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https://www.readbyqxmd.com/read/29673341/runners-with-patellofemoral-pain-demonstrate-sub-groups-of-pelvic-acceleration-profiles-using-hierarchical-cluster-analysis-an-exploratory-cross-sectional-study
#1
Ricky Watari, Sean T Osis, Angkoon Phinyomark, Reed Ferber
BACKGROUND: Previous studies have suggested that distinct and homogenous sub-groups of gait patterns exist among runners with patellofemoral pain (PFP), based on gait analysis. However, acquisition of 3D kinematic data using optical systems is time consuming and prone to marker placement errors. In contrast, axial segment acceleration data can represent an overall running pattern, being easy to acquire and not influenced by marker placement error. Therefore, the purpose of this study was to determine if pelvic acceleration patterns during running could be used to classify PFP patients into homogeneous sub-groups...
April 19, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29650603/top-studies-relevant-to-primary-care-practice
#2
REVIEW
Danielle Perry, Michael R Kolber, Christina Korownyk, Adrienne J Lindblad, Jamil Ramji, Joey Ton, G Michael Allan
OBJECTIVE: To summarize 10 high-quality studies from 2017 that have strong relevance to primary care practice. QUALITY OF EVIDENCE: Study selection involved routine literature surveillance by a group of primary care health professionals. This included screening abstracts of important journals and Evidence Alerts, as well as searching the American College of Physicians Journal Club. MAIN MESSAGE: Topics of the 2017 articles include whether treating subclinical hypothyroidism improves outcomes or symptoms; whether evolocumab reduces cardiovascular disease as well as low-density lipoprotein levels; whether lifestyle interventions reduce medication use in patients with diabetes; whether vitamin D prevents cardiovascular disease, cancer, or upper respiratory tract infections; whether canagliflozin reduces clinical events in patients with diabetes; how corticosteroid injections affect knee osteoarthritis; whether drained abscesses benefit from antibiotic treatment; whether patients with diabetes benefit from bariatric surgery; whether exenatide reduces clinical events in patients with diabetes; and whether tympanostomy tubes affect outcomes in recurrent acute otitis media or chronic otitis media...
April 2018: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/29623042/estimation-of-vertical-ground-reaction-forces-and-sagittal-knee-kinematics-during-running-using-three-inertial-sensors
#3
Frank J Wouda, Matteo Giuberti, Giovanni Bellusci, Erik Maartens, Jasper Reenalda, Bert-Jan F van Beijnum, Peter H Veltink
Analysis of running mechanics has traditionally been limited to a gait laboratory using either force plates or an instrumented treadmill in combination with a full-body optical motion capture system. With the introduction of inertial motion capture systems, it becomes possible to measure kinematics in any environment. However, kinetic information could not be provided with such technology. Furthermore, numerous body-worn sensors are required for a full-body motion analysis. The aim of this study is to examine the validity of a method to estimate sagittal knee joint angles and vertical ground reaction forces during running using an ambulatory minimal body-worn sensor setup...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29601217/the-effect-of-patellar-taping-on-lower-extremity-running-kinematics-in-individuals-with-patellofemoral-pain-syndrome
#4
Ariel Pelletier, Paolo Sanzo, Derek Kivi, Carlos Zerpa
PURPOSE: To investigate the effects of patellar taping (Leukotape® (LT), Pinetown, South Africa, Kinesio Tape (KT), Dortmund, Germany, or no tape) on lower extremity kinematics in runners with and without patellofemoral pain syndrome (PFPS). METHODS: In total, 20 healthy individuals and 12 with PFPS ran on a treadmill under different taping conditions and lower extremity kinematics and stride characteristics were obtained using Peak Motus Software, Colorado, USA...
March 30, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29547032/characteristics-of-plantar-pressures-and-related-pain-profiles-in-elite-sprinters-and-recreational-runners
#5
Tong-Hsien Chow, Yih-Shyuan Chen, Jia-Chang Wang
BACKGROUND: Plantar pressure measurement is effective for assessing plantar loading and can be applied to evaluating foot performance. We sought to explore the characteristics of plantar pressures in elite sprinters and recreational runners during static standing and walking. METHODS: Arch index (AI) values, regional plantar pressure distributions (PPDs), and footprint characteristics were examined in 80 elite sprinters and 90 recreational runners using an optical plantar pressure measurement system...
