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https://www.readbyqxmd.com/read/28544949/the-influence-of-shoe-aging-on-children-running-biomechanics
#1
Alexis Herbaut, Pascale Chavet, Maxime Roux, Nils Guéguen, Franck Barbier, Emilie Simoneau-Buessinger
Athletic children are prone to overuse injuries, especially at the heel and knee. Since footwear is an extrinsic factor of lower limb injury risk, the aim of this study was to assess the influence of shoe aging on children running biomechanics. Fourteen children active in sports participated in a laboratory biomechanical evaluation. A new pair of shoes was provided to each participant at an inclusion visit. Four months later, the participants performed a running task and their kinematics and kinetics were assessed both with their used shoes and with a new pair of shoes identical to the first...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28538308/effect-of-electrical-myostimulation-on-the-function-of-lower-leg-muscles
#2
Viktoras Silinskas, Albinas GrŪnovas, Jurate Stanislovaitiene, Alfonsas Buliuolis, Eugenijus Trinkunas, Jonas Poderys
Silinskas, V, Grūnovas, A, Stanislovaitiene, J, Buliuolis, A, Trinkunas, E, and Poderys, J. Effect of electrical myostimulation on the function of lower leg muscles. J Strength Cond Res 31(6): 1577-1584, 2017-Electrical myostimulation (EMS) method is applied to improve skeletal muscle function. The aim of this study was to evaluate the efficacy of EMS applied to the sole and calf muscles on their strength and on maximal sprint performance. Each of 10 training sessions involved 10 seconds of stimulation and 50 seconds of rest for a total of 10 minutes...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28514214/imaging-of-acute-capsuloligamentous-sports-injuries-in-the-ankle-and-foot-sports-imaging-series
#3
James M Linklater, Catherine L Hayter, Dzung Vu
The ankle and foot are commonly injured during sporting activities. Clinical diagnosis can at times be challenging, due to the complex anatomy and multiple sites of potential injury. In the athlete, there is a reduced threshold for imaging to clarify diagnosis, guide prognosis, and treatment. Diagnostic imaging is also helpful in evaluating ongoing symptoms in the subacute or chronic setting. (©) RSNA, 2017.
June 2017: Radiology
https://www.readbyqxmd.com/read/28503415/kickboxing-power-hour-case-report-of-fifth-metatarsal-apophysitis-iselin-disease-and-its-magnetic-resonance-imaging-features
#4
Nishant Gupta, Komal Sharma, Itisha Bansal, Yogesh Kumar, Daichi Hayashi
Youth now-a-days are getting more involved in mixed martial arts, with increasing number of cases of lateral foot pain due to various causes. The differential diagnoses of lateral foot pain in the pediatric population include avulsion fracture of the fifth metatarsal base, Jones fracture, diaphyseal stress fracture as well as os vesalianum pedis. We present a case of a 15-year-old athletic boy who presented with left lateral foot pain for a few weeks. The patient was actively involved in Kickboxing as well as active running...
April 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28484850/return-to-sporting-activity-after-osteochondral-autograft-transplantation-for-freiberg-disease-in-young-athletes
#5
Tetsuro Ishimatsu, Ichiro Yoshimura, Kazuki Kanazawa, Tomonobu Hagio, Takuaki Yamamoto
INTRODUCTION: Freiberg disease is defined as osteochondrosis of the metatarsal head and typically occurs in adolescents with sporting activity. This study aimed to evaluate the sporting activity of young athletes after osteochondral autograft transplantation (OAT) for Freiberg disease. MATERIALS AND METHODS: OAT for Freiberg disease was conducted in 12 consecutive patients between August 2008 and November 2014. The present study evaluated 10 of these patients who both undertook sporting activity preoperatively and were teenagers at the time of surgery...
May 8, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28465660/the-effect-of-body-mass-on-the-shoe-athlete-interaction
#6
A Tsouknidas, M Pantazopoulos, D Sagris, D Fasnakis, S Maropoulos, F Arabatzi, N Michailidis
Long-distance running is known to induce joint overloading and elevate cytokine levels, which are the hallmarks for a variety of running-related injuries. To address this, footwear systems incorporate cushioning midsoles to mitigate injurious mechanical loading. The aim of this study was to evaluate the effect of athlete body mass on the cushioning capacity of technical footwear. An artificial heel was prototyped to fit the impact pattern of a heel-strike runner and used to measure shock attenuation by an automated drop test...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28419804/simultaneous-reconstruction-of-the-medial-and-lateral-collateral-ligaments-for-chronic-combined-ligament-injuries-of-the-ankle
#7
Toshito Yasuda, Hiroaki Shima, Katsunori Mori, Seiya Tsujinaka, Masashi Neo
BACKGROUND: Objective data on chronic injuries of the medial collateral ligament (MCL) of the ankle are scarce. Chronic MCL injuries are frequently associated with lateral collateral ligament (LCL) injuries. For patients with chronic combined MCL and LCL injuries, the authors have performed simultaneous surgery of the 2 ligaments. HYPOTHESIS: Simultaneous surgery of the 2 ligaments may be effectively used to treat chronic combined MCL and LCL injuries. STUDY DESIGN: Case series; Level of evidence, 4...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28391495/boric-acid-inhibition-of-trichophyton-rubrum-growth-and-conidia-formation
#8
Martin Schmidt
Trichophyton rubrum is a common human dermatophyte that is the causative agent of 80-93% of fungal infections of the skin and nails. While dermatophyte infections in healthy people are easily treatable with over-the-counter medications, such infections pose a higher risk for patients with compromised immune function and impaired regenerative potential. The efficacy of boric acid (BA) for the treatment of vaginal yeast infections prompted an investigation of the effect of BA on growth and morphology of T. rubrum...
