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https://www.readbyqxmd.com/read/29395632/predictors-of-clinical-success-in-runners-with-patellofemoral-pain-secondary-analyses-of-a-randomized-clinical-trial
#1
Jean-Francois Esculier, Laurent J Bouyer, Blaise Dubois, Jean Leblond, Mélanie Brisson, Luc Chau, Jean-Sébastien Roy
OBJECTIVES: To identify predictors of outcome to a rehabilitation program focused on education and management of training loads in runners with patellofemoral pain (PFP). DESIGN: Secondary analyses of a randomized clinical trial. METHODS: Fifty-eight runners with PFP (62% female, aged 31.2±6.6years, running 20.3±5.6km/week) were included in analyses. Following baseline collection of demographics, anthropometry, symptomatology, isometric strength, running mechanics and radiological data, runners were randomized to one of the three 8-week intervention program: (1) Education on symptoms management and training modifications; (2) Education+Exercise program; (3) Education+Gait retraining...
January 27, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29380429/the-strength-of-weight-bearing-bones-is-similar-in-amenorrheic-and-eumenorrheic-elite-long-distance-runners
#2
J Piasecki, A Ireland, M Piasecki, J Cameron, J S McPhee, H Degens
BACKGROUND: Regular intense endurance exercise can lead to amenorrhea with possible adverse consequences for bone health. OBJECTIVE: We compared whole-body and regional bone strength and skeletal muscle characteristics between amenorrheic (AA: n=14) and eumenorrheic (EA: n=15) elite adult female long distance runners and non-athletic controls (C: n=15). STUDY DESIGN AND PARTICIPANTS: Participants completed three-day food diaries, dual energy x-ray absorptiometry (DXA), magnetic resonance imaging (MRI), peripheral quantitative computed tomography (pQCT) and isometric maximal voluntary knee extension contraction (MVC)...
January 30, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29361639/outcome-of-low-invasive-local-split-thickness-lengthening-for-iliotibial-band-friction-syndrome
#3
Hiroaki Inoue, Kunio Hara, Yuji Arai, Shuji Nakagawa, Hiroyuki Kan, Manabu Hino, Hiroyoshi Fujiwara, Toshikazu Kubo
Conventional surgical methods for iliotibial band friction syndrome (ITBFS) may affect the iliotibial band (ITB), delaying return to sports activities or impeding performance. We have developed a minimally invasive method. This study retrospectively analyzed the outcomes of this procedure in individuals with ITBFS. This study included 34 knees of 31 individuals. Surgery involved lengthening the central part of the ITB by splitting it into a superficial and a deep layer, maintaining the anterior and posterior fibers immediately above the lateral epicondyle...
January 23, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29342072/decreased-osteoarthritis-risk-in-experienced-marathon-runners-commentary-on-an-article-by-danielle-y-ponzio-md-et-al-low-prevalence-of-hip-and-knee-arthritis-in-active-marathon-runners
#4
Lars Engebretsen
No abstract text is available yet for this article.
January 17, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29342063/low-prevalence-of-hip-and-knee-arthritis-in-active-marathon-runners
#5
Danielle Y Ponzio, Usman Ali M Syed, Kelly Purcell, Alexus M Cooper, Mitchell Maltenfort, Julie Shaner, Antonia F Chen
BACKGROUND: Existing evidence on whether marathon running contributes to hip and knee arthritis is inconclusive. Our aim was to describe hip and knee health in active marathon runners, including the prevalence of pain, arthritis, and arthroplasty, and associated risk factors. METHODS: A hip and knee health survey was distributed internationally to marathon runners. Active marathoners who completed ≥5 marathons and were currently running a minimum of 10 miles per week were included (n = 675)...
January 17, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29334675/effects-of-running-retraining-on-biomechanical-factors-associated-with-lower-limb-injury
#6
Marcus D Dunn, David B Claxton, Graham Fletcher, Jonathan S Wheat, David M Binney
Injury risk is an important concern for runners; however, limited evidence exists regarding changes to injury risk following running style retraining. Biomechanical factors, such as absolute peak free moment, knee abduction impulse, peak foot eversion and foot eversion excursion, have been shown to predict lower limb injury. The aim of this study was to assess the effects of Pose running retraining on biomechanical factors associated with lower limb running injury. Twenty uninjured recreational runners were pair-matched based on their five km run time performance and randomly assigned to control (n = 10) and intervention (three 2-h Pose running retraining sessions) groups (n = 10)...
