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https://www.readbyqxmd.com/read/29238734/platelet-rich-plasma-injection-with-percutaneous-needling-for-recalcitrant-lateral-epicondylitis-comparison-of-tenotomy-and-fenestration-techniques
#1
Michael P Gaspar, Michael A Motto, Sarah Lewis, Sidney M Jacoby, Randall W Culp, A Lee Osterman, Patrick M Kane
Background: Recalcitrant lateral epicondylitis (LE) is a common debilitating condition, with numerous treatment options of varying success. An injection of platelet-rich plasma (PRP) has been shown to improve LE, although it is unclear whether the method of needling used in conjunction with a PRP injection is of clinical importance. Purpose: To determine whether percutaneous needle tenotomy is superior to percutaneous needle fenestration when each is combined with a PRP injection for the treatment of recalcitrant LE...
December 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29238250/influence-of-tennis-racquet-kinematics-on-ball-topspin-angular-velocity-and-accuracy-during-the-forehand-groundstroke
#2
Sunku Kwon, Robin Pfister, Ronald L Hager, Iain Hunter, Matthew K Seeley
Forehand groundstroke effectiveness is important for tennis success. Ball topspin angular velocity (TAV) and accuracy are important for forehand groundstroke effectiveness, and have been extensively studied, previously; despite previous, quality studies, it was unclear whether certain racquet kinematics relate to ball TAV and shot accuracy during the forehand groundstroke. This study evaluated potential relationships between (1) ball TAV and (2) forehand accuracy, and five measures of racquet kinematics: racquet head impact angle (i...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29238248/comparing-matchplay-characteristics-and-physical-demands-of-junior-and-professional-tennis-athletes-in-the-era-of-big-data
#3
Stephanie A Kovalchik, Machar Reid
Differences in the competitive performance characteristics of junior and professional tennis players are not well understood. The present study provides a comprehensive comparative analysis of junior and professional matchplay. The study utilized multiple large-scale datasets covering match, point, and shot outcomes over multiple years of competition. Regression analysis was used to identify differences between junior and professional matchplay. Top professional men and women were found to play significantly more matches, sets, and games compared to junior players of an equivalent ranking...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29227854/surgical-intervention-in-a-complicated-persistent-chyle-leak
#4
Bradley Curtis Tenny, Jeko Madjarov, Travis Shipe
INTRODUCTION: Chyle leak following cervical surgery has a reported incidence of around 2% annually, and the injury primarily favors a left sided involvement. Our patient presented with a right sided neck persistent chyle leak status post cervical neck dissection and radiation therapy. Infection complicated the patient's clinical course, and he inevitably required a right sided VATS thoracic duct ligation. PRESENTATION OF CASE: The patient was a 53-year-old African American male, with a past medical history of T1N0 right tonsil carcinoma status post chemo-radiation in 2016...
November 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29200437/food-cleaning-in-gorillas-social-learning-is-a-possibility-but-not-a-necessity
#5
Damien Neadle, Matthias Allritz, Claudio Tennie
Food cleaning is widespread in the animal kingdom, and a recent report confirmed that (amongst other behaviours) wild western lowland gorillas also show food cleaning. The authors of this report conclude that this behaviour, based on its distribution patterns, constitutes a potential candidate for culture. While different conceptualisations of culture exist, some more and some less reliant on behavioural form copying, all of them assign a special role to social learning processes in explaining potentially cultural behaviours...
2017: PloS One
https://www.readbyqxmd.com/read/29190881/toll-like-receptor-expression-in-human-non-small-cell-lung-carcinoma-potential-prognostic-indicators-of-disease
#6
Alison K Bauer, Brad L Upham, Elizabeth A Rondini, Meredith A Tennis, Kalpana Velmuragan, David Wiese
Introduction: Lung cancer remains the highest cause of cancer mortality worldwide. Toll-like receptors (TLR) are innate immune receptors that have both pro- and anti-tumorigenic properties. Based on findings from epidemiological studies and in rodents, we hypothesized that elevated TLR expression would be a positive prognostic indicator of disease in non-small cell lung carcinoma patients. Results: Higher mRNA expression of TLR1-3 and 5-8 were significantly associated with increased overall survival (OS) when analyzed individually or as a group in both non-small cell lung carcinoma (NSCLC) patients and in the adenocarcinoma (ADC) subtype...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29189597/ultrasonic-percutaneous-tenotomy-of-common-extensor-tendons-for-recalcitrant-lateral-epicondylitis
#7
Christopher T Battista, Matthew A Dorweiler, Michael L Fisher, Bernard F Morrey, Matthew P Noyes
Tennis elbow is a common musculoskeletal condition affecting middle-aged patients with symptoms usually lasting from 6 months to 2 years. The vast majority of individuals will respond to conservative therapy; however, some will require surgical intervention. A new treatment system has been developed for use with ultrasound guidance in the ultrasonic microresection of tendinopathic tissue. This technology has been implemented in the TX1 Tissue Removal System and is used to treat various tendinopathies by debridement using targeted ultrasonic energy...
