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https://www.readbyqxmd.com/read/29234302/home-based-virtual-reality-augmented-training-improves-lower-limb-muscle-strength-balance-and-functional-mobility-following-chronic-incomplete-spinal-cord-injury
#1
Michael Villiger, Jasmin Liviero, Lea Awai, Rahel Stoop, Pawel Pyk, Ron Clijsen, Armin Curt, Kynan Eng, Marc Bolliger
Key factors positively influencing rehabilitation and functional recovery after spinal cord injury (SCI) include training variety, intensive movement repetition, and motivating training tasks. Systems supporting these aspects may provide profound gains in rehabilitation, independent of the subject's treatment location. In the present study, we test the hypotheses that virtual reality (VR)-augmented training at home (i.e., unsupervised) is feasible with subjects with an incomplete SCI (iSCI) and that it improves motor functions such as lower limb muscle strength, balance, and functional mobility...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29230568/ankle-brachial-pressure-index-as-a-predictor-of-the-2-year-outcome-after-transcatheter-aortic-valve-replacement-data-from-the-japanese-ocean-tavi-registry
#2
Masahiro Yamawaki, Motoharu Araki, Tsutomu Ito, Yosuke Honda, Takahiro Tokuda, Yoshiaki Ito, Hiroshi Ueno, Kazuki Mizutani, Minoru Tabata, Akihiro Higashimori, Norio Tada, Kensuke Takagi, Futoshi Yamanaka, Toru Naganuma, Yusuke Watanabe, Masanori Yamamoto, Shinichi Shirai, Kentaro Hayashida
Peripheral artery disease plays a pivotal role for access site selection in transcatheter aortic valve replacement (TAVR). Abnormal ankle-brachial index (ABI) is a generalized mortality marker in many cardiovascular scenarios. However, the long-term outcomes in high-risk TAVR populations remain unclear. We investigated the association between low ABI and 2-year outcome after TAVR. Of 1613 patients enrolled in the OCEAN-TAVI registry, 1458 (90.4%) who underwent ABI before TAVR were divided into groups: patients with (1) ABI ≥ 0...
December 11, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/29224940/results-of-nonoperative-management-of-acute-limb-ischemia-in-infants
#3
S Keisin Wang, Gary W Lemmon, Natalie A Drucker, Raghu L Motaganahalli, Michael C Dalsing, Ashley R Gutwein, Brian W Gray, Michael P Murphy
OBJECTIVE: Acute limb ischemia (ALI) in infants poses a challenge to the clinician secondary to poor operative outcomes, limb loss risk, and lifelong morbidity. This retrospective study reviewed a 10-year institutional experience with the nonoperative management of ALI in infants. METHODS: Infants (aged ≤12 months) diagnosed with ALI by duplex ultrasound and treated with initial nonoperative management at a tertiary care children's hospital were identified through vascular laboratory arterial duplex ultrasound records and International Classification of Diseases and Current Procedural Terminology codes associated with ALI...
December 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29221902/a-comparison-of-patellofemoral-cartilage-morphology-and-deformation-in-anterior-cruciate-ligament-deficient-versus-uninjured-knees
#4
Kwadwo A Owusu-Akyaw, Lauren N Heckelman, Hattie C Cutcliffe, E Grant Sutter, Zoë A Englander, Charles E Spritzer, William E Garrett, Louis E DeFrate
Anterior cruciate ligament (ACL) deficient patients have an increased rate of patellofemoral joint (PFJ) osteoarthritis (OA) as compared to the general population. Although the cause of post-injury OA is multi-factorial, alterations in joint biomechanics may predispose patients to cartilage degeneration. This study aimed to compare in vivo PFJ morphology and mechanics between ACL deficient and intact knees in subjects with unilateral ACL ruptures. Eight male subjects underwent baseline MRI scans of both knees...
