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https://www.readbyqxmd.com/read/28536215/sesamoid-osteonecrosis-treated-with-radial-extracorporeal-shock-wave-therapy
#1
Dawn Thompson, Nikos Malliaropoulos, Nat Padhiar
Sesamoid osteonecrosis is a disabling condition resulting in severe forefoot pain, for which there are limited treatment options. We present a 52-year-old man with 1-year history of pain, aggravated by walking and playing tennis. On examination, pain was localised to plantar aspect of the first metatarsophalangeal joint. Imaging revealed evolving end-stage avascular necrosis of lateral sesamoid with early secondary degenerative changes. Previous exhaustive conservative treatment had been unsuccessful in alleviating his pain...
May 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28530485/energy-requirement-assessment-in-japanese-table-tennis-players-using-the-doubly-labeled-water-method
#2
Hiroyuki Sagayama, Genki Hamaguchi, Makiko Toguchi, Mamiko Ichikawa, Yosuke Yamada, Naoyuki Ebine, Yasuki Higaki, Hiroaki Tanaka
Total daily energy expenditure (TEE) and physical activity level (PAL) are important for adequate nutritional management in athletes. The PAL of table tennis has been estimated to about 2.0: it is categorized as a moderate-activity sport (4.0 metabolic equivalents [METs]) in the Compendium of Physical Activities. However, modern table tennis makes high physiological demands. The aims of the present study were to examine (1) TEE and PAL of competitive table tennis players and (2) the physiological demands of various types of table tennis practice...
May 22, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/28529014/comparative-prospective-study-between-medial-and-lateral-distal-tibial-locking-compression-plates-for-distal-third-tibial-fractures
#3
Sandeep Garg, Vikram Khanna, Mahaveer Prashad Goyal, Narendra Joshi, Amrut Borade, Ishan Ghuse
PURPOSE: Tibial fracture is the most common long bone fracture. Distal third tibial fractures are challenging though open reduction and plating can result in anatomical reduction and rigid fixation. This paper aimed to evaluate and compare the results of medial and lateral locking compression plates for distal third tibial fractures. METHODS: This prospective clinical study involved 36 patients with distal tibial fractures admitted in Department of Orthopaedics, Sawai Mansingh Medical College & Affiliated Hospital, Jaipur, India, from June 2011 to May 2012, including 29 closed fractures and 7 open fractures at the mean age of 38...
April 14, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28508338/fluid-balance-in-team-sport-athletes-and-the-effect-of-hypohydration-on-cognitive-technical-and-physical-performance
#4
REVIEW
Ryan P Nuccio, Kelly A Barnes, James M Carter, Lindsay B Baker
Sweat losses in team sports can be significant due to repeated bursts of high-intensity activity, as well as the large body size of athletes, equipment and uniform requirements, and environmental heat stress often present during training and competition. In this paper we aimed to: (1) describe sweat losses and fluid balance changes reported in team sport athletes, (2) review the literature assessing the impact of hypohydration on cognitive, technical, and physical performance in sports-specific studies, (3) briefly review the potential mechanisms by which hypohydration may impact team sport performance, and (4) discuss considerations for future directions...
May 15, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28503289/the-three-portal-technique-in-arthroscopic-lateral-epicondylitis-release
#5
Ashok Gowda, Gannon Kennedy, Stacey Gallacher, Jennie Garver, Theodore Blaine
Lateral epicondylitis, commonly referred to as tennis elbow, is a syndrome characterized by pain over the origin of the common extensor muscles of the fingers, hand and wrist at the lateral epicondyle. Reports of 70-90% response to conservative treatment at one year have been documented in the literature though refractory cases often require surgical management. Arthroscopic treatment of lateral epicondylitis allows for intra-articular visualization for concomitant pathology and localization of the Extensor Carpi Radialis Brevis tendon...
November 17, 2016: Orthopedic Reviews
https://www.readbyqxmd.com/read/28496154/young-children-copy-cumulative-technological-design-in-the-absence-of-action-information
#6
E Reindl, I A Apperly, S R Beck, C Tennie
The ratchet effect - the accumulation of beneficial changes in cultural products beyond a level that individuals could reach on their own - is a topic of increasing interest. It is currently debated which social learning mechanisms allow for the generation and transmission of cumulative culture. This study focused on transmission, investigating whether 4- to 6-year-old children were able to copy cumulative technological design and whether they could do so without action information (emulation). We adapted the spaghetti tower task, previously used to test for accumulation of culture in human adults...
