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https://www.readbyqxmd.com/read/28802220/comparison-of-lower-limb-muscle-strength-between-diabetic-neuropathic-and-healthy-subjects-using-opensim
#1
Alessandra Scarton, Ilse Jonkers, Annamaria Guiotto, Fabiola Spolaor, Gabriella Guarneri, Angelo Avogaro, Claudio Cobelli, Zimi Sawacha
Diabetes neuropathy and vasculopathy are the two major complications of diabetes mellitus, leading to diabetic foot disease, of which the worst consequences are plantar ulcers and amputations. Motor impairments like joint stiffness and loss of balance are distinctive effects of diabetes and they have been extensively explored. However, while altered muscle function has been also assessed through experimentally measured surface electromyography, little is known about muscle forces. The objective of this study was to estimate muscle forces in subjects with diabetes and to use these data to identify differences with respect to a population of healthy subjects matched for age and BMI...
July 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28800714/sagittal-subtalar-and-talocrural-joint-assessment-during-ambulation-with-controlled-ankle-movement-cam-boots
#2
Benjamin D McHenry, Emily L Exten, Janelle A Cross, Karen M Kruger, Brian Law, Jessica M Fritz, Gerald Harris
BACKGROUND: The purpose of the current study was to determine sagittal plane talocrural and subtalar kinematic differences between barefoot and controlled ankle movement (CAM) boot walking. This study used fluoroscopic images to determine talar motion relative to tibia and calcaneal motion relative to talus. METHODS: Fourteen male subjects (mean age 24.1 ± 3.5 years) screened for normal gait were tested. A fluoroscopy unit was used to collect images at 200 Hz during stance...
August 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/28780886/reliability-of-unipodal-and-bipodal-counter-movement-jump-landings-in-a-recreational-male-population
#3
Cédric Schwartz, Bénédicte Forthomme, Julien Paulus, Jean-François Kaux, Olivier Brüls, Vincent Denoël, Jean-Louis Croisier
Movement patterns during landing have been suggested to be related to injury risk. The purpose of this study was to determine the inter-session reliability of kinematic variables and ground reaction forces during landing in a population of male recreational athletes after a counter movement jump. Both unipodal and bipodal landings were evaluated. Furthermore, the possibility to improve landing reliability with a verbal instruction was also studied. Twenty-four male volunteers with no history of lower extremity trauma were randomly assigned to two groups (with and without verbal landing instruction)...
August 6, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28764814/differences-of-muscle-co-contraction-of-the-ankle-joint-between-young-and-elderly-adults-during-dynamic-postural-control-at-different-speeds
#4
Yoshitaka Iwamoto, Makoto Takahashi, Koichi Shinkoda
BACKGROUND: Agonist and antagonist muscle co-contractions during motor tasks are greater in the elderly than in young adults. During normal walking, muscle co-contraction increases with gait speed in young adults, but not in elderly adults. However, no study has compared the effects of speed on muscle co-contraction of the ankle joint during dynamic postural control in young and elderly adults. We compared muscle co-contractions of the ankle joint between young and elderly subjects during a functional stability boundary test at different speeds...
August 2, 2017: Journal of Physiological Anthropology
https://www.readbyqxmd.com/read/28689681/locomotion-pattern-and-foot-pressure-adjustments-during-gentle-turns-in-healthy-subjects
#5
Kathrin E Peyer, Charlotte A Brassey, Kayleigh A Rose, William I Sellers
People suffering from locomotor impairment find turning manoeuvres more challenging than straight-ahead walking. Turning manoeuvres are estimated to comprise a substantial proportion of steps taken daily, yet research has predominantly focused on straight-line walking, meaning that the basic kinetic, kinematic and foot pressure adaptations required for turning are not as well understood. We investigated how healthy subjects adapt their locomotion patterns to accommodate walking along a gently curved trajectory (radius 2...
June 21, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28673119/biomechanical-differences-of-arm-swing-countermovement-jumps-on-sand-and-rigid-surface-performed-by-elite-beach-volleyball-players
#6
George Giatsis, Vassilios Panoutsakopoulos, Iraklis A Kollias
The purpose of this study was to investigate the possible arm swing effect on the biomechanical parameters of vertical counter movement jump due to differences of the compliance of the take-off surface. Fifteen elite male beach-volleyball players (26.2 ± 5.9 years; 1.87 ± 0.05 m; 83.4 ± 6.0 kg; mean ± standard deviation, respectively) performed counter movement jumps on sand and on a rigid surface with and without an arm swing. Results showed significant (p < .05) surface effects on the jump height, the ankle joint angle at the lowest height of the body center of mass and the ankle angular velocity...
