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https://www.readbyqxmd.com/read/28227609/spring-operated-wearable-enhancer-for-arm-rehabilitation-springwear-after-stroke
#1
Ji Chen, Peter S Lum, Ji Chen, Peter S Lum, Ji Chen, Peter S Lum
A 5-DOF spring actuated exoskeleton, called SpringWear, was developed to increase range of motion in the affected arms of stroke patients. Theoretically perfect gravity compensation is provided at the shoulder elevation DOF. Additional torque is provided to assist weakness in forearm supination and elbow extension. Three stroke patients were tested. All of the assisted joints increased in range of motion, and larger gains should be possible with refinements in the available torque profiles. Additionally, finger range of motion was increased in one subject when asked to open the hand while holding the shoulder at 90 degrees of elevation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222541/augmented-effects-of-emg-biofeedback-interfaced-with-virtual-reality-on-neuromuscular-control-and-movement-coordination-during-reaching-in-children-with-cerebral-palsy
#2
Ji Won Yoo, Dong Ryul Lee, Young Joo Cha, Sung Hyun You
BACKGROUND: The purpose of the present study was to compare therapeutic effects of an electromyography (EMG) biofeedback augmented by virtual reality (VR) and EMG biofeedback alone on the triceps and biceps (T:B) muscle activity imbalance and elbow joint movement coordination during a reaching motor taskOBJECTIVE: To compare therapeutic effects of an electromyography (EMG) biofeedback augmented by virtual reality (VR) and EMG biofeedback alone on the triceps and biceps muscle activity imbalance and elbow joint movement coordination during a reaching motor task in normal children and children with spastic cerebral palsy (CP)...
January 30, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28169136/in-vitro-wear-of-ultrahigh-molecular-weight-polyethylene-and-vitamin-e-blended-highly-cross-linked-polyethylene-in-linked-semiconstrained-total-elbow-replacement-prostheses
#3
Oludele O Popoola, Brian L Kincaid, Kimberly Mimnaugh, Mark Marqueling
BACKGROUND: The objectives of this study were to develop a clinically relevant in vitro elbow wear test and to compare the polyethylene wear of 2 total elbow replacement prostheses, one that uses conventional gamma-irradiated polyethylene (CPE) and one that uses vitamin E blended and cross-linked polyethylene (VE-HXPE) bushings. MATERIALS AND METHODS: The test protocol applied 0° to 85° flexion-extension motions and imposed a constant 4.5° varus malalignment of the ulnar relative to the humeral implant under a variable joint load profile at a frequency of 1 Hz...
February 3, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28164716/cardiorespiratory-fitness-and-muscle-strength-in-late-adolescence-and-long-term-risk-of-early-heart-failure-in-swedish-men
#4
Martin Lindgren, Maria Åberg, Maria Schaufelberger, David Åberg, Linus Schiöler, Kjell Torén, Annika Rosengren
Aims To investigate the association between cardiorespiratory fitness (CRF) and muscle strength in late adolescence and the long-term risk of heart failure (HF). Methods A cohort was created of Swedish men enrolled in compulsory military service between 1968 and 2005 with measurements for CRF and muscle strength ( n = 1,226,623; mean age 18.3 years). They were followed until 31 December 2014 for HF hospitalization as recorded in the Swedish national inpatient registry. Results During the follow-up period (median (interquartile range) 28...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28149411/the-relationship-between-maximum-isometric-strength-and-ball-velocity-in-the-tennis-serve
#5
Ernest Baiget, Francisco Corbi, Juan Pedro Fuentes, Jaime Fernández-Fernández
The aims of this study were to analyze the relationship between maximum isometric strength levels in different upper and lower limb joints and serve velocity in competitive tennis players as well as to develop a prediction model based on this information. Twelve male competitive tennis players (mean ± SD; age: 17.2 ± 1.0 years; body height: 180.1 ± 6.2 cm; body mass: 71.9 ± 5.6 kg) were tested using maximum isometric strength levels (i.e., wrist, elbow and shoulder flexion and extension; leg and back extension; shoulder external and internal rotation)...
