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https://www.readbyqxmd.com/read/29342022/association-between-altered-hip-extension-and-kinetic-gait-variables
#1
Elizabeth C Wonsetler, Ellie L Miller, Katherine L Huey, Sarah E Frye, Mark G Bowden
Kinematic and kinetic outcome measures are tightly linked in walking. Although altering motor output is a major goal of gait rehabilitation, little is understood regarding the relationship between altering a single kinematic variable and kinetic outcome changes. We designed a strategy to isolate hip extension alterations during walking on a treadmill to assess the change in kinetic outcomes. Ten healthy individuals walked on an instrumented split-belt treadmill with motion capture to calculate hip extension and kinetic outcomes at the following five different randomized cadences: self-selected cadence, self-selected ± 10%, and self-selected ± 20%...
February 2018: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/29340933/forces-generated-by-vastus-lateralis-and-vastus-medialis-decrease-with-increasing-stair-descent-speed
#2
Elena J Caruthers, Kassandra K Oxendale, Jacqueline M Lewis, Ajit M W Chaudhari, Laura C Schmitt, Thomas M Best, Robert A Siston
Stair descent (SD) is a common, difficult task for populations who are elderly or have orthopaedic pathologies. Joint torques of young, healthy populations during SD increase at the hip and ankle with increasing speed but not at the knee, contrasting torque patterns during gait. To better understand the sources of the knee torque pattern, we used dynamic simulations to estimate knee muscle forces and how they modulate center of mass (COM) acceleration across SD speeds (slow, self-selected, and fast) in young, healthy adults...
January 16, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29340633/kinking-of-an-open-stent-graft-after-total-arch-replacement-with-the-frozen-elephant-technique-for-acute-type-a-aortic-dissection
#3
Akimasa Morisaki, Tadashi Isomura, Yasuhisa Fukada, Minoru Yoshida
Recently, in Japan, the J Graft Open Stent Graft (JOSG) was commercialized for surgical repair of an aortic aneurysm and aortic dissection and the frozen elephant trunk technique was applied. Kinking of the JOSG is a rare adverse event that requires additional intervention. We experienced 2 patients who developed kinking of a JOSG after translocated total arch replacement with the frozen elephant trunk technique for acute Type A aortic dissection. Both patients had intermittent claudication with a decreased ankle-brachial pressure index after the operation...
January 10, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29339984/functional-vs-traditional-analysis-in-biomechanical-gait-data-an-alternative-statistical-approach
#4
Jihong Park, Matthew K Seeley, Devin Francom, C Shane Reese, J Ty Hopkins
In human motion studies, discrete points such as peak or average kinematic values are commonly selected to test hypotheses. The purpose of this study was to describe a functional data analysis and describe the advantages of using functional data analyses when compared with a traditional analysis of variance (ANOVA) approach. Nineteen healthy participants (age: 22 ± 2 yrs, body height: 1.7 ± 0.1 m, body mass: 73 ± 16 kg) walked under two different conditions: control and pain+effusion. Pain+effusion was induced by injection of sterile saline into the joint capsule and hypertonic saline into the infrapatellar fat pad...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29339846/ankle-arthrodesis-open-versus-arthroscopic-a-systematic-review-and-meta-analysis
#5
REVIEW
Mallikarjun Honnenahalli Chandrappa, Shahin Hajibandeh, Shahab Hajibandeh
Objectives: Our objective was to perform a systematic review of the literature and conduct a meta-analysis to investigate the outcomes of open versus arthroscopic methods of ankle fusion. Methods: In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement standards, we performed a systematic review. Electronic databases MEDLINE, EMBASE, CINAHL and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched to identify randomised and non-randomised studies comparing outcomes of arthroscopic and open ankle arthrodesis...
November 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/29339822/relationship-between-brachial-ankle-and-heart-femoral-pulse-wave-velocities-and-the-rapid-decline-of-kidney-function
#6
Sung Woo Lee, Seung Hyeok Han, Tae Hyun Yoo, Wookyung Chung, Sue K Park, Dong Wan Chae, Curie Ahn, Kook-Hwan Oh
The impact of brachial-ankle pulse wave velocity (baPWV) and heart-femoral pulse wave velocity (hfPWV) on rapid decline of estimated glomerular filtration rate (eGFR) has been inconclusive. The database of a multicenter prospective study of 2238 patients in Korea enrolled from 2011 to 2016 was reviewed. After excluding patients with missing baPWV (n = 257) and eGFR change (n = 180), the study included 1801 non-dialysis chronic kidney disease (CKD) patients. The eGFR change <-5ml/min/1.73 m2/year was defined as rapid decline...