January 12, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29326905/neuromuscular-features-in-sprinters-with-cerebral-palsy-case-studies-based-on-paralympic-classification
#7
Diego Antunes, Mateus Rossato, Rafael Lima Kons, Raphael Luiz Sakugawa, Gabriela Fischer
Despite the evolution of runner performance in athletes with cerebral palsy (CP), little is known about neuromuscular parameters of sprinters from different classes, especially related to power output, muscular imbalances and asymmetry indexes in lower limbs. The aim of this study was to assess muscle power, muscular imbalance and asymmetry in sprinters with CP. Four male sprinters with CP (age, 18 to 27 years; body mass, 58.5 to 72.8 kg; height, 161.5 to 174 cm) classified as T38, T37, T36, T35 according to International Paralympic Committee functional classification, performed vertical counter movement jump and squat jump on force plate and isokinetic torque evaluations in both limbs...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29324820/incidence-and-prevalence-of-patellofemoral-pain-a-systematic-review-and-meta-analysis
#8
REVIEW
Benjamin E Smith, James Selfe, Damian Thacker, Paul Hendrick, Marcus Bateman, Fiona Moffatt, Michael Skovdal Rathleff, Toby O Smith, Pip Logan
BACKGROUND: Patellofemoral pain is considered one of the most common forms of knee pain, affecting adults, adolescents, and physically active populations. Inconsistencies in reported incidence and prevalence exist and in relation to the allocation of healthcare and research funding, there is a clear need to accurately understand the epidemiology of patellofemoral pain. METHODS: An electronic database search was conducted, as well as grey literature databases, from inception to June 2017...
2018: PloS One
https://www.readbyqxmd.com/read/29320436/the-feasibility-and-usability-of-runningcoach-a-remote-coaching-system-for-long-distance-runners
#9
Daniel Aranki, Gao Xian Peh, Gregorij Kurillo, Ruzena Bajcsy
Studies have shown that about half of the injuries sustained during long-distance running involve the knee. Cadence (steps per minute) has been identified as a factor that is strongly associated with these running-related injuries, making it a worthwhile candidate for further study. As such, it is critical for long-distance runners to minimize their risk of injury by running at an appropriate running cadence. In this paper, we present the results of a study on the feasibility and usability of RunningCoach, a mobile health (mHealth) system that remotely monitors running cadence levels of runners in a continuous fashion, among other variables, and provides immediate feedback to runners in an effort to help them optimize their running cadence...
January 10, 2018: Sensors
https://www.readbyqxmd.com/read/29304509/effect-of-foot-progression-angle-adjustment-on-the-knee-adduction-moment-and-knee-joint-contact-force-in-runners-with-and-without-knee-osteoarthritis
#10
I C D Fong, W S C Li, W K J Tai, T W R Tsang, J H Zhang, T L W Chen, H Baur, P Eichelberger, R T H Cheung
BACKGROUND: Knee adduction moment (KAM) is often used as a surrogate marker of knee contact force (KCF) during walking. Previous studies have reported potential benefits to reduce KAM in patients with knee osteoarthritis (OA) by foot progression angle adjustment. However, KAM is an external moment and it does not consider any muscle contribution to the joint loading, which should pose a greater influence in running than walking. RESEARCH QUESTION: This study used a computational model to compare KAM and KCF between runners with and without knee OA during running...
December 30, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29289028/experience-does-not-influence-injury-related-joint-kinematics-and-kinetics-in-distance-runners
#11
Cristine E Agresta, Jillian Peacock, Jeffrey Housner, Ronald F Zernicke, Jessica Deneweth Zendler
PURPOSE: Increased running experience and more time spent running appears to be advantageous in reducing injury risk, although the reason behind this is unclear. It is plausible that more experience results in better running mechanics leading to less injuries. Running mechanics are often screened during clinical assessments and targeted for correction in gait retraining, particularly those thought to be global indicators of injury or those associated with elevated knee joint loading. Examining the biomechanics of runners who are less-injury prone can improve our understanding of the significance of faulty running mechanics in relation to injury...
December 20, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29236137/-knee-pain-in-a-female-marathon-runner
#12
B Jobke
No abstract text is available yet for this article.
December 13, 2017: Der Radiologe
https://www.readbyqxmd.com/read/29209417/do-athletes-alter-their-running-mechanics-after-an-achilles-tendon-rupture
#13
Daniel Jandacka, Julia Freedman Silvernail, Jaroslav Uchytil, David Zahradnik, Roman Farana, Joseph Hamill
Background: Over the past thirty years, there has been dramatic increase in incidence of Achilles tendon rupture in the athletic population. The purpose of this study was to compare the lower extremity mechanics of Achilles tendon ruptured runners with healthy controls. Methods: The participants with a past history of an Achilles tendon repair (n = 11) and healthy control (n = 11) subgroups were matched on sex, age, type of regular physical activity, mass, height, footfall pattern and lateral dominancy...
