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https://www.readbyqxmd.com/read/28912725/enhanced-strength-and-sprint-levels-and-changes-in-blood-parameters-during-a-complete-athletics-season-in-800-m-high-level-athletes
#1
Beatriz Bachero-Mena, Fernando Pareja-Blanco, Juan J González-Badillo
The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conducted during a complete athletics season. Athletes performed sprint tests (20 and 200 m), countermovement jump (CMJ), jump squat (JS), and full squat (SQ) tests. Blood samples (red and white blood profile) and hormones were collected in test 1 (T1), test 3 (T3), and test 5 (T5)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28842109/treatment-of-medial-tibial-stress-syndrome-with-radial-soundwave-therapy-in-elite-athletes-current-evidence-report-on-two-cases-and%C3%A2-proposed-treatment-regimen
#2
Amol Saxena, Brian Fullem, Ludger Gerdesmeyer
Two case reports of high-level athletes with medial tibial stress syndrome (MTSS), 1 an Olympian with an actual stress fracture, are presented. Successful treatment included radial soundwave therapy, pneumatic leg braces, relative rest using an antigravity treadmill, and temporary foot orthoses. Radial soundwave therapy has a high level of evidence for treatment of MTSS. We also present recent evidence of the value of vitamin D assessment. Both patients had a successful outcome with minimal downtime. Finally, a suggested treatment regimen for MTSS is presented...
September 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28828089/relationships-between-sprint-jumping-and-strength-abilities-and-800-m-performance-in-male-athletes-of-national-and-international-levels
#3
Beatriz Bachero-Mena, Fernando Pareja-Blanco, David Rodríguez-Rosell, Juan Manuel Yáñez-García, Ricardo Mora-Custodio, Juan José González-Badillo
This study analysed the relationships between sprinting, jumping and strength abilities, with regard to 800 m running performance. Fourteen athletes of national and international levels in 800 m (personal best: 1:43-1:58 min:ss) completed sprint tests (20 m and 200 m), a countermovement jump, jump squat and full squat test as well as an 800 m race. Significant relationships (p < 0.01) were observed between 800 m performance and sprint tests: 20 m (r = 0.72) and 200 m (r = 0.84). Analysing the 200 m run, the magnitude of the relationship between the first to the last 50 m interval times and the 800 m time tended to increase (1st 50 m: r = 0...
September 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28780628/surgical-excision-of-symptomatic-mature-posttraumatic-myositis-ossificans-characteristics-and-outcomes-in-32-athletes
#4
Sakari Orava, Juha-Jaakko Sinikumpu, Janne Sarimo, Lasse Lempainen, Gideon Mann, Iftach Hetsroni
PURPOSE: The purpose of this study was to report characteristics and outcomes of surgical excision of symptomatic mature posttraumatic myositis ossificans in adult athletes. The hypothesis was that surgical excision of the ossified mass in these circumstances can effectively relief symptoms and result in return to high-level sports with minimal postoperative complications. METHODS: All operations involving excision of posttraumatic heterotopic ossifications performed between 1987 and 2015 were reviewed...
August 5, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28759127/kinematic-stride-cycle-asymmetry-is-not-associated-with-sprint-performance-and-injury-prevalence-in-athletic-sprinters
#5
Thomas Haugen, Jørgen Danielsen, David McGhie, Øyvind Sandbakk, Gertjan Ettema
The aims of this study were to i) quantify the magnitude of kinematic stride cycle asymmetry in high-level athletic sprinters, ii) explore the association between kinematic asymmetry and maximal sprint running performance, and iii) investigate possible associations between kinematic asymmetry and injury prevalence. Twenty-two competitive sprinters (age 23 ±3 yr, height 1.81 ±0.06 m, body mass 75.5 ±5.6 kg, personal best 100-m 10.86 ±0.22 s) performed 2-3 flying sprints over 20 m. Kinematics were recorded in 3D using a motion tracking system with 21 cameras at a 250 Hz sampling rate, allowing assessment of six consecutive steps for each athlete...
July 31, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28728471/implementing-technical-refinement-in-high-level-athletics-exploring-the-knowledge-schemas-of-coaches
#6
Philip E Kearney, Howie J Carson, Dave Collins
This paper explores the approaches adopted by high-level field athletics coaches when attempting to refine an athlete's already well-established technique (long and triple jump and javelin throwing). Six coaches, who had all coached multiple athletes to multiple major championships, took part in semi-structured interviews focused upon a recent example of technique refinement. Data were analysed using a thematic content analysis. The coaching tools reported were generally consistent with those advised by the existing literature, focusing on attaining "buy-in", utilising part-practice, restoring movement automaticity and securing performance under pressure...