December 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28128085/antiphospholipid-syndrome-with-anti%C3%AE-2glicoprotein-1-antibodies-as-the-cause-of-recurrent-tibial-vein-thrombosis-in-sapho-syndrome
#6
Hanna Przepiera-Będzak, Marek Brzosko
The antiphospholipid antibody syndrome is defined by the presence of antiphospholipid antibodies in patients with recurrent venous or arterial thromboembolism (1). SAPHO syndrome is a rare disease, characterized by specific clinical manifestations of synovitis, acne pustulosis, hyperostosis, and osteitis. It is a disease that manifests with a combination of osseous and articular manifestations associated with skin lesions (2). Venous thrombosis complicating SAPHO syndrome seems to be uncommon with an unclear pathogenesis (3-9)...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28087121/upper-extremity-outcome-measures-for-collagen-vi-related-myopathy-and-lama2-related-muscular-dystrophy
#7
Roxanna M Bendixen, Jocelyn Butrum, Mina S Jain, Rebecca Parks, Bonnie Hodsdon, Carmel Nichols, Michelle Hsia, Leslie Nelson, Katherine C Keller, Michelle McGuire, Jeffrey S Elliott, Melody M Linton, Irene C Arveson, Fatou Tounkara, Ruhi Vasavada, Elizabeth Harnett, Monal Punjabi, Sandra Donkervoort, Jahannaz Dastgir, Meganne E Leach, Anne Rutkowski, Melissa Waite, James Collins, Carsten G Bönnemann, Katherine G Meilleur
Congenital muscular dystrophy (CMD) comprises a rare group of genetic muscle diseases that present at birth or early during infancy. Two common subtypes of CMD are collagen VI-related muscular dystrophy (COL6-RD) and laminin alpha 2-related dystrophy (LAMA2-RD). Traditional outcome measures in CMD include gross motor and mobility assessments, yet significant motor declines underscore the need for valid upper extremity motor assessments as a clinical endpoint. This study validated a battery of upper extremity measures in these two CMD subtypes for future clinical trials...
March 2017: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/28052417/c8-cross-transfer-for-the-treatment-of-caudal-brachial-plexus-avulsion-in-three-dogs
#8
Pierre Moissonnier, Claude Carozzo, Jean-Laurent Thibaut, Catherine Escriou, Antoine Hidalgo, Stéphane Blot
OBJECTIVE: To evaluate the cervical nerve 8 cross-transfer technique (C8CT) as a part of surgical treatment of caudal brachial plexus avulsion (BPA) in the dog. STUDY DESIGN: Case series. ANIMALS: Client-owned dogs suspected to have caudal BPA based on neurological examination and electrophysiological testing (n = 3). METHODS: The distal stump of the surgically transected contralateral C8 ventral branch (donor) was bridged to the proximal stump of the avulsed C8 ventral branch (recipient) and secured with 9-0 polypropylene suture under an operating microscope...
January 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27979366/does-the-saline-load-test-still-have-a-role-in-the-orthopaedic-world-a-systematic-review-of-the-literature
#9
REVIEW
Benjamin B Browning, Anthony V Ventimiglia, Anant Dixit, Emmanuel Illical, William P Urban, Julio J Jauregui
INTRODUCTION: The aim of this systematic review was to assess the efficacy of Saline load tests (SLTs) to evaluate extension of periarticular wounds into capsule in emergent settings. METHODS: We systematically reviewed the literature to evaluate the accuracy of the SLT in diagnosing penetrating joint injuries in the elbow, wrist, shoulder, knee, or ankle. RESULTS: The SLT values to determine knee arthrotomies vary from 73.8 mL to 194 mL with sensitivities ranging between 91% and 99% depending on the size of the laceration...
