerous impact loadings such as those produced by a fall or during sport activities. These accidents can result in skull fracture and in some complex cases, part of the skull may need to be replaced by a biomedical implant. Even when the skull is not damaged, such accidents can result in brain swelling treated by decompressive craniectomy. Usually, after recovery, the part of the skull that has been removed is replaced by a prosthesis. In such situations, a computational tool able to analyse the choice of prosthesis material depending on the patient's specific activity has the potential to be extremely useful for clinicians...
January 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28159566/a-systematic-review-of-self-administered-questionnaires-for-the-functional-assessment-of-patients-with-knee-disabilities-adapted-into-spanish
#12
S Gómez-Valero, F García-Pérez, M T Flórez-García, J C Miangolarra-Page
OBJECTIVE: The aim of this study was to conduct a systematic review of self-administered knee-disability functional assessment questionnaires adapted to Spanish, analysing the quality of the transcultural adaptation procedure and the psychometric properties of the new version. MATERIAL AND METHODS: A search was conducted in the main biomedical databases to find knee-function assessment scales adapted into Spanish, in order to assess their questionnaire adaptation process as well as their psychometric properties...
January 31, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28158964/hip-and-lumbar-spine-physical-examination-findings-in-people-presenting-with-low-back-pain-with-or-without-lower-extremity-pain
#13
Heidi Prather, Abby Cheng, Karen Steger May, Vaibhav Maheshwari, Linda VanDillen
Study Design Prospective cohort study, cross-sectional design. Background The hip-spine syndrome is described in patients with known arthritis of the hip. This study describes the hip examination findings of people presenting with low back pain (LBP). Objectives (1) report examination findings of the hip in patients with LBP, (2) compare pain and function of patients with positive hip examination findings to those without. Methods An examination and validated questionnaires of spine and hip pain and function were completed...
February 3, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28154987/striving-for-control-lessons-learned-from-a-successful-international-type-1-diabetes-youth-challenge
#14
Olga Kordonouri, Andriani Vazeou, Mauro Scharf, Martina Würsig, Tadej Battelino
AIMS: To demonstrate whether young people with T1D using modern insulin treatment and CGM could successfully participate in extreme sport activity while maintaining good glycemic control. METHODS: The challenge took place in Crete/Greece over 4 days combining a long-distance trek of different levels of severity with final destination the summit of the White Mountains at 2080 m. Eleven participants (5/6 female/male, age 18.2 ± 1.3 years, T1D duration 7.9 ± 3...
February 2, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28148511/injuries-in-elite-korean-fencers-an-epidemiological-study
#15
Ki Jun Park, Song Brian Byung
PURPOSE: We aimed to assess the risk of injury associated with training activities in a population of elite Korean fencers training for the Olympic games. METHODS: We analysed the incidence of sports injuries, based on data prospectively collected over an 8-year period (January 2008 to December 2015) at the National Training Center in Seoul, Korea. The population of elite fencing athletes was stratified according to fencing category (sabre, epee and foil), sex, injury location (body region and site) and injury severity (mild or level I injury, requiring treatment for 1-3 days; moderate or level II injury, requiring treatment for 4-7 days; and severe or level III injury, requiring treatment for ≥8 days)...
February 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28146414/timing-of-lower-extremity-injuries-in-competition-and-practice-in-high-school-sports
#16
Kyle Nagle, Bernadette Johnson, Lina Brou, Tyler Landman, Ada Sochanska, R Dawn Comstock
BACKGROUND: Laboratory-based experiments demonstrate that fatigue may contribute to lower extremity injury (LEI). Few studies have examined the timing of LEIs during competition and practice, specifically in high school athletes across multiple sports, to consider the possible relationship between fatigue and LEIs during sport events. HYPOTHESIS: The purpose of this study was to describe the timing of LEIs in high school athletes within games and practices across multiple sports, with a hypothesis that more and severe injuries occur later in games and practices...
February 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28146405/the-youth-throwing-score
#17
Christopher S Ahmad, Ajay S Padaki, Manish S Noticewala, Eric C Makhni, Charles A Popkin
BACKGROUND: Epidemic levels of shoulder and elbow injuries have been reported recently in youth and adolescent baseball players. Despite the concerning frequency of these injuries, no instrument has been validated to assess upper extremity injury in this patient population. Purpose/Hypothesis: The purpose of this study was to validate an upper extremity assessment tool specifically designed for young baseball players. We hypothesized that this tool will be both reliable and valid. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28129170/scaled-jump-in-gravity-reduced-virtual-environments
#18
MyoungGon Kim, SungIk Cho, Tanh Tran, Seong-Pil Kim, Ohung Kwon, JungHyun Han
The reduced gravity experienced in lunar or Martian surfaces can be simulated on the earth using a cable-driven system, where the cable lifts a person to reduce his or her weight. This paper presents a novel cable-driven system designed for the purpose. It is integrated with a head-mounted display and a motion capture system. Focusing on jump motion within the system, this paper proposes to scale the jump and reports the experiments made for quantifying the extent to which a jump can be scaled without the discrepancy between physical and virtual jumps being noticed by the user...
January 23, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28127676/distal-radius-fractures-in-the-athlete
#19
REVIEW
Casey Beleckas, Ryan Calfee
PURPOSE OF REVIEW: Distal radius fractures are one of the most common upper extremity fractures. Athletes with distal radius fractures are treated according to the same principles as non-athletes but present several unique considerations. At all levels of sport, injured athletes desire to return to play as rapidly as possible. RECENT FINDINGS: Earlier operative fixation may allow an athlete to return to play more quickly. Volar locking plates are most commonly used for operative treatment of distal radius fractures due to their stability and low incidence of complications...
January 27, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28112952/from-sediment-to-top-predators-broad-exposure-of-polyhalogenated-carbazoles-in-san-francisco-bay-u-s-a
#20
Yan Wu, Hongli Tan, Rebecca Sutton, Da Chen
The present study provides the first comprehensive investigation of polyhalogenated carbazoles (PHCZs) contamination in an aquatic ecosystem. PHCZs have been found in soil and aquatic sediment from several different regions, but knowledge of their bioaccumulation and trophodynamics is extremely scarce. This work investigated a suite of 11 PHCZ congeners in San Francisco Bay (United States) sediment and organisms, including bivalves (n = 6 composites), sport fish (n = 12 composites), harbor seal blubber (n = 18), and bird eggs (n = 8 composites)...
February 8, 2017: Environmental Science & Technology
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