July 4, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28639442/weightbearing-ankle-dorsiflexion-range-of-motion-and-sagittal-plane-kinematics-during-single-leg-drop-jump-landing-in-healthy-male-athletes
#7
Brittany Dowling, April L McPherson, James M Paci
BACKGROUND: Passive ankle dorsiflexion range of motion (DROM) measures have been identified as a risk factor for injury during landings. However, passive measurements might not be indicative of dynamic ankle movement, whereas a weightbearing ROM might be a better tool when evaluating movement. The purpose of this study was to investigate the relationship between weightbearing DROM and sagittal plane landing mechanics in a single leg drop jump task. METHODS: 73 male athletes (22...
June 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28634002/acupressure-therapy-for-acute-ankle-sprains-a-randomized-clinical-trial
#8
Mingxing Zhao, Wei Gao, Long Zhang, Wei Huang, Sihua Zheng, Guanliang Wang, Brian Y Hong, Baoyong Tang
BACKGROUND: Ankle sprains occur frequently among young and active people, accounting for almost 2 million injuries per year. Previous reports suggest that acupressure therapy for acute ankle sprains may shorten the recovery time. OBJECTIVE: To evaluate whether acupressure therapy can improve ankle sprain recovery compared with standard RICE (rest, ice, compression, and elevation) treatment. DESIGN: A randomized controlled trial was conducted...
June 19, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28605225/effect-of-shoes-on-stiffness-and-energy-efficiency-of-ankle-foot-orthosis-bench-testing-analysis
#9
Toshiki Kobayashi, Fan Gao, Nicholas LeCursi, K Bo Foreman, Michael S Orendurff
Understanding the mechanical properties of ankle-foot orthoses (AFOs) is important to maximize their benefit for those with movement disorders during gait. Though mechanical properties such as stiffness and/or energy efficiency of AFOs have been extensively studied, it remains unknown how and to what extent shoes influence their properties. The aim of this study was to investigate the effect of shoes on stiffness and energy efficiency of an AFO using a custom mechanical testing device. Stiffness and energy efficiency of the AFO were measured in the plantarflexion and dorsiflexion range, respectively, under AFO-alone and AFO-Shoe combination conditions...
June 12, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28543369/directing-clinical-care-using-lower-extremity-biomechanics-in-patients-with-ankle-osteoarthritis-and-ankle-arthroplasty
#10
REVIEW
Robin Queen
Ankle osteoarthritis is a debilitating disease with approximately 50,000 new cases per year leading to skeletal deformity, severe and recurrent pain, cartilage breakdown, and gait dysfunction limiting patient mobility and well-being. Although many treatments (total ankle arthroplasty [TAA], ankle fusion [arthrodesis], and ankle distraction arthroplasty) relieve pain, it is not clear that these procedures significantly improve patient mobility. The goal of the research presented here is to summarize what is presently known about lower extremity gait mechanics and outcomes and to quantify the impact of ankle osteoarthritis and TAA have on these measures using an explicitly holistic and mechanistic approach...
May 19, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28530489/optimizing-calf-muscle-pump-function
#11
Christopher R Lattimer, Claude Franceschi, Evi Kalodiki
Background The tip toe manoeuvre has been promoted as the gold standard plethysmography test for measuring calf muscle pump function. The aim was to compare the tip toe manoeuvre, dorsiflexion manoeuvre and a body weight transfer manoeuvre using the ejection fraction of air-plethysmography and evaluate which has the best pumping effect. Methods Sixty-six archived tracings on 22 legs were retrieved from an air-plethysmography workshop and analysed. Pumping performance was measured using the calf volume reduction after each manoeuvre...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28529013/bipolar-fresh-total-osteochondral-allograft-in-the-ankle-is-it-a-successful-long-term-solution
#12
S Giannini, A Mazzotti, F Vannini
INTRODUCTION: Severe post-traumatic ankle arthritis poses a reconstructive challenge in young and active patients. Although technically demanding and despite unsolved immunological issues, bipolar fresh total osteochondral allograft (BFTOA) represent an intriguing option to arthrodesis and prosthetic replacement. The purpose of this paper is to evaluate the outcomes of a series of 48 ankle BFTOA at 10 years follow up and to investigate the rate of survival long term. METHODS: 58 patients underwent BFTOA, of these 48 were available for follow up...
May 11, 2017: Injury
https://www.readbyqxmd.com/read/28505961/effects-of-dual-task-conditions-on-cervical-spine-movement-variability
#13
Daniel Niederer, Lutz Vogt, Johanna Vogel, Winfried Banzer
BACKGROUND: The potential to accurately perform cervical movements during more challenging tasks might be of importance to prevent dysfunctional motion characteristics. Although sensorimotor function during dual-task conditions are of increasing interest in biomedical and rehabilitation research, effects of such conditions on movement consistency of the neck have not yet been investigated. OBJECTIVE: In this crossover MiSpEx(Medicine in Spine Exercise)-diagnostic study, we aimed to explore differences between single and dual-task conditions on cervical movement variability...
