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https://www.readbyqxmd.com/read/29165733/impact-of-type-of-sport-gender-and-age-on-red-blood-cell-deformability-of-elite-athletes
#1
Fabian Tomschi, Wilhelm Bloch, Marijke Grau
Our objective was to detect possible differences in red blood cell (RBC) deformability of elite athletes performing different types of sports and being of different age and gender.182 athletes were included in this cross-sectional study. RBC deformability was measured using the laser-assisted optical rotational cell-analyzer. Maximal elongation index (EI max) and shear stress at half-maximum deformation (SS 1/2) were calculated. The ratio SS 1/2 /EI max (EI Ratio) was calculated with low values representing high RBC deformation...
November 17, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29165732/effect-of-melatonin-supplementation-on-antioxidant-status-and-dna-damage-in-high-intensity-trained-athletes
#2
Manuel Ortiz-Franco, Elena Planells, Bartholomé Quintero, Dario Acuña-Castroviejo, Iryna Rusanova, Germaine Escames, Jorge Molina-López
The aim of the study was to evaluate the effect of melatonin supplementation on antioxidant capacity and DNA damage in high intensity interval training (HIIT) athletes. A 2-week randomised, double-blinded, placebo-controlled trial with two groups was conducted. Placebo (PG) and melatonin (MG) (20 mg/d) athletes were monitored over a two-week period of HIIT and strength training. The total antioxidant capacity (TAC) and the glutathione peroxidase (GPx) and superoxide dismutase (SOD) activities were analysed in blood samples...
November 17, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29164533/lower-serum-zinc-concentration-despite-higher-dietary-zinc-intake-in-athletes-a-systematic-review-and-meta-analysis
#3
REVIEW
Anna Chu, Cushla Holdaway, Trishala Varma, Peter Petocz, Samir Samman
BACKGROUND: Zinc is an essential trace element that has been implicated in numerous biological functions, including immunity, energy metabolism and antioxidative processes. Recent evaluations of the literature have provided evidence of significant acute changes in zinc metabolism following a bout of aerobic exercise. OBJECTIVE: The aim of this study was to determine the zinc status of trained athletes compared with control populations, as described in cross-sectional studies...
November 21, 2017: Sports Medicine
https://www.readbyqxmd.com/read/29164167/single-leg-hop-test-performance-and-isokinetic-knee-strength-after-anterior-cruciate-ligament-reconstruction-in-athletes
#4
Ted Sueyoshi, Akihiro Nakahata, Gen Emoto, Tomoki Yuasa
Background: Isokinetic strength and hop tests are commonly used to assess athletes' readiness to return to sport after knee surgery. Purpose/Hypothesis: The purpose of this study was to investigate the results of single-leg hop and isokinetic knee strength testing in athletes who underwent anterior cruciate ligament reconstruction (ACLR) upon returning to sport participation as well as to study the correlation between these 2 test batteries. The secondary purpose was to compare the test results by graft type (patellar tendon or hamstring)...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29164165/platelet-rich-plasma-for-primary-treatment-of-partial-ulnar-collateral-ligament-tears-mri-correlation-with-results
#5
J Banks Deal, Ed Smith, Wendell Heard, Michael J O'Brien, Felix H Savoie
Background: Jobe revolutionized the treatment of medial ulnar collateral ligament (MUCL) tears with his reconstruction technique. However, not all MUCL injuries require operative management; Rettig showed that 42% of MUCL injuries respond to conservative management. This was improved by Podesta, who showed that augmentation of nonoperative management with platelet-rich plasma (PRP) and magnetic resonance imaging (MRI) for detecting partial MUCL tears resulted in significantly higher success rates...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29164163/neurocognitive-deficits-of-concussed-adolescent-athletes-at-self-reported-symptom-resolution-in-the-zurich-guidelines-era
#6
Peter K Kriz, Rebekah Mannix, Alex M Taylor, Danielle Ruggieri, William P Meehan
Background: Previous studies have evaluated high school and collegiate athletes in the pre-Zurich guidelines era; whether adolescent athletes demonstrate similar neurocognitive decrements in the current concussion management era remains unclear. Purpose: To assess for the presence of neurocognitive deficits in adolescents with a sport-related concussion at the time of self-reported symptom resolution. Study Design: Cross-sectional study; Level of evidence, 3...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29164161/determining-the-most-important-factors-involved-in-ranking-orthopaedic-sports-medicine-fellowship-applicants
#7
Rishi Baweja, Matthew J Kraeutler, Mary K Mulcahey, Eric C McCarty
Background: Orthopaedic surgery residencies and certain fellowships are becoming increasingly competitive. Several studies have identified important factors to be taken into account when selecting medical students for residency interviews. Similar information for selecting orthopaedic sports medicine fellows does not exist. Purpose: To determine the most important factors that orthopaedic sports medicine fellowship program directors (PDs) take into account when ranking applicants...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29164130/comparison-of-an-innovative-rehabilitation-combining-reduced-conventional-rehabilitation-with-balneotherapy-and-a-conventional-rehabilitation-after-anterior-cruciate-ligament-reconstruction-in-athletes