December 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27976985/analysis-of-elbow-muscle-strength-parameters-in-brazilian-jiu-jitsu-practitioners
#10
Bruno Follmer, Rodolfo André Dellagrana, Luis Antonio Pereira de Lima, Walter Herzog, Fernando Diefenthaeler
Upper-body dynamic and isometric maximum strength are essential components for success in Brazilian jiu-jitsu (BJJ). This study was aimed at analysing strength parameters in the elbow flexor and extensor muscles of BJJ practitioners. Participants (n = 28) performed maximum isometric contractions of elbow flexors and extensors to determine peak torque (PT), rate of force development (RFD), and the torque-angle (T-A) relationship at elbow angles of 45°, 60°, 75°, 90°, 105°, and 120°. Additionally, concentric and eccentric PTs were measured at 1...
December 15, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27942265/correlations-between-changes-in-undercarboxylated-osteocalcin-and-muscle-function-in-hypoparathyroidism
#11
Torben Harslof, Tanja Sikjaer, Leif Mosekilde, Bente L Langdahl, Lars Rejnmark
BACKGROUND: Muscles and bones are interconnected. Recent studies suggest that undercarboxylated osteocalcin from bone may affect muscle mass and strength. There are, however, no prospective human data on this relationship. METHODS: We previously treated patients with hypoparathyroidism with intact Parathyroid Hormone (PTH) or placebo in a six-month randomized, placebo-controlled trial and demonstrated a marked increase in undercarboxylated osteocalcin (ucOC) in the PTH-treated group...
July 2016: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27941328/upper-extremity-function-predicts-adverse-health-outcomes-among-older-adults-hospitalized-for-ground-level-falls
#12
Bellal Joseph, Nima Toosizadeh, Tahereh Orouji Jokar, Michelle R Heusser, Jane Mohler, Bijan Najafi
BACKGROUND: Despite National Surgical Quality Improvement guidelines to integrate frailty into surgical elder assessments, a quick, accurate, and simple frailty assessment tool suitable for busy clinical settings is still not available. Recently, we have demonstrated that a simple upper-extremity function (UEF) test based on wearable sensors could identify frailty with high agreement with conventional assessments by testing 20-s repetitive elbow flexion and extension. OBJECTIVE: We examined whether UEF parameters are sensitive for predicting adverse health outcomes in bedbound older adults admitted to hospital due to ground-level fall injuries...
December 10, 2016: Gerontology
https://www.readbyqxmd.com/read/27914843/hemiarthroplasty-for-the-treatment-of-distal-humeral-fractures-midterm-clinical-results
#13
Mark Schultzel, Karl Scheidt, Christopher C Klein, Steven J Narvy, Brian K Lee, John M Itamura
BACKGROUND: Total elbow arthroplasty is a treatment for unreconstructable distal humeral fractures; however, longevity of the implant remains a concern in younger, more active patients. Distal humeral hemiarthroplasty (DHH) offers an alternative with multiple advantages. METHODS: This is a retrospective study of 10 patients who underwent DHH for distal humeral fractures during a 4-year period (2008-2012) by a single surgeon. Patients underwent testing of range of motion, Mayo Elbow Performance Score, Disabilities of Arm, Shoulder and Hand, visual analog scale, Single Assessment Numeric Evaluation, and American Shoulder and Elbow Surgeons scores...
March 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27904213/functional-outcome-of-intraarticular-distal-humerus-fracture-fixation-using-triceps-sparing-paratricipital-approach
#14
Vishal Yadav, Pulak Sharma, Ashish Gohiya
BACKGROUND: Displaced intraarticular distal humerus fracture has been conventionally treated operatively with various triceps disrupting approaches. These approaches are associated with several complications, such as triceps weakness, nonunion or delayed union of osteotomy, implant prominence, and delayed mobilization of the elbow. We present the functional outcome of intraarticular distal humerus fracture fixation using a triceps-sparing paratricipital approach which allows early elbow mobilization and preserving triceps strength...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27900706/anatomical-variations-of-the-trochlear-notch-angle-mri-analysis-of-78-elbows
#15
G Giannicola, M Scacchi, P Sedati, S Gumina
BACKGROUND: Little is known about the anatomical variations of the trochlear notch angle, nor do we know whether the cartilaginous layer modifies the trochlear bony contour. Our aim was to assess the variability of the bony and cartilaginous trochlear notch angles. MATERIALS AND METHODS: We assessed 78 healthy elbows (39 patients, 19 females and 20 males) with a mean age of 28 years (range 21-32). High-definition MRI coronal scans at the level of the flexion-extension axis were performed...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27887872/optimizing-the-rehabilitation-of-elbow-lateral-collateral-ligament-injuries-a-biomechanical-study
#16
Ranita H K Manocha, Jonathan R Kusins, James A Johnson, Graham J W King
BACKGROUND: Elbow lateral collateral ligament (LCL) injury may arise after trauma or lateral surgical approaches. The optimal method of rehabilitating the LCL-insufficient elbow is unclear. Therapists often prescribe active motion exercises with the forearm pronated. Recently, overhead exercises have become popular as they may enable gravity to compress the elbow joint, improving stability, although this has not been proved biomechanically. This investigation aimed to quantify the effects of several variables used in LCL injury rehabilitation on elbow stability...