January 2018: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/29533474/evolution-of-hindlimb-bone-dimensions-and-muscle-masses-in-house-mice-selectively-bred-for-high-voluntary-wheel-running-behavior
#6
Alberto A Castro, Theodore Garland
We have used selective breeding with house mice to study coadaptation of morphology and physiology with the evolution of high daily levels of voluntary exercise. Here, we compared hindlimb bones and muscle masses from the 11th generation of four replicate High Runner (HR) lines of house mice bred for high levels of voluntary wheel running with four non-selected control (C) lines. Mass, length, diameter, and depth of the femur, tibia-fibula, and metatarsal bones, as well as masses of gastrocnemius and quadriceps muscles, were compared by analysis of covariance with body mass or body length as the covariate...
March 13, 2018: Journal of Morphology
https://www.readbyqxmd.com/read/29529927/textured-insoles-reduce-vertical-loading-rate-and-increase-subjective-plantar-sensation-in-overground-running
#7
Michael Wilkinson, Alistair Ewen, Nicholas Caplan, David O'Leary, Neil Smith, Richard Stoneham, Lee Saxby
The effect of textured insoles on kinetics and kinematics of overground running was assessed. 16 male injury-free-recreational runners attended a single visit (age 23 ± 5 yrs; stature 1.78 ± 0.06 m; mass 72.6 ± 9.2 kg). Overground 15-m runs were completed in flat, canvas plimsolls both with and without textured insoles at self-selected velocity on an indoor track in an order that was balanced among participants. Average vertical loading rate and peak vertical force (Fpeak ) were captured by force platforms...
March 12, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29490592/women-show-similar-central-and-peripheral-fatigue-to-men-after-half-marathon
#8
Gennaro Boccia, Davide Dardanello, Cantor Tarperi, Luca Festa, Antonio La Torre, Barbara Pellegrini, Federico Schena, Alberto Rainoldi
Women are known to be less fatigable than men in single-joint exercises, but fatigue induced by running has not been well understood. Here we investigated sex differences in central and peripheral fatigue and in rate of force development (RFD) in the knee extensors after a half-marathon run. Ten male and eight female amateur runners (aged 25-50 years) were evaluated before and immediately after a half-marathon race. Knee extensors forces were obtained under voluntary and electrically evoked isometric contractions...
March 1, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29485362/runners-with-patellofemoral-pain-exhibit-greater-peak-patella-cartilage-stress-compared-to-pain-free-runners
#9
Tzu-Chieh Liao, Joyce H Keyak, Christopher M Powers
The purpose of this study is to determine whether recreational runners with patellofemoral pain (PFP) exhibit greater peak patella cartilage stress compared to pain-free runners. A secondary purpose was to determine the kinematic and/or kinetic predictors of peak patella cartilage stress during running. Twenty-two female recreational runners participated (12 with PFP and 10 pain-free controls). Patella cartilage stress profiles were quantified using subject-specific finite element models simulating the maximum knee flexion angle during stance phase of running...
February 27, 2018: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29472010/a-little-bit-faster-lower-extremity-joint-kinematics-and-kinetics-as-recreational-runners-achieve-faster-speeds
#10
Michael S Orendurff, Toshiki Kobayashi, Kirsten Tulchin-Francis, Ann Marie Herring Tullock, Chris Villarosa, Charles Chan, Siobhan Strike
There appears a linear relationship between small increases in running speed and cardiovascular health benefits. Encouraging or coaching recreational runners to increase their running speed to derive these health benefits might be more effective if their joint level kinematic and kinetic strategy was understood. The aim of this investigation was to compare the peak sagittal plane motions, moments, and powers of the hip, knee and ankle at 85%, 100%, 115% and 130% of self-selected running speed. Overground running data were collected in 12 recreational runners (6 women, 6 men) with a full body marker set using a 12-camera Vicon MX system with an AMTI force plate...
February 10, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29395632/predictors-of-clinical-success-in-runners-with-patellofemoral-pain-secondary-analyses-of-a-randomized-clinical-trial
#11
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
#12
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
#13
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...
February 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
#14
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
#15
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
#16
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)...
April 2018: Human Movement Science
https://www.readbyqxmd.com/read/29326905/neuromuscular-features-in-sprinters-with-cerebral-palsy-case-studies-based-on-paralympic-classification
#17
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
#18
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
#19
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
#20
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...
March 2018: Gait & Posture
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