#8
Laetitia Peultier-Celli, Didier Mainard, Frank Wein, Nicolas Paris, Patrick Boisseau, Alexandre Ferry, René Gueguen, Isabelle Chary-Valckenaere, Jean Paysant, Philippe Perrin
Background: Instability of the knee, related to anterior cruciate ligament injury, is treated by surgical reconstruction. During recovery, a loss of proprioceptive input can have a significant impact. Few studies have evaluated the benefits of rehabilitation of the knee in aquatic environment on functional outcomes. Objective: This study aimed to compare an innovative rehabilitation protocol combining reduced conventional rehabilitation with aquatic rehabilitation, with a conventional rehabilitation, according to the National French Health Authority, in terms of kinetics, development of proprioceptive skills, and functional improvement of the knee...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/29163995/delayed-tibial-osteomyelitis-after-anterior-cruciate-ligament-reconstruction-with-hamstrings-autograft-and-bioabsorbable-interference-screw-a-case-report-and-review-of-the-literature
#9
Kevin S Weiss, Justin M Weatherall, Jen Eick, James R Ross
Osteomyelitis following arthroscopically assisted anterior cruciate ligament (ACL) reconstruction has rarely been reported in the literature. We report a case of a 20-year-old female who had delayed tibial osteomyelitis and a pretibial cyst with culture-positive, oxacillin sensitive Staphylococcus epidermidis 15 months after an ACL reconstruction with hamstring autograft. Soft tissue fixation within the tibial tunnel was with a poly-L-D-lactic acid (PLDLA) bioabsorbable interference screw. The patient underwent surgical treatment with curettage, debridement, hardware removal, and bone grafting of the tibial tunnel followed by a course of intravenous antibiotics...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29163951/coronary-artery-anomalies-unusually-high-incidence-of-anomalies-with-a-malignant-course-in-an-asian-population
#10
Abdulaziz M Alkhulaifi, Nidheesh Chooriyil, Maryam Alkuwari, Abdelnasser N Ghareep, Cornelia Carr
Objectives: Coronary artery anomalies are uncommon, but important cardiac malformations, representing the second commonest cause of death in young athletes. Methods: We utilized computerized tomographic angiography to screen and precisely delineate coronary artery anomalies in patients with minimal cardiac symptoms. Results: During 3.5-year period, we performed 2888 computerized tomographic angiographies. A total of 33 (1.1%; 95% confidence interval = 0...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/29163326/systematic-review-of-traumatic-brain-injuries-in-baseball-and-softball-a-framework-for-prevention
#11
Michael D Cusimano, Alice Zhu
Background: Traumatic brain injuries (TBIs) are an important public health challenge. The classification of baseball and softball as low contact sports and their association with extremity injuries cause individuals to overlook the risk of TBI in baseball and softball. Purpose: To summarize our knowledge of the epidemiology and risk factors of TBIs associated with baseball and softball with an aim to better design and implement preventive strategies. Methods: A search algorithm containing keywords that were synonymous to the terms "TBI," "baseball" was applied to the following nine databases: MEDLINE, Scopus, PubMed, EMBASE, CINAHL, Healthstar, PsychINFO, AMED, Cochrane library...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29163232/considerations-on-the-assessment-and-use-of-cycling-performance-metrics-and-their-integration-in-the-athlete-s-biological-passport
#12
Paolo Menaspà, Chris R Abbiss
Over the past few decades the possibility to capture real-time data from road cyclists has drastically improved. Given the increasing pressure for improved transparency and openness, there has been an increase in publication of cyclists' physiological and performance data. Recently, it has been suggested that the use of such performance biometrics may be used to strengthen the sensitivity and applicability of the Athlete Biological Passport (ABP) and aid in the fight against doping. This is an interesting concept which has merit, although there are several important factors that need to be considered...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29163219/neuromuscular-training-improves-lower-extremity-biomechanics-associated-with-knee-injury-during-landing-in-11-13-year-old-female-netball-athletes-a-randomized-control-study
#13
Amanda J Hopper, Erin E Haff, Christopher Joyce, Rhodri S Lloyd, G Gregory Haff
The purpose of this study was to examine the effects of a neuromuscular training (NMT) program on lower-extremity biomechanics in youth female netball athletes. The hypothesis was that significant improvements would be found in landing biomechanics of the lower-extremities, commonly associated with anterior cruciate ligament (ACL) injury, following NMT. Twenty-three athletes (age = 12.2 ± 0.9 years; height = 1.63 ± 0.08 m; mass = 51.8 ± 8.5 kg) completed two testing sessions separated by 7-weeks and were randomly assigned to either a experimental or control group...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29163210/a-wearable-test-for-maximum-aerobic-power-real-time-analysis-of-a-60-m-sprint-performance-and-heart-rate-off-kinetics