May 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28491026/-neural-efficiency-of-athletes-brain-during-visuo-spatial-task-an-fmri-study-on-table-tennis-players
#7
Zhiping Guo, Anmin Li, Lin Yu
Long-term training leads experts to develop a focused and efficient organization of task-related neural networks. "Neural efficiency" hypothesis posits that neural activity is reduced in experts. Here we tested the following working hypotheses: compared to non-athletes, athletes showed lower cortical activation in task-sensitive brain areas during the processing of sports related and sports unrelated visuo-spatial tasks. To address this issue, cortical activation was examined with fMRI in 14 table tennis athletes and 14 non-athletes while performing the visuo-spatial tasks...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28480167/a-hard-ball-for-a-tennis-player-a-rare-case-of-large-calcifying-sertoli-cell-testicular-tumor
#8
Simone Albisinni, Ibrahim Biaou, Fouad Aoun, Romain Diamand, Ksenija Limani, Alexandre Peltier, Roland van Velthoven, Eric Hawaux
A 46 year old tennis player was addressed to our clinic after incidental finding of right testicular calcification on plain x-ray of the spine. Urologic consultation revealed a hard non-tender testicular mass which required inguinal orchiectomy. Final histology revealed large cell calcifying Sertoli cell tumor: we herein present the case and review current physiopathology of such rare testicular disease.
July 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28470889/in-vitro-induction-of-human-regulatory-t-cells-itregs-using-conditions-of-low-tryptophan-plus-kynurenines
#9
K L Hippen, R S O'Connor, A M Lemire, A Saha, E A Hanse, N C Tennis, S C Merkel, A Kelekar, J L Riley, B L Levine, C H June, L S Kean, M L MacMillan, J S Miller, J E Wagner, D H Munn, B R Blazar
Thymic regulatory T cells (tTreg) or induced Tregs (iTregs) suppress murine acute graft-versus-host disease (GVHD). Previously we demonstrated that plasmacytoid dendritic cell (pDC) indoleamine 2,3-dioxygenase (IDO) fosters the in vitro development of human iTregs via tryptophan depletion and kynurenine (Kyn) metabolites. We now show that stimulation of naïve CD4+ T cells in low tryptophan (Low Trp) plus Kyn supports human iTreg generation. In vitro, low Trp+Kyn iTreg and tTregs potently suppress Teffector cell proliferation equivalently but are phenotypically distinct...
May 4, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28464437/relationship-between-sports-experience-and-executive-function-in-6-12-year-old-children-independence-from-physical-fitness-and-moderation-by-gender
#10
Toru Ishihara, Shigemi Sugasawa, Yusuke Matsuda, Masao Mizuno
The purpose of this study was to evaluate the relationship between sports experience (i.e., tennis experience) and executive function in children while controlling for physical activity and physical fitness. Sixty-eight participants (6-12 years old, 34 males and 34 females) were enrolled in regular tennis lessons (mean = 2.4 years, range = 0.1-7.3 years) prior to the study. Executive functions, including inhibitory control (the Stroop Color-Word Test), working memory (the 2-back Task), and cognitive flexibility (the Local-global Task) were evaluated...
May 2, 2017: Developmental Science
https://www.readbyqxmd.com/read/28461918/lateral-epicondylitis-of-the-elbow
#11
REVIEW
Alfonso Vaquero-Picado, Raul Barco, Samuel A Antuña
Lateral epicondylitis, also known as 'tennis elbow', is a very common condition affecting mainly middle-aged patients.The pathogenesis remains unknown but there appears to be a combination of local tendon pathology, alteration in pain perception and motor impairment.The diagnosis is usually clinical but some patients may benefit from additional imaging for a specific differential diagnosis.The disease has a self-limiting course of between 12 and 18 months, but in some patients, symptoms can be persistent and refractory to treatment...
November 2016: EFORT Open Rev
https://www.readbyqxmd.com/read/28459617/outpatient-closed-loop-control-with-unannounced-moderate-exercise-in-adolescents-using-zone-model-predictive-control
#12
Lauren M Huyett, Trang T Ly, Gregory P Forlenza, Suzette Reuschel-DiVirgilio, Laurel H Messer, R Paul Wadwa, Ravi Gondhalekar, Francis J Doyle, Jordan E Pinsker, David M Maahs, Bruce A Buckingham, Eyal Dassau
BACKGROUND: The artificial pancreas (AP) has the potential to improve glycemic control in adolescents. This article presents the first evaluation in adolescents of the Zone Model Predictive Control and Health Monitoring System (ZMPC+HMS) AP algorithms, and their first evaluation in a supervised outpatient setting with frequent exercise. MATERIALS AND METHODS: Adolescents with type 1 diabetes underwent 3 days of closed-loop control (CLC) in a hotel setting with the ZMPC+HMS algorithms on the Diabetes Assistant platform...
May 1, 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28448712/-quadratus-femoris-muscle-tear
#13
L G Domínguez-Gasca, J L Alcocer-Maldonado, J Magaña-Reyes, L G Domínguez-Carrillo
BACKGROUND: Quadratus femoris tear is an uncommon injury that usually cause hip pain, it incidence is unknown. The patient can suffer of posterior gluteal pain or groin pain or both, which makes accurate diagnosis difficult, because the differential diagnosis of hip pain is broad. CLINICAL CASE: A 65 years old male, with gluteal and groin pain presented during tennis; evaluated by neurologist with lumbosacral magnetic resonance imaging (MRI) (normal) and referred to physical therapy, a pelvic MRI was required, finding an unsuspected quadratus femoris tear...