November 16, 2017: Techniques in Hand & Upper Extremity Surgery
https://www.readbyqxmd.com/read/29187623/skill-not-athleticism-predicts-individual-variation-in-match-performance-of-soccer-players
#8
REVIEW
Robbie S Wilson, Gwendolyn K David, Sean C Murphy, Michael J Angilletta, Amanda C Niehaus, Andrew H Hunter, Michelle D Smith
Just as evolutionary biologists endeavour to link phenotypes to fitness, sport scientists try to identify traits that determine athlete success. Both disciplines would benefit from collaboration, and to illustrate this, we used an analytical approach common to evolutionary biology to isolate the phenotypes that promote success in soccer, a complex activity of humans played in nearly every modern society. Using path analysis, we quantified the relationships among morphology, balance, skill, athleticism and performance of soccer players...
December 13, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29169925/heat-stress-incidence-and-matchplay-characteristics-in-women-s-grand-slam-tennis
#9
Matthew T Smith, Machar Reid, Stephanie Kovalchik, Tim Wood, Rob Duffield
OBJECTIVES: To explore the relationship of wet bulb globe temperature (WBGT) on heat-related incidents and alterations in matchplay and behavioural characteristics in women's tennis at the Australian Open. DESIGN: From 360 main draw Australian Open women's matches (2014-2016), data describing on-court calls for trainers, doctors, cooling devices and water, post match medical consults and matchplay characteristics were collated. METHODS: Data were referenced against estimated WBGT and categorised into standard zones (zone 5: >32...
November 15, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29167349/left-handedness-and-time-pressure-in-elite-interactive-ball-games
#10
Florian Loffing
According to the fighting hypothesis, frequency-dependent selection gives relatively rarer left-handers a competitive edge in duel-like contests and is suggested as one mechanism that ensured the stable maintenance of handedness polymorphism in humans. Overrepresentation of left-handers exclusively in interactive sports seems to support the hypothesis. Here, by referring to data on interactive ball sports, I propose that a left-hander's advantage is linked to the sports' underlying time pressure. The prevalence of left-handers listed in elite rankings increased from low (8...
November 2017: Biology Letters
https://www.readbyqxmd.com/read/29163306/quantifying-contextual-interference-and-its-effect-on-skill-transfer-in-skilled-youth-tennis-players
#11
Tim Buszard, Machar Reid, Lyndon Krause, Stephanie Kovalchik, Damian Farrow
The contextual interference effect is a well-established motor learning phenomenon. Most of the contextual interference effect literature has addressed simple skills, while less is known about the role of contextual interference in complex sport skill practice, particularly with respect to skilled performers. The purpose of this study was to assess contextual interference when practicing the tennis serve. Study 1 evaluated tennis serve practice of nine skilled youth tennis players using a novel statistical metric developed specifically to measure between-skill and within-skill variability as sources of contextual interference...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29162768/coexistence-of-trunk-or-lower-extremity-pain-with-elbow-and-or-shoulder-pain-among-young-overhead-athletes-a-cross-sectional-study
#12
Takuya Sekiguchi, Yoshihiro Hagiwara, Haruki Momma, Masahiro Tsuchiya, Kaoru Kuroki, Kenji Kanazawa, Yutaka Yabe, Shinichiro Yoshida, Masashi Koide, Nobuyuki Itaya, Eiji Itoi, Ryoichi Nagatomi
Elbow or shoulder injuries are common in overhead sports. Because energy derived from the lower extremity passes through the trunk to the upper extremity in overhead motion, a break in such a kinetic chain could lead to arm injuries. However, there is only limited information about the role of the trunk and lower extremity support in preventing elbow or shoulder injuries. This study aimed to explore the association of trunk and lower extremity pain with elbow/shoulder pain among young overhead athletes. We conducted a cross-sectional study using self-reported questionnaires mailed to young athletes belonging to the Miyagi Amateur Sports Association...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29154232/radial-extracorporeal-shockwave-therapy-and-ultrasound-therapy-in-the-treatment-of-tennis-elbow-syndrome
#13
Agnieszka Kubot, Andrzej Grzegorzewski, Marek Synder, Wiesław Szymczak, Piotr Kozłowski
BACKGROUND: Both ultrasound and radial shockwave therapies are used to treat tennis elbow syndrome. The aim of this study was to compare the therapeutic efficacy of both therapies by assessing the reduction in pain intensity and frequency, restoration of mobility, and reduction in the need for pain medication. MATERIAL AND METHODS: The study enrolled 60 people, who were randomly divided into two groups of 30 patients: those treated by radial shockwave therapy and those treated by ultrasound therapy...