#14
Jorge L Storniolo, Gaspare Pavei, Alberto E Minetti
Maximum aerobic power ([Formula: see text]) as an indicator of body fitness is today a very well-known concept not just for athletes but also for the layman. Unfortunately, the accurate measurement of that variable has remained a complex and exhaustive laboratory procedure, which makes it inaccessible to many active people. In this paper we propose a quick estimate of it, mainly based on the heart rate off-kinetics immediately after an all-out 60-m sprint run. The design of this test took into account the recent availability of wrist wearable, heart band free, multi-sensor smart devices, which could also inertially detect the different phases of the sprint and check the distance run...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29163196/an-inertial-sensor-based-method-for-estimating-the-athlete-s-relative-joint-center-positions-and-center-of-mass-kinematics-in-alpine-ski-racing
#15
Benedikt Fasel, Jörg Spörri, Pascal Schütz, Silvio Lorenzetti, Kamiar Aminian
For the purpose of gaining a deeper understanding of the relationship between external training load and health in competitive alpine skiing, an accurate and precise estimation of the athlete's kinematics is an essential methodological prerequisite. This study proposes an inertial sensor-based method to estimate the athlete's relative joint center positions and center of mass (CoM) kinematics in alpine skiing. Eleven inertial sensors were fixed to the lower and upper limbs, trunk, and head. The relative positions of the ankle, knee, hip, shoulder, elbow, and wrist joint centers, as well as the athlete's CoM kinematics were validated against a marker-based optoelectronic motion capture system during indoor carpet skiing...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29163107/the-complexity-of-h-wave-amplitude-fluctuations-and-their-bilateral-cross-covariance-are-modified-according-to-the-previous-fitness-history-of-young-subjects-under-track-training
#16
Maria E Ceballos-Villegas, Juan J Saldaña Mena, Ana L Gutierrez Lozano, Francisco J Sepúlveda-Cañamar, Nayeli Huidobro, Elias Manjarrez, Joel Lomeli
The Hoffmann reflex (H-wave) is produced by alpha-motoneuron activation in the spinal cord. A feature of this electromyography response is that it exhibits fluctuations in amplitude even during repetitive stimulation with the same intensity of current. We herein explore the hypothesis that physical training induces plastic changes in the motor system. Such changes are evaluated with the fractal dimension (FD) analysis of the H-wave amplitude-fluctuations (H-wave FD) and the cross-covariance (CCV) between the bilateral H-wave amplitudes...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29163016/session-rpe-method-for-training-load-monitoring-validity-ecological-usefulness-and-influencing-factors
#17
REVIEW
Monoem Haddad, Georgios Stylianides, Leo Djaoui, Alexandre Dellal, Karim Chamari
Purpose: The aim of this review is to (1) retrieve all data validating the Session-rating of perceived exertion (RPE)-method using various criteria, (2) highlight the rationale of this method and its ecological usefulness, and (3) describe factors that can alter RPE and users of this method should take into consideration. Method: Search engines such as SPORTDiscus, PubMed, and Google Scholar databases in the English language between 2001 and 2016 were consulted for the validity and usefulness of the session-RPE method...
2017: Frontiers in Neuroscience
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
#18
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/29162658/hand-and-wrist-injuries-among-us-high-school-athletes-2005-06-2015-16
#19
Bernadette K Johnson, Lina Brou, Sarah K Fields, Alexandria N Erkenbeck, R Dawn Comstock
BACKGROUND: The risk of hand/wrist injuries is present across various sports. Little is known about the epidemiology of such injuries. The objective of this study was to calculate the rates of hand/wrist injuries and investigate injury patterns among high school athletes. METHODS: Athlete exposure (AE) and hand/wrist injury data were collected during 11 academic years, 2005/06 through 2015/16, from a large sample of US high schools as part of the National High School Sports-Related Injury Surveillance Study...
November 21, 2017: Pediatrics
https://www.readbyqxmd.com/read/29162621/needle-use-declarations-at-the-olympic-games-rio-2016
#20
Molly Allen, Mark Campbell Stuart, Hannah Gribble, Richard Budgett, Andrew Pipe
AIM: We report on the results of the 'IOC Needle Policy' applied during the course of the Games of the XXXI Summer Olympiad in Rio de Janeiro, Brazil. The policy was intended to empower physicians to ensure appropriate clinical use of needles within team medical environments, enhance the safety of those responsible for housekeeping services and others in the Olympic environment, and permit documentation of such procedures as an adjunct to the doping control programme. Any needle use required the submission of an 'Injection Declaration Form' to IOC medical officials...
November 21, 2017: British Journal of Sports Medicine
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