2017: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/29172394/subchondral-insufficiency-fracture-in-the-lateral-compartment-of-the-knee-in-a-64-year-old-marathon-runner
#14
Vincent Vg An, Mathias van den Broek, Sam Oussedik
A 64-year-old marathon runner presented to our clinic with a history of worsening pain in her left knee. Following magnetic resonance imaging, the diagnosis of subchondral insufficiency fracture of the knee (SIFK) was made. A course of conservative management via bisphosphonates was initiated. The patient successfully recovered and returned to full athletic function, having recently returned to competitive marathon running. This article aims to present this unusual case of lateral compartment SIFK and summarise the literature on this uncommon condition...
December 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29164109/identification-of-directed-interactions-in-kinematic-data-during-running
#15
Giovana Y Nakashima, Theresa H Nakagawa, Ana F Dos Santos, Fábio V Serrão, Michel Bessani, Carlos D Maciel
The knowledge of motion dynamics during running activity is crucial to enhance the development of rehabilitation techniques and injury prevention programs. Recent studies investigated the interaction between joints, using several analysis techniques, as cross-correlation, sensitivity analysis, among others. However, the direction of the joints pairing is still not understood. This paper proposes a study of the influence direction pattern in healthy runners by using kinematic data together with partial directed coherence, a frequency approach of Granger causality...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/29126956/effect-of-graduated-compression-stockings-on-venous-lower-limb-hemodynamics-in-healthy-amateur-runners
#16
Oswaldo Teno Castilho Junior, Nei Rodrigues Alves Dezotti, Marcelo Bellini Dalio, Edwaldo Edner Joviliano, Carlos Eli Piccinato
OBJECTIVE: The objective of this study was to analyze the effect of graduated compression stockings (GCS) on venous lower limb hemodynamics in healthy amateur runners. METHODS: Ten runners were evaluated during rest and after a 10-km run without and with knee-high GCS of 20 to 30 mm Hg. Air plethysmography evaluated venous filling index (VFI), ejection fraction, and residual volume fraction (RVF) in both limbs. Capillary lactate level and heart rate were also measured...
November 7, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29100250/gait-retraining-from-rearfoot-strike-to-forefoot-strike-does-not-change-running-economy
#17
Jenevieve Lynn Roper, Deborah Doerfler, Len Kravitz, Janet S Dufek, Christine Mermier
Gait retraining is a method for management of patellofemoral pain, which is a common ailment among recreational runners. The present study investigated the effects of gait retraining from rearfoot strike to forefoot strike on running economy, heart rate, and respiratory exchange ratio immediately post-retraining and one-month post-retraining in recreational runners with patellofemoral pain. Knee pain was also measured. Sixteen participants (n=16) were randomly placed in the control (n=8) or experimental (n=8) group...
November 3, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29077639/short-trail-running-race-beyond-the-classic-model-for-endurance-running-performance
#18
Sabine Ehrström, Marcus P Tartaruga, Christopher S Easthope, Jeanick Brisswalter, Jean-Benoit Morin, Fabrice Vercruyssen
PURPOSE: To examine the extent to which the classical physiological variables of endurance running performance [VO2max, %VO2max at ventilatory threshold (VT), and running economy (RE)], but also muscle strength factors contribute to short trail running (TR) performance. METHODS: A homogeneous group of nine highly-trained trail runners performed an official TR race (27-km) and laboratory-based sessions to determine VO2max, %VO2max at VT, level RE (RE0%) and RE on a +10% slope (RE+10%), voluntary concentric and eccentric knee extension torques (MVCCon and MVCEcc, respectively), local endurance assessed by a fatigue index (FI) and a time to exhaustion at 87...
October 26, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29077638/gait-kinematics-in-individuals-with-acute-and-chronic-patellofemoral-pain
#19
Aaron Fox, Reed Ferber, Natalie Saunders, Sean Osis, Jason Bonacci
PURPOSE: This study aimed to identify the discriminating kinematic gait characteristics between individuals with acute and chronic patellofemoral pain (PFP), and healthy controls. METHODS: Ninety-eight runners with PFP (39 male, 59 female) and 98 healthy control runners (38 male, 60 female) ran on a treadmill at a self-selected speed while three-dimensional lower limb kinematic data were collected. Runners with PFP were split into acute (n = 25) and chronic (n = 73) sub-groups based on whether they had been experiencing pain for less or greater than three months, respectively...
October 26, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29062393/running-injuries-in-the-participants-of-ljubljana-marathon
#20
Luka Vitez, Petra Zupet, Vesna Zadnik, Matej Drobnič
INTRODUCTION: The aim of our study was to determine the self-reported incidence and prevalence of running-related injuries among participants of the 18(th) Ljubljana Marathon, and to identify risk factors for their occurrence. METHODS: A customized questionnaire was distributed over registration. Independent samples of t-test and chi-square test were used to calculate the differences in risk factors occurrence in the injured and non-injured group. Factors which appeared significantly more frequently in the injured group were included further into multiple logistic regression analysis...
October 2017: Zdravstveno Varstvo
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