November 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29219884/abduction-in-proximal-hamstring-tendon-avulsion-injury-mechanism-a-report-on-3-athletes
#5
Anne D van der Made, Rolf W Peters, Claire Verheul, Mario Maas, Gino M Kerkhoffs
Proximal hamstring tendon avulsions are typically sustained during forced hip hyperflexion combined with knee extension. We present 3 cases of athletes with a proximal hamstring tendon avulsion caused by an alternative injury mechanism that also involves a considerable hip abduction component (flexion-abduction injury mechanism). All cases had at least one concurrent injury of the medial thigh muscles, either on the ipsilateral or contralateral side. The 2 elite athletes with this injury mechanism returned to sport at preinjury level relatively quickly...
December 1, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29216703/-effect-of-sports-training-in-angular-compartment-of-the-lower-limbs-in-children-footballers-aged-11-to-12-years-old
#6
J Burboa, M Bahamonde, M Inostroza, P Lillo, M Barahona, M Palet, J Hinzpeter
Anterior Cruciate Ligament (ACL) injury is an important cause of days lost in athletes. Most ACL injuries are non-contact and are associated with biomechanical risk factors that increase tension in the ACL: increased knee valgus (KV) and hip flexion (HF) and decreased flexion of knee (KF). Muscle around the knee contributes to knee stability, so fatigue produced by exercise could alter knee balance, increasing LCA tension. The aim of the study is to determine the angular behavior before and after a physical load for CF, RR and RV in children born in 2002-2003...
May 2017: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/29216241/discussion-about-different-cut-off-values-of-conventional-hamstring-to-quadriceps-ratio-used-in-hamstring-injury-prediction-among-professional-male-football-players
#7
Monika Grygorowicz, Martyna Michałowska, Tomasz Walczak, Adam Owen, Jakub Krzysztof Grabski, Andrzej Pyda, Tomasz Piontek, Tomasz Kotwicki
OBJECTIVE: To measure the sensitivity and specificity of differences cut-off values for isokinetic Hcon/Qcon ratio in order to improve the capacity to evaluate (retrospectively) the injury of hamstring muscles in professional soccer screened with knee isokinetic tests. DESIGN: Retrospective study. METHODS: Medical and biomechanical data of professional football players playing for the same team for at least one season between 2010 and 2016 were analysed...
2017: PloS One
https://www.readbyqxmd.com/read/29205982/spasticity-or-periodic-limb-movements
#8
Jonathan Levy, Sarah Hartley, Elsa Mauruc-Soubirac, Antoine Leotard, Frederic Lofaso, Maria-Antonia Quera-Salva, Djamel Bensmail
BACKGROUND: Spasticity and spasms are distressing features of the upper motor neuron syndrome (UMNS) following spinal cord injuries (SCI) or multiple sclerosis (MS), and have common therapeutic implications. Despite an increase of antispastic drugs and strategies, sometimes up to the surgical implant of intrathecal baclofen pump, some patients still complain of disabling spasms, which poses diagnostic and therapeutic challenges. Although clinically similar, flexor spasms due to pyramidal tract disruption must be clearly differentiated from periodic limb movements (PLM), often accompanying restless leg syndrome (RLS) and occurring during sleep...
December 4, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29205215/symmetry-of-lower-limb-loading-in-healthy-adults-during-normal-and-abnormal-stance
#9
Jacek Stodółka, Małgorzata Sobera
PURPOSE: The purpose of the research was twofold: (1) to describe the normal asymmetry in lower limb loading during a normal stance and during a stance with visual and vestibular disturbance relating to the lower limb dominance, (2) to assess relations of loading of both lower limbs with body weight and height (BMI) and leg functional dominance. METHODS: The subjects of this study were 95 students. Settings of the two Kistler platforms were used to register the time series of the vertical component of the ground reaction force while the subject was standing (45 seconds) in a normal position and next with eyes covered with a band and head tilted back position with one leg placed on one platform and the other on the second platform...