September 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28447871/the-effects-of-specialization-and-sex-on-anterior-y-balance-performance-in-high-school-athletes
#14
Madeline M Miller, Jessica L Trapp, Eric G Post, Stephanie M Trigsted, Timothy A McGuine, M Alison Brooks, David R Bell
BACKGROUND: Sport specialization and movement asymmetry have been separately discussed as potential risk factors for lower extremity injury. Early specialization may lead to the development of movement asymmetries that can predispose an athlete to injury, but this has not been thoroughly examined. HYPOTHESIS: Athletes rated as specialized would exhibit greater between-limb anterior reach asymmetry and decreased anterior reach distance on the Y-balance test (YBT) as compared with nonspecialized high school athletes, and these differences would not be dependent on sex...
April 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28446891/moral-attitudes-predict-cheating-and-gamesmanship-behaviors-among-competitive-tennis-players
#15
Fabio Lucidi, Arnaldo Zelli, Luca Mallia, Giampaolo Nicolais, Lambros Lazuras, Martin S Hagger
Background: The present study tested Lee et al.'s (2008) model of moral attitudes and cheating behavior in sports in an Italian sample of young tennis players and extended it to predict behavior in actual match play. In the first phase of the study we proposed that moral, competence and status values would predict prosocial and antisocial moral attitudes directly, and indirectly through athletes' goal orientations. In the second phase, we hypothesized that moral attitudes would directly predict actual cheating behavior observed during match play...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28433808/comparisons-of-hip-strength-and-countermovement-jump-height-in-elite-tennis-players-with-and-without-acute-history-of-groin-injuries
#16
V Moreno-Pérez, A Lopez-Valenciano, D Barbado, J Moreside, J L L Elvira, F J Vera-Garcia
BACKGROUND: Despite the high groin-injury (GI) prevalence in tennis, no studies have assessed the extent to which intrinsic groin injury risk factors, such as hip muscle strength, have recovered in elite tennis players with a history of previous GI. OBJECTIVE: To investigate whether elite tennis players with a history of GI show differences in hip strength and jump height between injured and uninjured limbs and compared with dominant limb in tennis players without history of acute groin-injuries (NGI)...
June 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28433443/arthroscopic-debridement-versus-platelet-rich-plasma-injection-a-prospective-randomized-comparative-study-of-chronic-lateral-epicondylitis-with-a-nearly-2-year-follow-up
#17
Giovanni Merolla, Fabio Dellabiancia, Annamaria Ricci, Maria Pia Mussoni, Simonetta Nucci, Gustavo Zanoli, Paolo Paladini, Giuseppe Porcellini
PURPOSE: The purpose of this prospective, randomized study was to compare the efficacy of autologous platelet-rich plasma (PRP) injections and arthroscopic lateral release in treating chronic lateral epicondylitis (LE). METHODS: Patients who had a clinical diagnosis of LE confirmed by ultrasound (US) were included in this study. A total of 101 patients received arthroscopic release (n = 50) or US-guided PRP injections (n = 51). Outcomes were assessed using a visual analog scale for pain, the Patient-Rated Tennis Elbow Evaluation (PRTEE), and a calibrated hand dynamometer for grip strength...
April 19, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28422770/technical-alterations-during-an-incremental-field-test-in-elite-male-tennis-players
#18
Cyril Brechbuhl, Olivier Girard, Grégoire P Millet, Laurent Schmitt
PURPOSE: We investigated technical and physiological responses along with their relationships during an incremental field test to exhaustion specific to tennis (TEST) in elite players. METHODS: Twenty male elite tennis players completed TEST, which consisted of hitting alternatively forehand and backhand strokes at increasing ball frequency (ball machine) every minute. Ball accuracy (BA), ball velocity (BV) and tennis performance index (TP = BA x BV) were determined by radar and video analysis for each stroke, in addition to cardiorespiratory responses and blood lactate concentrations...
April 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28421841/adolescent-with-prolonged-toxidrome
#19
Jami Johnson, Kristie Williams, William Banner
A 13-year-old female was presented to the emergency department following an intentional ingestion. The patient developed significant toxicity including multiple, discreet tonic-clonic seizures. Despite appropriate resuscitation and antidotal management, the patient's symptoms persisted for more than 36 hours post-ingestion. An upright abdominal radiograph was performed revealing a radiopacity suggesting a pharmacobezoar. An esophagogastroduodenoscopy was performed with successful removal of a tennis ball-sized pharmacobezoar...
June 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28417687/does-a-perceptuomotor-skills-assessment-have-added-value-to-detect-talent-for-table-tennis-in-primary-school-children
#20
Irene R Faber, Johan Pion, Goran Munivrana, Niels R Faber, Maria W G Nijhuis-Van der Sanden
Talent detection intends to support lifelong sports participation, reduce dropouts and stimulate sports at the elite level. For this purpose it is important to reveal the specific profile which directs children to the sports that connect to their strengths and preferences. This study evaluated a perceptuomotor skills assessment as part of talent detection for table tennis, a sport in which perceptuomotor skills are considered essential to cope with the difficult technical aspects. Primary school children (n = 121) and gifted young table tennis players (n = 146) were assessed using the Dutch perceptuomotor skills assessment measuring "ball control" and "gross motor function"...
April 18, 2017: Journal of Sports Sciences
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