April 8, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28382374/proximal-peroneus-longus-tear-rare-case-in-a-teenage-athlete-and-review-of-the-literature
#9
Matthew Winfeld, Nancy Chauvin
We present the case of a 15-year-old teenager who sustained an ankle inversion injury while playing American football, which yielded only minimal pain, but also foot numbness and a lateral leg bulge. Magnetic resonance imaging evaluation revealed a proximal peroneal tear. These rare injuries are often associated with compartment syndrome, a surgical emergency, which was ultimately excluded clinically in this patient. Relevant anatomy, mechanism of injury, and clinical manifestations are discussed.
July 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28381497/swainsonine-biosynthesis-genes-in-diverse-symbiotic-and-pathogenic-fungi
#10
Daniel Cook, Bruno G G Donzelli, Rebecca Creamer, Deana L Baucom, Dale R Gardner, Juan Pan, Neil Moore, Jerzy W Jaromczyk, Christopher L Schardl
Swainsonine, a cytotoxic fungal alkaloid and a potential cancer therapy drug, is produced by the insect pathogen and plant symbiont, Metarhizium robertsii, the clover pathogen Slafractonia leguminicola, locoweed symbionts belonging to Alternaria sect. Undifilum, and a recently discovered morning glory symbiont belonging to order Chaetothyriales. Genome sequence analyses revealed that these fungi shared orthologous gene clusters, designated "SWN," which included a multifunctional swnK gene comprising predicted adenylylation and acyltransferase domains with their associated thiolation domains, a β-ketoacyl synthase domain, and two reductase domains...
April 4, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28379097/examining-the-accuracy-of-visual-diagnosis-of-tinea-pedis-and-tinea-unguium-in-aged-care-facilities
#11
T Goto, G Nakagami, K Takehara, T Nakamura, M Kawashima, Y Tsunemi, H Sanada
OBJECTIVE: The aim of this study was to examine the accuracy of visual diagnosis of tinea pedis (Athlete's foot) and tinea unguium (fungal nail infection), as well as to provide information on skin abnormalities that could help identify these diseases in aged care facilities (long-term care facilities (LTCFs) and nursing homes). METHOD: A multicentre, cross-sectional observational study was conducted in a LTCF and two nursing homes. A dermatologist observed the skin abnormalities in the participants' interdigital and plantar areas, to screen for tinea pedis, and in the participants' toenails, to screen for tinea unguium...
April 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28350487/epidemiology-and-outcomes-of-lisfranc-injuries-identified-at-the-national-football-league-scouting-combine
#12
Kevin J McHale, Bryan G Vopat, Brendin R Beaulieu-Jones, George Sanchez, James M Whalen, Lucas S McDonald, Christopher W DiGiovanni, George H Theodore, Matthew T Provencher
BACKGROUND: Lisfranc injuries are challenging to treat and may have a detrimental effect on athletic performance. PURPOSE: (1) Determine the epidemiological characteristics of Lisfranc injuries at the annual National Football League (NFL) Scouting Combine, (2) define player positions at risk for these injuries, and (3) evaluate the impact that these injuries and radiographic findings have on NFL draft position and performance. STUDY DESIGN: Cohort study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28344462/effects-of-neuromuscular-training-on-the-rear-foot-angle-kinematics-in-elite-women-field-hockey-players-with-chronic-ankle-instability
#13
Eunkuk Kim, Hokyung Choi, Jung-Hoon Cha, Jong-Chul Park, Taegyu Kim
The aims of this study were to investigate the ankle position, the changes and persistence of ankle kinematics after neuromuscular training in athletes with chronic ankle instability (CAI). A total of 21 national women's field hockey players participated (CAI = 12, control = 9). Ankle position at heel strike (HS), midstance (MS), and toe touch (TT) in the frontal plane during walking, running and landing were measured using 3D motion analysis. A 6-week neuromuscular training program was undertaken by the CAI group...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28343329/stress-fractures-of-the-foot-and-ankle-part-2-site-specific-etiology-imaging-and-treatment-and-differential-diagnosis
#14
Jacob C Mandell, Bharti Khurana, Stacy E Smith
Stress fractures of the foot and ankle are a commonly encountered problem among athletes and individuals participating in a wide range of activities. This illustrated review, the second of two parts, discusses site-specific etiological factors, imaging appearances, treatment options, and differential considerations of stress fractures of the foot and ankle. The imaging and clinical management of stress fractures of the foot and ankle are highly dependent on the specific location of the fracture, mechanical forces acting upon the injured site, vascular supply of the injured bone, and the proportion of trabecular to cortical bone at the site of injury...