2017: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/29204381/a-fuzzy-controller-for-movement-stabilization-using-afferent-control-controller-synthesis-and-simulation
#10
Zahra Khodadadi, Hamid R Kobravi, Milad F Majd
Stimulation of spinal sensorimotor circuits can improve motor control in animal models and humans with spinal cord injury (SCI). More recent evidence suggests that the stimulation increases the level of excitability in the spinal circuits, activates central pattern generators, and it is also able to recruit distinctive afferent pathways connected to specific sensorimotor circuits. In addition, the stimulation generates well-defined responses in leg muscles after each pulse. The problem is that in most of the neuromodulation devices, electrical stimulation parameters are regulated manually and stay constant during movement...
October 2017: Journal of Medical Signals and Sensors
https://www.readbyqxmd.com/read/29204327/automated-assessment-of-dynamic-knee-valgus-and-risk-of-knee-injury-during-the-single-leg-squat
#11
Rezvan Kianifar, Alexander Lee, Sachin Raina, Dana Kulic
Many clinical assessment protocols of the lower limb rely on the evaluation of functional movement tests such as the single leg squat (SLS), which are often assessed visually. Visual assessment is subjective and depends on the experience of the clinician. In this paper, an inertial measurement unit (IMU)-based method for automated assessment of squat quality is proposed to provide clinicians with a quantitative measure of SLS performance. A set of three IMUs was used to estimate the joint angles, velocities, and accelerations of the squatting leg...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/29204225/-in-vivo-gastrocnemius-muscle-tendon-ratio-in-patients-with-cerebral-palsy
#12
Muhammad Naghman Choudhry, Haris Naseem, Ihsan Mahmood, Adeel Aqil, Tahir Khan
Background: The position of the gastrocnemius tendon in relation to the leg length may be different in children with cerebral palsy as compared to normal children. The palpation of muscle bellies or previous experience of the operating surgeon is employed to place the surgical incision for lengthening of the gastrocnemius aponeurosis. Inaccurate localisation may cause incorrect incisions and a risk of iatrogenic damage to the vital structures (i.e. sural nerve). Objectives: The aim of our study is to compare gastrocnemius length in-vivo between paretic and unaffected children and create a formula to localise the muscle-tendon junction accurately...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29201925/a-comparison-of-nonoperative-and-operative-treatment-of-complete-proximal-hamstring-ruptures
#13
Braidy C Shambaugh, Joshua R Olsen, Edward Lacerte, Ethan Kellum, Suzanne L Miller
Background: The early repair of acute proximal hamstring ruptures provides better clinical results than delayed repair. However, it is unclear how nonoperative treatment compares with the operative treatment of these injuries. Purpose: To compare the clinical results of the nonoperative and operative treatment of acute proximal hamstring ruptures. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 25 patients with complete, retracted proximal hamstring ruptures presenting to 1 institution were retrospectively reviewed...
November 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29197302/the-effect-of-impact-duration-on-the-axial-fracture-tolerance-of-the-isolated-tibia-during-automotive-and-military-impacts
#14
Alberto A Martinez, Avery B Chakravarty, Cheryl E Quenneville
Axial impacts to the lower leg during debilitating events such as frontal automotive collisions and military underbody blasts can cause significant injuries to the tibia. Several studies have conducted axial impact tests to determine the injury limits of the lower leg, mostly focused on automotive intrusions, resulting in an established force criterion for injury assessments. Due to the viscoelastic properties of bone, it remains unclear whether results from automotive experiments can be applied to higher-rate military blasts...
November 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29193314/effects-of-wobble-board-training-on-single-leg-landing-neuromechanics
#15
Priscila de Brito Silva, Anderson Souza Castelo Oliveira, Natalie Mrachacz-Kersting, Uwe Gustav Kersting
Balance training programs have been shown to reduce ankle sprain injuries in sports, but little is known about the transfer from this training modality to motor coordination and ankle joint biomechanics in sport specific movements. This study aimed to investigate the effects of wobble board training on motor coordination and ankle mechanics during early single-leg landing from a lateral jump. Twenty-two healthy men were randomly assigned to either a control or a training group, who engaged in four weeks of wobble board training...