May 5, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28501732/asymmetrical-stabilization-and-mobilization-exploited-during-static-single-leg-stance-and-goal-directed-kicking
#14
Adam C King, Zheng Wang
The motor control properties of the right and left legs are dependent on the stabilization and mobilization features of the motor tasks. The current investigation examined the right and left leg control differences - interlateral asymmetries - during static single leg stance and dynamic goal directed kicking with an emphasis of the asymmetrical stabilization and mobilization components of movements. Ten young, healthy, right-leg preferred individuals with minimal kicking experience completed both tests on each limb...
May 11, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28490908/effects-of-prophylactic-ankle-and-knee-braces-on-leg-stiffness-during-hopping
#15
Hiroaki Hobara, Satoru Hashizume, Yoshiyuki Kobayashi
During human movement, the leg can be represented as a mechanical spring, with its stiffness potentially contributing to sports performance and injury prevention. Although many individuals perform athletic activities with joint stabilizers, little is known about the effects of prophylactic lower extremity braces on leg stiffness. The objective of this study was to investigate the effect of ankle and/or knee braces on leg stiffness measured during one-legged hopping at a range of frequencies. Thirteen male participants performed one-legged hopping with their dominant leg at frequencies of 2...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28486863/the-influence-of-the-use-of-ankle-foot-orthoses-on-thorax-spine-and-pelvis-kinematics-during-walking-in-children-with-cerebral-palsy
#16
Eva Swinnen, Jean-Pierre Baeyens, Benjamin Van Mulders, Julian Verspecht, Marc Degelaen
BACKGROUND: To improve gait function in children with cerebral palsy, ankle-foot orthoses are often prescribed. However, until now, little attention has been devoted to the effect of ankle-foot orthoses on the postural control during walking in children with cerebral palsy. OBJECTIVES: The aim was to compare the differences in thorax, spine, and pelvis movements in children with cerebral palsy during walking barefoot and walking with ankle-foot orthoses. STUDY DESIGN: Clinical study with an intra subject design...
May 1, 2017: Prosthetics and Orthotics International
https://www.readbyqxmd.com/read/28461964/arthroscopic-management-of-articular-and-peri-articular-fractures-of-the-upper-limb
#17
REVIEW
Luca Dei Giudici, Andrea Faini, Luca Garro, Agostino Tucciarone, Antonio Gigante
The management of articular fractures is always a matter of concern. Each articular fracture is different from the other, whatever the classification system used and the surgical or non-surgical indications employed by the surgeon. The main goals remain anatomical reduction, stable fixation, loose body removal and minimal invasiveness.Open procedures are a compromise. Unfortunately, it is not always possible to meet every treatment goal perfectly, since associated lesions can pass unnoticed or delay treatment, and even in a 'best-case' scenario there can be complications in the long term...
September 2016: EFORT open reviews
https://www.readbyqxmd.com/read/28437637/analysis-of-free-moment-and-center-of-pressure-frequency-components-during-quiet-standing-using-magnitude-squared-coherence
#18
Dean C Hay, Mark P Wachowiak
To date, no postural studies have investigated the specific relationship between linear (anteroposterior (AP) and mediolateral (ML)) postural sway and the free moment (FM) over the range of biomechanically important frequencies. The goal of the current paper is to study the relationship between FM and the AP/ML movements during quiet standing with respect to individual frequencies. Mean squared coherence, which measures the degree of the relationship between two signals as a function of frequency, is employed to address this question...
April 21, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28408157/microsoft-kinect-can-distinguish-differences-in-over-ground-gait-between-older-persons-with-and-without-parkinson-s-disease
#19
Moataz Eltoukhy, Christopher Kuenze, Jeonghoon Oh, Marco Jacopetti, Savannah Wooten, Joseph Signorile
Gait patterns differ between healthy elders and those with Parkinson's disease (PD). A simple, low-cost clinical tool that can evaluate kinematic differences between these populations would be invaluable diagnostically; since gait analysis in a clinical setting is impractical due to cost and technical expertise. This study investigated the between group differences between the Kinect and a 3D movement analysis system (BTS) and reported validity and reliability of the Kinect v2 sensor for gait analysis. Nineteen subjects participated, eleven without (C) and eight with PD (PD)...
April 10, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28350716/movement-strategies-among-groups-of-chronic-ankle-instability-coper-and-control
#20
S Jun Son, Hyunsoo Kim, Matthew K Seeley, J Ty Hopkins
INTRODUCTION: Comprehensive evaluation of movement strategies during functional movement is a difficult undertaking. Because of this challenge, studied movements have been oversimplified. Furthermore, evaluating movement strategies at only a discrete time point(s) provide limited insight into how movement strategies may change or adapt in chronic ankle instability (CAI) patients. This study aimed to identify abnormal movement strategies in individuals with a history of ankle sprain injury during a sports maneuver compared with healthy controls...
August 2017: Medicine and Science in Sports and Exercise
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