July 21, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28671853/physiological-and-anthropometric-characteristics-of-top-level-youth-cross-country-cyclists
#7
Alessandro Fornasiero, Aldo Savoldelli, Roberto Modena, Gennaro Boccia, Barbara Pellegrini, Federico Schena
In the literature there is a lack of data about the development of top level athletes in cross-country mountain biking (XCO). The purpose of this study was to analyze anthropometric and physiological characteristics of some of the best XCO bikers aged between 13 and 16. The study involved 45 bikers (26 males and 19 females) belonging to a youth national team. The evaluations, consisting of anthropometric measures, incremental cycling tests (VO2max, PPO, P@RCP), and 30 s Wingate Tests (PMax, PMean), were conducted over a lapse of 4 years...
July 3, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28639438/body-composition-analysis-to-study-long-term-training-effects-in-elite-male-water-polo-athletes
#8
Giovanni Melchiorri, Valerio Viero, Roberto Sorge, Tamara Triossi, Alessandro Campagna, Stella L Volpe, Dalgisio Lecis, Virginia Tancredi, Angela Andreoli
BACKGROUND: Elite water polo athletes undergo heavy training programs throughout the year, but especially to prepare major competitions, such as the Olympics. Optimal athletic performance is a result of many factors, including proper management of the intensity and volume of training, nutrition and recovery between training sessions. When training is excessive in relation to recovery may occur non functional overreaching (NFO). NFO can degenerate into overtraining syndrome (OTS) resulting in a decrease in athletic performance, with likely changes in body weight and body composition...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28594506/high-risk-stress-fractures-in-elite-athletes
#9
Michael Isiah Sandlin, Andrew J Rosenbaum, Cyrus E Taghavi, Timothy P Charlton, Martin J O'Malley
Surgeons should understand common factors that predispose high-level athletes to stress injuries as well as the importance of vitamin D and specifics related to vascular supply, location of injury, biomechanics, and susceptibility factors in high-level athletes who have stress injuries. Surgeons should be aware of diagnostic- and management-based recommendations for and the outcomes of anterior tibia, medial malleolus, tarsal navicular, and proximal fifth metatarsal stress fractures in professional athletes...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28538763/myosin-binding-protein-c-compound-heterozygous-variant-effect-on-the-phenotypic-expression-of-hypertrophic-cardiomyopathy
#10
Julianny Freitas Rafael, Fernando Eugênio Dos Santos Cruz, Antônio Carlos Campos de Carvalho, Ilan Gottlieb, José Guilherme Cazelli, Ana Paula Siciliano, Glauber Monteiro Dias
Hypertrophic cardiomyopathy (HCM) is an autosomal dominant genetic disease caused by mutations in genes encoding sarcomere proteins. It is the major cause of sudden cardiac death in young high-level athletes. Studies have demonstrated a poorer prognosis when associated with specific mutations. The association between HCM genotype and phenotype has been the subject of several studies since the discovery of the genetic nature of the disease. This study shows the effect of a MYBPC3 compound variant on the phenotypic HCM expression...
April 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28534159/arthroscopic-treatment-successfully-treats-posterior-elbow-impingement-in-an-athletic-population
#11
Jason L Koh, Brad A Zwahlen, David W Altchek, Todd A Zimmerman
PURPOSE: Posterior elbow impingement can cause disabling pain and limited motion during activities involving elbow extension. Less understood is whether arthroscopic treatment, compared to open surgery, can result in effective management of pain, loss of range of motion, and return athletes to previous levels of activity. This study determined whether arthroscopic debridement is a safe and effective treatment for posterior elbow impingement and whether it enables athletes to return to a previous level of function...
May 22, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28439639/searching-for-consensus-in-the-approach-to-patients-with-chronic-lateral-ankle-instability-ask-the-expert
#12
Frederick Michels, H Pereira, J Calder, G Matricali, M Glazebrook, S Guillo, J Karlsson, Jorge Acevedo, Jorge Batista, Thomas Bauer, James Calder, Dominic Carreira, Woojin Choi, Nuno Corte-Real, Mark Glazebrook, Ali Ghorbani, Eric Giza, Stéphane Guillo, Kenneth Hunt, Jon Karlsson, S W Kong, Jin Woo Lee, Frederick Michels, Andy Molloy, Peter Mangone, Kentaro Matsui, Caio Nery, Saturo Ozeki, Chris Pearce, Hélder Pereira, Anthony Perera, Bas Pijnenburg, Fernando Raduan, James Stone, Masato Takao, Yves Tourné, Jordi Vega
PURPOSE: The purpose of this study is to propose recommendations for the treatment of patients with chronic lateral ankle instability (CAI) based on expert opinions. METHODS: A questionnaire was sent to 32 orthopaedic surgeons with clinical and scientific experience in the treatment of CAI. The questions were related to preoperative imaging, indications and timing of surgery, technical choices, and the influence of patient-related aspects. RESULTS: Thirty of the 32 invited surgeons (94%) responded...
