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https://www.readbyqxmd.com/read/28280975/the-effect-of-nordic-hamstring-strength-training-on-muscle-architecture-stiffness-and-strength
#1
Kayla D Seymore, Zachary J Domire, Paul DeVita, Patrick M Rider, Anthony S Kulas
PURPOSE: Hamstring strain injury is a frequent and serious injury in competitive and recreational sports. While Nordic hamstring (NH) eccentric strength training is an effective hamstring injury-prevention method, the protective mechanism of this exercise is not understood. Strength training increases muscle strength, but also alters muscle architecture and stiffness; all three factors may be associated with reducing muscle injuries. The purpose of this study was to examine the effects of NH eccentric strength training on hamstring muscle architecture, stiffness, and strength...
March 9, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28263409/cryotherapy-induces-an-increase-in-muscle-stiffness
#2
Maxime Point, Gaël Guilhem, François Hug, Antoine Nordez, Alain Frey, Lilian Lacourpaille
Although cold application (i.e., cryotherapy) may be useful to treat sports injuries and to prevent muscle damage, it is unclear whether it has adverse effects on muscle mechanical properties. This study aimed to determine the effect of air-pulsed cryotherapy on muscle stiffness estimated using ultrasound shear wave elastography. Myoelectrical activity, ankle passive torque, shear modulus (an index of stiffness) and muscle temperature of the gastrocnemius medialis were measured before, during an air-pulsed cryotherapy (-30°) treatment of 4 sets of 4 minutes with 1 min recovery in between, and during a 40-min post-cryotherapy period...
March 6, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28251260/intratendinous-adipose-derived-stromal-vascular-fraction-svf-injection-provides-a-safe-efficacious-treatment-for-achilles-tendinopathy-results-of-a-randomized-controlled-clinical-trial-at-a-6-month-follow-up
#3
Federico Giuseppe Usuelli, Miriam Grassi, Camilla Maccario, Marco Vigano', Luciano Lanfranchi, Umberto Alfieri Montrasio, Laura de Girolamo
PURPOSE: Although platelet-rich plasma (PRP) injection has shown controversial results for the treatment of Achilles tendinopathy, it remains the most used biological treatment. Recent findings seem to demonstrate that the stromal vascular fraction (SVF) within adipose tissue may counteract the impaired tendon homeostasis. The aim of this study was to prospectively compare the efficacy of PRP and SVF injection for the treatment of non-insertional Achilles tendinopathy. METHODS: Fourty-four patients were recruited in the study; 23 of them were assigned to the PRP group whereas 21 to the SVF group, treated unilaterally or bilaterally for a total of 28 tendons per group...
March 1, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28250140/are-ultrasound-findings-similar-in-patients-with-axial-spondyloarthritis-and-in-athlete-entheses
#4
Marie-Alix Lanfranchi, Olivier Leluc, Alice Tavano, Cécile Wormser, Sophie Morange, Christophe Chagnaud, Vincent Pradel, Pierre Lafforgue, Thao Pham
OBJECTIVE: Enthesitis is the spondyloarthritis (SpA) landmark, but can also be seen after entheses overuse, such as during intensive sport. METHODS: We aimed to compare entheses ultrasound (US) findings in a prospective cross-sectional study of 30 axial SpA cases, 30 athletes, and 29 controls. RESULTS: Mean (SD) MAdrid Sonographic Enthesis Index (MASEI) score was 26.3 (13), 12.2 (7), and 10.4 (6) in patients with SpA, athletes, and non-athlete control groups, respectively (p < 0...
March 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28241495/state-of-the-art-methods-for-skeletal-muscle-glycogen-analysis-in-athletes-the-need-for-novel-non-invasive-techniques
#5
REVIEW
Jacob Greene, Julien Louis, Olga Korostynska, Alex Mason
Muscle glycogen levels have a profound impact on an athlete's sporting performance, thus measurement is vital. Carbohydrate manipulation is a fundamental component in an athlete's lifestyle and is a critical part of elite performance, since it can provide necessary training adaptations. This paper provides a critical review of the current invasive and non-invasive methods for measuring skeletal muscle glycogen levels. These include the gold standard muscle biopsy, histochemical analysis, magnetic resonance spectroscopy, and musculoskeletal high frequency ultrasound, as well as pursuing future application of electromagnetic sensors in the pursuit of portable non-invasive quantification of muscle glycogen...