January 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29339174/the-impact-of-strabismus-surgery-on-gait-pattern-in-patients-with-congenital-or-starting-within-one-year-of-age-strabismus
#7
Enrica Sipio, Anna Dickmann, Irene Aprile, Marco Germanotta, Chiara Simbolotti, Annabella Salerni, Gustavo Savino, Luca Padua
Strabismus is a common visual disorder that negatively affects walking and balance. Therapeutic interventions for strabismus include strabismus surgery. Few studies investigated the relationship between strabismus surgery and postural control while, to the best of our knowledge, none has been conducted to assess the influence of strabismus surgery on gait. Therefore, the aim of this study was to evaluate the locomotion characteristics over patients with congenital or starting within one year of age strabismus, one month and three months after strabismus surgery...
January 12, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29338333/endoscopic-transfer-of-flexor-hallucis-longus-tendon-for-chronic-achilles-tendon-rupture-technical-aspects-and-short-time-experiences
#8
Elisabeth Ellingsen Husebye, Marius Molund, Kjetil Harald Hvaal, Are Haukåen Stødle
BACKGROUND: Chronic Achilles tendon ruptures can lead to reduced power of plantar flexion in the ankle with impaired gait ability. The open 1- or 2-incision technique for flexor hallucis longus transfer has proven good functional outcome but has the disadvantage of relatively extensive surgery performed at a vulnerable location. To reduce the risk of soft tissue problems, the flexor hallucis longus transfer can be performed endoscopically. MATERIAL AND METHOD: An endoscopic technique for flexor hallucis longus transfer is presented together with the experiences from the first six patients operated with this method...
January 1, 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29338332/venous-thromboembolism-in-podiatric-foot-and-ankle-surgery
#9
Jemma H Matthews, Alexander J Terrill, Alex L Barwick, Paul A Butterworth
BACKGROUND: The extent to which podiatric surgeons follow venous thromboembolism guidelines is unknown. The aim of this study therefore, was 2-fold: (a) to determine the rate of venous thromboembolism following podiatric surgery and (b) to investigate the factors that influence the use of thromboprophylaxis. METHODS: Data from 4238 patients who underwent foot and ankle surgery over 2 years were analyzed. Venous thromboembolism within the first 30 days following surgery was recorded using the Australasian College of Podiatric Surgeons surgical audit tool...
January 1, 2018: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/29338049/contribution-of-the-ankle-brachial-index-to-improve-the-prediction-of-coronary-risk-the-artper-cohort
#10
Rosa Forés, Maria Teresa Alzamora, Guillem Pera, José Miguel Baena-Díez, Xavier Mundet-Tuduri, Pere Torán
BACKGROUND: The different cardiovascular risk prediction scales currently available are not sufficiently sensitive. AIM: The aim of the present study was to analyze the contribution of the ankle-brachial index (ABI) added to the Framingham and REGICOR risk scales for the reclassification of cardiovascular risk after a 9-year follow up of a Mediterranean population with low cardiovascular risk. DESIGN AND SETTING: A population-based prospective cohort study was performed in the province of Barcelona, Spain...
2018: PloS One
https://www.readbyqxmd.com/read/29337175/minimally-invasive-versus-extensile-lateral-approach-for-saners-type-ii-and-iii-calcaneal-fractures-a-meta-analysis-of-randomized-controlled-trials
#11
REVIEW
Zhikui Zeng, Lingmei Yuan, Shengpeng Zheng, Youqiang Sun, Feng Huang
BACKGROUND: The use of less-invasive techniques in the treatment of displaced intra-articular calcaneal fractures (DIACFs) remains controversial. No prior meta-analysis has considered the influence of differences in the fracture type. Thus, our meta-analysis aimed to investigate the efficacy and safety of minimally invasive (MI) in Sanders type II and III fractures. MATERIALS AND METHODS: A comprehensive search was performed to identify RCTs comparing MI using sinus tarsi approach (STA) or percutaneous reduction (PR) to open reduction (OR) via extensile lateral approach (ELA) from the Cochrane Library, PubMed, Embase and CNKI...
January 11, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29335929/computational-model-to-investigate-the-relative-contributions-of-different-neuromuscular-properties-of-tibialis-anterior-on-force-generated-during-ankle-dorsiflexion
#12
Ariba Siddiqi, Sridhar Poosapadi Arjunan, Dinesh Kant Kumar
This study describes a new model of the force generated by tibialis anterior muscle with three new features: single-fiber action potential, twitch force, and pennation angle. This model was used to investigate the relative effects and interaction of ten age-associated neuromuscular parameters. Regression analysis (significance level of 0.05) between the neuromuscular properties and corresponding simulated force produced at the footplate was performed. Standardized slope coefficients were computed to rank the effect of the parameters...
January 16, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29334937/perspectives-on-setting-limits-for-rf-contact-currents-a-commentary
#13
REVIEW
Richard A Tell, Christopher A Tell
BACKGROUND: Limits for exposure to radiofrequency (RF) contact currents are specified in the two dominant RF safety standards and guidelines developed by the Institute of Electrical and Electronics Engineers (IEEE) and the International Commission on Non-Ionizing Radiation Protection (ICNIRP). These limits are intended to prevent RF burns when contacting RF energized objects caused by high local tissue current densities. We explain what contact currents are and review some history of the relevant limits with an emphasis on so-called "touch" contacts, i...