November 22, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27834503/upper-quadrant-field-tests-and-isokinetic-upper-limb-strength-in-overhead-athletes
#17
COMPARATIVE STUDY
Dorien Borms, Annelies Maenhout, Ann M Cools
CONTEXT: Isokinetic testing is used to determine possible deficits in upper extremity strength in overhead athletes. Given that isokinetic testing is restricted to a laboratory setting, field tests, such as the Seated Medicine Ball Throw (SMBT) and Upper Quarter Y-Balance Test (YBT-UQ), were developed to assess upper body performance. The relationships between these field tests and isokinetic strength have not been examined. OBJECTIVE: To investigate the relationship between isokinetic strength testing for shoulder external and internal rotation and elbow flexion and extension and SMBT distance and YBT-UQ performance in overhead athletes...
October 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27826108/knee-extensors-neuromuscular-fatigue-changes-the-corticospinal-pathway-excitability-in-biceps-brachii-muscle
#18
Saied Jalal Aboodarda, Nemanja Šambaher, Guillaume Y Millet, David G Behm
Equivocal evidence indicates that high-intensity muscle contractions can affect the corticospinal responses in muscles not directly involved in the task. In the present study, the responsiveness of corticomotor pathway innervating non-dominant biceps brachii was measured in eleven healthy participants before and after: (i) two 100-s isometric unilateral knee extension maximal voluntary contractions (MVCs) on dominant leg (FATIGUE) and (ii) rest (CONTROL). Transcranial magnetic stimulation, transmastoid electrical and brachial plexus electrical stimulation were used to evoke motor evoked potential (MEP), cervicomedullary motor evoked potential (CMEP) and compound muscle action potential (Mmax) in biceps brachii muscle...
January 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/27818638/proprioceptive-localization-of-the-hand-changes-when-skin-stretch-around-the-elbow-is-manipulated
#19
Irene A Kuling, Eli Brenner, Jeroen B J Smeets
Cutaneous information has been shown to influence proprioceptive position sense when subjects had to judge or match the posture of their limbs. In the present study, we tested whether cutaneous information also affects proprioceptive localization of the hand when moving it to a target. In an explorative study, we manipulated the skin stretch around the elbow by attaching elastic sports tape to one side of the arm. Subjects were asked to move the unseen manipulated arm to visually presented targets. We found that the tape induced a significant shift of the end-points of these hand movements...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27810848/effects-of-a-short-duration-stretching-drill-after-pitching-on-elbow-and-shoulder-range-of-motion-in-professional-baseball-pitchers
#20
Rafael F Escamilla, Kyle Yamashiro, Tony Mikla, Jeff Collins, Keith Lieppman, James R Andrews
BACKGROUND: A glenohumeral internal rotation (IR) deficit or a total rotational motion (IR plus external rotation [ER]) deficit in the throwing shoulder compared with the nonthrowing shoulder has been shown to increase the risk of shoulder and elbow injuries. After a pitching session, both IR and total rotational motion deficits have been shown to occur naturally for an extended period of time in asymptomatic pitchers, but it is unclear how to best control these deficits between pitching sessions...
November 3, 2016: American Journal of Sports Medicine
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