February 23, 2017: Biosensors
https://www.readbyqxmd.com/read/28214966/anomalous-coronary-arteries-and-myocardial-bridges-risk-stratification-in-children-using-novel-cardiac-catheterization-techniques
#6
Hitesh Agrawal, Silvana Molossi, Mahboob Alam, S Kristen Sexson-Tejtel, Carlos M Mery, E Dean McKenzie, Charles D Fraser, Athar M Qureshi
The evaluation of the vast majority of children with anomalous aortic origin of a coronary artery (AAOCA) and/or myocardial bridges is performed with non-invasive testing. However, a subset of these patients may benefit from invasive testing for risk stratification. All patients included in the Coronary Anomalies Program (CAP) at Texas Children's Hospital who underwent cardiac catheterization were included. Techniques included selective coronary angiograms (SCA), intravascular ultrasound (IVUS), and fractional flow reserve (FFR) measurements with provocative testing using adenosine and/or dobutamine infusions...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28194375/rehabilitation-of-hamstring-muscle-injuries-a-literature-review
#7
REVIEW
Gabriel Amorim Ramos, Gustavo Gonçalves Arliani, Diego Costa Astur, Alberto de Castro Pochini, Benno Ejnisman, Moisés Cohen
Hamstring injuries are among the most frequent in sports. The high relapse rate is a challenge for sports medicine and has a great impact on athletes and sport teams. The treatment goal is to provide the athlete the same functional level as before the injury. Thus, functional rehabilitation is very important to the success of the treatment. Currently, several physical therapy modalities are used, according to the stage of the lesion, such as cryotherapy, laser therapy, therapeutic ultrasound, therapeutic exercise, and manual therapy...
January 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28189038/the-importance-of-body-mass-normalisation-for-ultrasound-measurement-of-the-transversus-abdominis-muscle-the-effect-of-age-gender-and-sport-practice
#8
Pawel Linek
BACKGROUND: Some studies have not considered body mass as a confounder in TrA analysis, which may have led to improper interpretation of results. OBJECTIVES: To assess the differences in the effect of age, gender and physical activity between normalised for body mass and actual values of the TrA as well as to establish the effect of age, gender and physical activity on normalised for body mass TrA thickness in adolescents. DESIGN: The study was a cross-sectional study conducted at selected primary and secondary schools, and colleges in the Silesian region of Poland...
April 2017: Musculoskelet Sci Pract
https://www.readbyqxmd.com/read/28188545/a-review-of-mallet-finger-and-jersey-finger-injuries-in-the-athlete
#9
REVIEW
Abdo Bachoura, Alex J Ferikes, John D Lubahn
PURPOSE OF REVIEW: The purposes of this review are to discuss the diagnosis and management of mallet and jersey finger injuries in athletes and to highlight how treatment impacts return to play. RECENT FINDINGS: Mallet finger: although numerous non-operative and operative techniques have been described, there continues to be little consensus regarding the optimal procedure. Jersey finger: ultrasound appears to be a cost-effective imaging modality that may be useful for preoperative planning...
March 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28155066/pediatric-musculoskeletal-injuries-role-of-ultrasound-and-magnetic-resonance-imaging
#10
REVIEW
C L Piccolo, M Galluzzo, S Ianniello, M Trinci, A Russo, E Rossi, M Zeccolini, A Laporta, G Guglielmi, V Miele
Pediatric musculoskeletal system is particularly prone to traumatic and sports-related injuries, both acute and chronic, i.e., overuse injuries, because of inherent conditions of weakness, such as the open physis, representing the weakest aspect within the bone, the ligamentous supports and changing biomechanics. Being aware that a quick diagnosis is essential to preserve the good functionality of the limb involved, it is mandatory for the radiologist to recognize the most common patterns of these injuries, identifying those requiring a prompt surgery, as well as be confident with the technique performed, and be supported by an important background experience and knowledge skills...