November 29, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29191287/a-survey-of-the-scope-of-chiropractic-practice-in-south-africa-2015
#16
Gheta L Johl, Christopher J Yelverton, Cynthia Peterson
OBJECTIVES: The purpose of this study was to identify characteristics specific to the chiropractic profession in South Africa and compare them with those of other countries where similar surveys have been conducted. METHODS: This survey utilized a structured questionnaire designed to reflect chiropractic practice in South Africa. The questionnaire was made available online for completion by 714 chiropractic practitioners who were registered with the Allied Health Professions Council of South Africa in 2015...
September 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/29188336/no-risk-of-arthrofibrosis-after-acute-anterior-cruciate-ligament-reconstruction
#17
Karl Eriksson, Christoffer von Essen, Sven Jönhagen, Björn Barenius
PURPOSE: To compare acute ACL reconstruction (ACLR) within 8 days of injury with delayed reconstruction after normalized range of motion (ROM), 6-10 weeks after injury. It was hypothesized that acute ACL reconstruction with modern techniques is safe and can be beneficial in terms of patient-reported outcomes and range of motion. METHODS: Sample size calculation indicated 64 patients would be required to find a 5° difference in ROM at 3 months. Seventy patients with high recreational activity level, Tegner level 6 or more, were randomized to acute (within 8 days) or delayed (6-10 weeks) ACLR between 2006 and 2013...
November 29, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29188333/dynamically-tensioned-acl-functional-knee-braces-reduce-acl-and-meniscal-strain
#18
Sebastian Tomescu, Ryan Bakker, David Wasserstein, Mayank Kalra, Micah Nicholls, Cari Whyne, Naveen Chandrashekar
PURPOSE: The effectiveness of ACL functional knee braces to reduce meniscal and ACL strain after ACL injury or reconstruction is not well understood. A new dynamic knee tensioning brace system has been designed to apply an active stabilizing force to the knee. The ability of this system to reduce tissue strains is unknown. The purpose of this study was to test the ability of the dynamically tensioned brace to reduce strain in both the ACL and meniscus during rehabilitation activities...
November 29, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29181625/development-of-a-high-resolution-infrared-thermographic-imaging-method-as-a-diagnostic-tool-for-acute-undifferentiated-limp-in-young-children
#19
R Owen, S Ramlakhan, R Saatchi, D Burke
Acute limp is a common presenting condition in the paediatric emergency department. There are a number of causes of acute limp that include traumatic injury, infection and malignancy. These causes in young children are not easily distinguished. In this pilot study, an infrared thermographic imaging technique to diagnose acute undifferentiated limp in young children was developed. Following required ethics approval, 30 children (mean age = 5.2 years, standard deviation = 3.3 years) were recruited. The exposed lower limbs of participants were imaged using a high-resolution thermal camera...
November 28, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29181560/stability-and-alignment-do-not-improve-by-using-patient-specific-instrumentation-in-total-knee-arthroplasty-a-randomized-controlled-trial
#20
Nienke M Kosse, Petra J C Heesterbeek, Janneke J P Schimmel, Gijs G van Hellemondt, Ate B Wymenga, Koen C Defoort
PURPOSE: The primary aim of the study was to examine stability and alignment after total knee arthroplasty (TKA) using patient-specific instrumentation (PSI) and conventional instrumentation (CI). The hypothesis was that stability and alignment would be better using PSI than CI, 12 months postoperatively. The secondary aim included the evaluation of clinical outcomes after TKA. METHODS: In this prospective randomized controlled trial, 42 patients with knee osteoarthritis received a Genesis II PS prosthesis with either PSI or CI...
November 28, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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