October 31, 2017: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/29153894/design-and-construction-of-a-tennis-elbow-brace-with-light-emitting-diode-in-subjects-with-lateral-epicondylitis
#14
Monireh Ahmadi Bani, Mokhtar Arazpour, Yashar Fardahi Tomaj
No abstract text is available yet for this article.
November 16, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/29140914/sequencing-effects-of-neuromuscular-training-on-physical-fitness-in-youth-elite-tennis-players
#15
Jaime Fernandez-Fernandez, Urs Granacher, David Sanz-Rivas, Jose Manuel Sarabia Marín, Jose Luis Hernandez-Davo, Manuel Moya
Fernandez-Fernandez, J, Granacher, U, Sanz-Rivas, D, Sarabia Marín, JM, Hernandez-Davo, JL, and Moya, M. Sequencing effects of neuromuscular training on physical fitness in youth elite tennis players. J Strength Cond Res XX(X): 000-000, 2017-The aim of this study was to analyze the effects of a 5-week neuromuscular training (NMT) implemented before or after a tennis session in prepubertal players on selected components of physical fitness. Sixteen elite and well-trained tennis players with a mean age of 12...
November 14, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29130812/mutual-point-winning-probabilities-mpw-a-new-performance-measure-for-table-tennis
#16
Christophe Ley, Yves Dominicy, Wim Bruneel
We propose a new performance measure for table tennis players: the mutual point-winning probabilities (MPW) as server and receiver. The MPWs quantify a player's chances to win a point against a given opponent, and hence nicely complement the classical match statistics history between two players. These new quantities are based on a Bradley-Terry-type statistical model taking into account the importance of individual points, since a rally at 8-2 in the first set is less crucial than a rally at the score of 9-9 in the final set...
November 13, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29129178/cortisone-injections-for-tennis-elbow-should-be-an-avoid-rather-than-a-recommended-procedure
#17
John W Orchard, Bill Vicenzino
No abstract text is available yet for this article.
November 20, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/29125855/functional-classification-of-grasp-strategies-used-by-hemiplegic-patients
#18
Alicia García Álvarez, Agnès Roby-Brami, Johanna Robertson, Nicolas Roche
This study aimed to identify and qualify grasp-types used by patients with stroke and determine the clinical parameters that could explain the use of each grasp. Thirty-eight patients with chronic stroke-related hemiparesis and a range of motor and functional capacities (17 females and 21 males, aged 25-78), and 10 healthy subjects were included. Four objects were used (tissue packet, teaspoon, bottle and tennis ball). Participants were instructed to "grasp the object as if you are going to use it". Three trials were video-recorded for each object...
2017: PloS One
https://www.readbyqxmd.com/read/29117829/chronic-compartment-syndrome-of-the-mobile-wad-a-case-report
#19
Yukio Abe, Kenzo Fujii
A case of chronic compartment syndrome of the mobile wad in a 15-year-old female amateur tennis player is described. She presented with a 7-month history of radial forearm pain and tenderness with mild swelling, and was unable to swing the tennis racket. MRI showed high intensity within the brachioradialis muscle. Endoscopic fasciotomy showed degeneration of the brachioradialis muscle belly. Complete pain relief was obtained 4 months after the fasciotomy.
December 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/29112886/uncontrolled-manifold-analysis-of-joint-angle-variability-during-table-tennis-forehand
#20
Yoichi Iino, Shinsuke Yoshioka, Senshi Fukashiro
This study was conducted with the objective of evaluating the variance structure of the trunk and racket arm joint angles in table tennis topspin forehand using the uncontrolled manifold (UCM) approach, regarding racket orientation as the task variable. Nine advanced and eight intermediate male collegiate table tennis players performed the topspin strokes against backspin balls. The trunk, upper limb, and racket were modeled as six rigid-link segments with a total of 16 rotation degrees of freedom. The UCM analysis was conducted using 30 trial datasets per participant to quantify the degree of redundancy exploitation needed to stabilize the vertical and horizontal angles of the racket...
November 4, 2017: Human Movement Science
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