March 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28145739/achilles-tendon-loading-during-heel-raising-and-lowering-exercises
#11
Andrew Revak, Keith Diers, Thomas W Kernozek, Naghmeh Gheidi, Christina Olbrantz
CONTEXT: Achilles tendinopathies are common injuries during sport participation, although men are more prone to Achilles tendon injuries than women. Heel-raising and -lowering exercises are typically suggested for Achilles tendon rehabilitation. OBJECTIVE: To compare the estimated Achilles tendon loading variables and the ankle range of motion (ROM) using a musculoskeletal model during commonly performed heel-raising and -lowering exercises. DESIGN: Controlled laboratory study...
February 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28142366/benign-peripheral-nerve-sheath-tumor-in-a-distance-runner
#12
Laura E Stanley, David J Berkoff
A 31-year-old female runner presented to physical therapy via direct access with an 8-month history of atraumatic left lateral calf pain. Following 1 month of physical therapy, the patient was referred to an orthopaedic sports medicine physician. Ultrasound imaging revealed a 2-cm hypoechoic mass with well-defined margins in the left proximal lateral soleus, while Doppler ultrasound demonstrated increased color flow surrounding the mass. Magnetic resonance imaging findings were consistent with a nerve sheath tumor, and ultrasound-guided tissue biopsy determined the mass to be a benign peripheral nerve sheath tumor...
February 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28050542/epidemiological-profile-of-patients-diagnosed-with-athletic-pubalgia
#13
Anderson Luiz de Oliveira, Carlos Vicente Andreoli, Benno Ejnisman, Roberto Dantas Queiroz, Osvaldo Guilherme Nunes Pires, Guilherme Guadagnini Falótico
OBJECTIVE: To evaluate the clinical and epidemiological characteristics of pubalgia in patients from a Sports Medicine Center. METHODS: Data analysis from medical records of patients with athletic pubalgia attended to from January 2007 to January 2015. The diagnosis was made by an experienced hip surgeon, complemented with pelvic X-ray, abdominal wall ultrasound, and magnetic resonance imaging of the pelvis. RESULTS: Among 43 patients, 42 were men, with mean age of 33 years...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28042750/pseudo-aneurysm-a-rare-complication-of-ankle-arthroscopy
#14
Mathew Davis, David Brooks, William Bryceson
A 53-year-old woman underwent arthroscopic ankle debridement for posttraumatic arthrofibrosis 2 years following a bimalleolar ankle fracture. Twelve months postarthroscopy, the patient returned to physical therapy with a 2-week history of pain and prominent swelling to her anterior ankle. Urgent follow-up was arranged with an orthopaedic surgeon, who ordered a radiograph and magnetic resonance imaging, which demonstrated a large heterogeneous mass. Doppler ultrasound was also ordered and confirmed the mass to be a pseudo-aneurysm of the anterior tibial artery...
January 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27996378/fast-early-recovery-after-transabdominal-preperitoneal-repair-in-athletes-with-sportsman-s-groin-a-prospective-clinical-cohort-study
#15
Herwig Pokorny, Christoph Resinger, Ines Fischer, Veit Lorenz, Helge Noske, Stefan Podar, Friedrich Längle, Rudolf Schrittwieser
BACKGROUND: Current literature on chronic groin pain suggests that laparoscopic mesh repair on athletes enables a faster recovery and subsequent return to unrestricted athletic activities. The aim of this study was to evaluate the role of transabdominal preperitoneal (TAPP) mesh repair in athletes resistant to conservative therapy. METHODS: A multidisciplinary approach with tailored physiotherapy. Thirty-nine professional athletes with chronic groin pain were referred to surgery at a single clinic...