March 25, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28336150/effects-of-foot-rotation-positions-on-knee-valgus-during-single-leg-drop-landing-implications-for-acl-injury-risk-reduction
#15
P S P Teng, P W Kong, K F Leong
BACKGROUND: Non-contact anterior cruciate ligament (ACL) injuries commonly occur when athletes land in high risk positions such as knee valgus. The position of the foot at landing may influence the transmission of forces from the ankle to the knee. Using an experimental approach to manipulate foot rotation positions, this study aimed to provide new insights on how knee valgus during single-leg landing may be influenced by foot positions. METHODS: Eleven male recreational basketball players performed single-leg drop landings from a 30-cm high platform in three foot rotation positions (toe-in, toe-forward and toe-out) at initial contact...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28299934/antibacterial-composite-film-based-triboelectric-nanogenerator-for-harvesting-walking-energy
#16
Guang Qin Gu, Chang Bao Han, Jing Jing Tian, Cun Xin Lu, Chuan He, Tao Jiang, Zhou Li, Zhong Lin Wang
As a green and eco-friendly technology, triboelectric nanogenerator (TENG) can harvest energy from human motion to generate electricity, so TENGs have been widely applied in wearable electronic devices to replace traditional batteries. However, the surface of these TENGs is easily contaminated and breeds bacteria, which is a threat to human health. Here, we report an antibacterial composite film-based triboelectric nanogenerator (ACF-TENG) that uses Ag-exchanged zeolite (Ag-zeolite) and polypropylene (PP) composite film as the triboelectric layer...
March 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28298054/long-term-effects-of-adolescent-sport-concussion-across-the-age-spectrum
#17
Douglas N Martini, James T Eckner, Sean K Meehan, Steven P Broglio
BACKGROUND: Research in sport concussion has increased greatly over the previous decade due to increased scientific interest as well as the media and political spotlight that has been cast on this injury. However, a dearth of literature is available regarding the long-term (>1 year after concussion) effects of adolescent concussion on cognitive and motor performance of high school athletes. PURPOSE: To evaluate the potential for long-term effects of concussion sustained during high school on cognitive and motor performance across the lifespan...
May 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28257426/effects-of-different-medial-arch-support-heights-on-rearfoot-kinematics
#18
Gunnar Wahmkow, Michael Cassel, Frank Mayer, Heiner Baur
BACKGROUND: Foot orthoses are usually assumed to be effective by optimizing mechanically dynamic rearfoot configuration. However, the effect from a foot orthosis on kinematics that has been demonstrated scientifically has only been marginal. The aim of this study was to examine the effect of different heights in medial arch-supported foot orthoses on rear foot motion during gait. METHODS: Nineteen asymptomatic runners (36±11years, 180±5cm, 79±10kg; 41±22km/week) participated in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28253065/effects-of-taping-on-achilles-tendon-protection-and-kendo-performance
#19
Feng-Hua Tsai, I-Hua Chu, Chun-Hao Huang, Jing-Min Liang, Jia-Hroung Wu, Wen-Lan Wu
CONTEXT: It has been reported that there is high rate of Achilles tendon injury among kendo athletes. For protection and support the area, kendo athletes habitually use taping during practice or games. OBJECTIVE: To investigate the effect of various taping techniques on injury prevention and functional performance in kendo athletes. DESIGN: Case-control study. SETTING: Laboratory. PARTICIPANTS: Fifteen University Kendo Team athletes with at least 2 years kendo experience...
March 2, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28245273/influence-of-custom-made-and-prefabricated-insoles-before-and-after-an-intense-run
#20
Angel Gabriel Lucas-Cuevas, Andrés Camacho-García, Raúl Llinares, Jose Ignacio Priego Quesada, Salvador Llana-Belloch, Pedro Pérez-Soriano
Each time the foot contacts the ground during running there is a rapid deceleration that results in a shock wave that is transmitted from the foot to the head. The fatigue of the musculoskeletal system during running may decrease the ability of the body to absorb those shock waves and increase the risk of injury. Insoles are commonly prescribed to prevent injuries, and both custom-made and prefabricated insoles have been observed to reduce shock accelerations during running. However, no study to date has included a direct comparison of their behaviour measured over the same group of athletes, and therefore great controversy still exists regarding their effectiveness in reducing impact loading during running...
2017: PloS One
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