January 15, 2018: Biomedical Engineering Online
https://www.readbyqxmd.com/read/29334869/the-influence-of-water-depth-on-kinematic-and-spatiotemporal-gait-parameters-during-aquatic-treadmill-walking
#14
Taeyou Jung, Yumi Kim, Hyosok Lim, Konstantinos Vrongistinos
The purpose of this study was to investigate kinematic and spatiotemporal variables of aquatic treadmill walking at three different water depths. A total of 15 healthy individuals completed three two-minute walking trials at three different water depths. The aquatic treadmill walking was conducted at waist-depth, chest-depth and neck-depth, while a customised 3-D underwater motion analysis system captured their walking. Each participant's self-selected walking speed at the waist level was used as a reference speed, which was applied to the remaining two test conditions...
January 16, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29334862/the-effects-of-an-unanticipated-side-cut-on-lower-extremity-kinematics-and-ground-reaction-forces-during-a-drop-landing
#15
Jae P Yom, Tane Owens, Scott Arnett, Justin Beebe, Veronica Son
Unanticipated direction to cut after landing may alter the lower extremity landing biomechanics when performing landing motions. These alterations may potentially increase the risk of ACL injury. The purpose of this study was to determine if an unanticipated side-cut affects lower extremity landing biomechanics in females. Eighteen recreational female athletes participated in two blocks of testing: the first block of testing consisted of three acceptable trials of anticipated dominant limb and non-dominant limb 45-degree diagonal cutting after landing, which were performed in a counterbalanced order...
January 16, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29334782/outcomes-of-bilateral-vs-unilateral-ankle-arthrodesis
#16
Yuji Maenohara, Akira Taniguchi, Kiyonori Tomiwa, Daisuke Tsuboyama, Hiroaki Kurokawa, Tsukasa Kumai, Sakae Tanaka, Yasuhito Tanaka
BACKGROUND: While ankle arthrodesis is a common treatment for severe ankle osteoarthritis, performing bilateral ankle arthrodesis is controversial because of associated problems, such as severe gait abnormality and bilateral loss of talocrural joint motion. Furthermore, few reports exist regarding the detailed outcomes of bilateral ankle arthrodesis. Therefore, we aimed to compare the outcomes of bilateral ankle arthrodesis with those of unilateral ankle arthrodesis, using both subjective and objective assessments...
January 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29334675/effects-of-running-retraining-on-biomechanical-factors-associated-with-lower-limb-injury
#17
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/29334580/the-power-load-relationship-during-a-countermovement-jump-a-joint-level-analysis
#18
Kym J Williams, Dale W Chapman, Elissa J Phillips, Nick Ball
This study aimed to investigate if hip, knee and ankle peak power is influenced by the relative load lifted, altering the joint and system load-power relationship during a countermovement jump (CMJ). Twenty-Three male national representative athletes (age: 20.3 ± 3.1y, squat 1RM: 133.8 ± 24.8kg) completed three CMJs at relative barbell loads of 0, 10, 20, 30 and 40% of an athlete's estimated back squat 1RM. Ground reaction force and joint kinematics were captured using a 16 camera motion capture array integrated with two in ground tri-axial force plates...
January 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29334475/abandonment-of-assistive-products-assessing-abandonment-levels-and-factors-that-impact-on-it
#19
André T Sugawara, Vinícius D Ramos, Fábio M Alfieri, Linamara R Battistella
PURPOSE: To investigate the levels and factors that influence the abandonment of assistive products by users of a local reference rehabilitation center. METHODS: This observational study involved users who received services and assistive products provided by our center of rehabilitation. Users were identified using the records of the center and their responses about the abandonment were collected through face-to-face interviews. RESULTS: The abandonment level of assistive products was 19...
January 15, 2018: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/29334292/safety-and-effectiveness-of-fascial-therapy-in-adult-patients-with-hemophilic-arthropathy-a-pilot-study
#20
Elena Donoso-Úbeda, Javier Meroño-Gallut, José Antonio López-Pina, Rubén Cuesta-Barriuso
BACKGROUND: The primary clinical manifestations of hemophilia are muscle and joint bleeding. Recurrent bleeding leads to a degenerative process known as hemophilic arthropathy. Fascial therapy is one of the most used physiotherapy techniques today to improve joint dysfunctions and chronic pain. OBJECTIVE: To assess the safety and efficacy of fascial therapy treatment in patients with hemophilic arthropathy of ankle and knee. DESIGN: Non-randomized, controlled clinical trial...
January 15, 2018: Physiotherapy Theory and Practice
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