March 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/27903163/ultrasound-imaging-of-ulnar-collateral-ligament-injury
#16
Arie J van Duijn, Shawn D Felton
The patient was an 18-year-old collegiate baseball pitcher who injured his right throwing elbow during an overhead slider pitch. As a part of a study, preinjury ultrasound images of the throwing arm were obtained 2 weeks prior to the injury. One day postinjury, repeat ultrasound imaging of the medial elbow was performed. The attending team physician ordered a magnetic resonance arthrogram 2 days after injury, which confirmed the presence of a complete tear of the ulnar collateral ligament. J Orthop Sports Phys Ther 2016;46(12):1086...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27900300/treatment-of-proximal-hamstring-tendinopathy-related-sciatic-nerve-entrapment-presentation-of-an-ultrasound-guided-intratissue-percutaneous-electrolysis-application
#17
Gabriele Mattiussi, Carlos Moreno
BACKGROUND: Proximal Hamstring Tendinopathy-related Sciatic Nerve Entrapment (PHTrSNE) is a neuropathy caused by fibrosis interposed between the semimembranosus tendon and the sciatic nerve, at the level of the ischial tuberosity. METHODS: Ultrasound-guided Intratissue Percutaneous Electrolysis (US-guided EPI) involves galvanic current transfer within the treatment target tissue (fibrosis) via a needle 0.30 to 0.33 mm in diameter. The galvanic current in a saline solution instantly develops the chemical process of electrolysis, which in turn induces electrochemical ablation of fibrosis...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27868077/platelet-rich-plasma-injections-with-needle-tenotomy-for-gluteus-medius-tendinopathy-a-registry-study-with-prospective-follow-up
#18
James J Lee, Julian R Harrison, Kwadwo Boachie-Adjei, Elizabeth Vargas, Peter J Moley
BACKGROUND: Gluteal tendinopathy is a prevalent condition that can be associated with significant pain and disability. To date, no studies have prospectively assessed the efficacy of intratendinous platelet-rich plasma (PRP) injections as a minimally invasive treatment for gluteus medius tendinopathy. PURPOSE: To prospectively assess the efficacy of intratendinous PRP injections as treatment for chronic recalcitrant gluteus medius tendinopathy. STUDY DESIGN: Case series; Level of evidence, 4...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27854082/randomized-controlled-trial-comparing-the-effectiveness-of-the-ultrasound-guided-galvanic-electrolysis-technique-usget-versus-conventional-electro-physiotherapeutic-treatment-on-patellar-tendinopathy
#19
F Abat, J L Sánchez-Sánchez, A M Martín-Nogueras, J I Calvo-Arenillas, J Yajeya, R Méndez-Sánchez, J C Monllau, P E Gelber
BACKGROUND: Patellar tendinopathy has a high prevalence rate among athletes. Different therapeutic options can be found in the current literature, but none of them has been clearly established as the gold standard. The purpose of this study is to compare, in a randomized controlled trial, the clinical efficacy of eccentric exercise combined with either an ultrasound-guided galvanic electrolysis technique (USGET) or conventional electrophysiotherapy to treat patellar tendinopathy. METHODS: Sixty patients diagnosed with patellar tendinopathy were randomized into two groups...
December 2016: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/27852593/humeral-retrotorsion-and-glenohumeral-motion-in-youth-baseball-players-compared-with-age-matched-nonthrowing-athletes
#20
Elliot M Greenberg, J Todd R Lawrence, Alicia Fernandez-Fernandez, Philip McClure
BACKGROUND: Baseball players exhibit a more posteriorly oriented humeral head in their throwing arm. This is termed humeral retrotorsion (HRT) and likely represents a response to the stress of throwing. This adaptation is thought to occur while the athlete is skeletally immature, however currently there is limited research detailing how throwing activity in younger players influences the development of HRT. In addition, it is presently unclear how this changing osseous orientation may influence shoulder motion within young athletes...
February 2017: American Journal of Sports Medicine
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