April 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28323705/etiology-of-adult-onset-stress-fracture-in-the-lumbar-spine
#13
Fumitake Tezuka, Koichi Sairyo, Toshinori Sakai, Akira Dezawa
STUDY DESIGN: This study was a case series. OBJECTIVE: The purpose of this paper was to present a case series of fresh stress fractures (spondylolysis) in the lumbar spines of adult athletes. SUMMARY OF BACKGROUND DATA: Lumbar spondylolysis is a stress fracture of the pars interarticularis, which is generally considered a disease of children or adolescence. There is only 1 case series written in English reporting on adult-onset fresh spondylolysis...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28252476/athletic-hip-injuries
#14
T Sean Lynch, Asheesh Bedi, Christopher M Larson
Historically, athletic hip injuries have garnered little attention; however, these injuries account for approximately 6% of all sports injuries and their prevalence is increasing. At times, the diagnosis and management of hip injuries can be challenging and elusive for the team physician. Hip injuries are seen in high-level athletes who participate in cutting and pivoting sports that require rapid acceleration and deceleration. Described previously as the "sports hip triad," these injuries consist of adductor strains, osteitis pubis, athletic pubalgia, or core muscle injury, often with underlying range-of-motion limitations secondary to femoroacetabular impingement...
April 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28203599/surgical-management-of-rectus-femoris-avulsion-among-professional-soccer-players
#15
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/28188336/injuries-of-the-obturator-muscles-in-professional-soccer-players
#16
Manuel Wong-On, Antonio Turmo-Garuz, Rafael Arriaza, Jose Manuel Gonzalez de Suso, Luis Til-Perez, Xavier Yanguas-Leite, David Diaz-Cueli, Xavier Gasol-Santa
PURPOSE: Obturator externus and internus muscular tears are uncommon injuries. Only a few case reports exist, mainly in high-level athletes. Our aim is to describe a series of obturator externus and internus muscular tears in professional soccer players. METHODS: Injury data from four teams from the First Division of the Spanish Soccer League were collected over a total of four seasons. Any soccer player who sustained an injury to either the obturator externus or internus identified on magnetic resonance (MRI) was included...
February 10, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28185123/phalanx-fractures-and-dislocations-in-athletes
#17
REVIEW
Franklin Chen, David M Kalainov
PURPOSE OF REVIEW: Phalangeal fractures, dislocations, and fracture-dislocations in the hand are common injuries. We review the current literature on the diagnosis and treatment of these injuries in the athlete. An understanding of the anatomy and its relationship to the mechanism of injury may help to direct appropriate management. Return to play remains an important concern to the patient-athlete. RECENT FINDINGS: Findings from recently published articles reinforce previously established treatment methods in the management of finger phalangeal fractures, dislocations, and fracture-dislocations...
March 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28138984/plasma-volume-reduction-and-hematological-fluctuations-in-high-level-athletes-after-an-increased-training-load
#18
J Bejder, A B Andersen, J P Goetze, N J Aachmann-Andersen, N B Nordsborg
The time course of plasma volume (PV) reduction following an increased training load period is unknown and was investigated. The accompanying fluctuations in [Hb] and OFF-hr score were analyzed in the Athlete Biological Passport. Further, whether fluctuations in plasma albumin, soluble transferrin receptors (sTfR), and pro-atrial natriuretic peptide (proANP) concentrations correlate with PV fluctuations was investigated. Eleven high-level competitive cyclists were investigated for 3 weeks. After initial measurements in week 1, training load was increased ~250% in week 2 followed by a reversion to baseline training load in week 3...
January 30, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28087244/practice-makes-perfect-correlations-between-prior-experience-in-high-level-athletics-and-robotic-surgical-performance-do-not-persist-after-task-repetition
#19
Kevin Shee, Fady M Ghali, Elias S Hyams
OBJECTIVE: Robotic surgical skill development is central to training in urology as well as in other surgical disciplines. Here, we describe a pilot study assessing the relationships between robotic surgery simulator performance and 3 categories of activities, namely, videogames, musical instruments, and athletics. DESIGN: A questionnaire was administered to preclinical medical students for general demographic information and prior experiences in surgery, videogames, musical instruments, and athletics...
July 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28049597/amateur-and-recreational-athletes-return-to-sport-at-a-high-rate-following-hip-arthroscopy-for-femoroacetabular-impingement
#20
Alexander E Weber, Benjamin D Kuhns, Greg L Cvetanovich, Jeffrey S Grzybowski, Michael J Salata, Shane J Nho
PURPOSE: To compare the return-to-play rates, patient-reported outcome (PRO) scores, and satisfaction between high-level amateur athletes and recreational athletes and to evaluate for differences in ability to return to sport in these groups based on patient-related and sport-related characteristics. METHODS: Clinical data were retrieved for 66 (26 male/40 female) consecutive athletes undergoing hip arthroscopy for femoroacetabular impingement. Athletes were classified as high-level amateur or recreational...
April 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
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