Read by QxMD icon Read


Luca Lonini, Aakash Gupta, Konrad Kording, Arun Jayaraman, Luca Lonini, Aakash Gupta, Konrad Kording, Arun Jayaraman, Luca Lonini, Konrad Kording, Arun Jayaraman, Aakash Gupta
Machine learning allows detecting specific physical activities using data from wearable sensors. Such a quantification of patient mobility over time promises to accurately inform clinical decisions for physical rehabilitation. There are two strategies of setting up the machine learning problem: detect one patient's activities using data from the same patient (personal model) or detect their activities using data from other patients (global model), and we currently do not know if personal models are necessary...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Andrew Herbert-Copley, Edward D Lemaire, Natalie Baddour, Andrew Herbert-Copley, Edward D Lemaire, Natalie Baddour, Andrew Herbert-Copley, Natalie Baddour, Edward D Lemaire
Knee-ankle-foot orthoses (KAFOs) are full leg braces for individuals with knee extensor weakness, designed to support the person during weight bearing activities by preventing knee flexion. KAFOs typically result in an unnatural gait pattern and are primarily used for level ground walking. A novel variable resistance orthotic knee joint, the Ottawalk-Variable Speed (OWVS), was designed to address these limitations. This paper presents a pilot test to evaluate the OWVS functional performance during walking and stair descent...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Fabrizio Patane, Stefano Rossi, Fausto Del Sette, Juri Taborri, Paolo Cappa
This paper presents the modular design and control of a novel compliant lower limb multi-joint exoskeleton for the rehabilitation of ankle knee mobility and locomotion of pediatric patients with neurological diseases, such as Cerebral Palsy (CP). The device consists of an untethered powered knee-ankle-foot orthosis (KAFO), addressed as WAKE-up (Wearable Ankle Knee Exoskeleton), characterized by a position control and capable of operating synchronously and synergistically with the human musculoskeletal system...
January 11, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Ali Mojaver, Mokhtar Arazpour, Gholamreza Aminian, Monireh Ahmadi Bani, Mahmood Bahramizadeh, Guive Sharifi, Arash Sherafatvaziri
BACKGROUND: Knee-ankle-foot orthoses (KAFOs) are used by people with poliomyelitis to ambulate. Whist advances in orthotic knee joint designs for use in KAFOs such the provision of stance control capability have proven efficacy, little attention has been paid to shoe adaptations which may also improve gait. AIM: The aim of this study was to evaluate the alteration to the kinematics and temporal-spatial parameters of gait caused by the use of heel-to-toe rocker-soled footwear when ambulating with KAFOs...
December 16, 2016: Disability and Rehabilitation. Assistive Technology
Josina C Maas, Annet J Dallmeijer, Bodil Y Oudshoorn, Eline A M Bolster, Peter A Huijing, Richard T Jaspers, Jules G Becher
: Purpose state: Orthotic wearing time may be an important confounder in efficacy studies of treatment in children with spastic cerebral palsy (SCP). Most studies measure parent-reported wearing time (WTparent) with questionnaires, but it is questionable whether this yields valid results. This study aims to compare WTparent with objectively measured wearing time (WTobj) in children with SCP receiving orthotic treatment. METHOD: Eight children with SCP participated in this observational study...
December 7, 2016: Disability and Rehabilitation
Christian Fisahn, Mirko Aach, Oliver Jansen, Marc Moisi, Angeli Mayadev, Krystle T Pagarigan, Joseph R Dettori, Thomas A Schildhauer
Study Design Systematic review. Clinical Questions (1) When used as an assistive device, do wearable exoskeletons improve lower extremity function or gait compared with knee-ankle-foot orthoses (KAFOs) in patients with complete or incomplete spinal cord injury? (2) When used as a rehabilitation device, do wearable exoskeletons improve lower extremity function or gait compared with other rehabilitation strategies in patients with complete or incomplete spinal cord injury? (3) When used as an assistive or rehabilitation device, are wearable exoskeletons safe compared with KAFO for assistance or other rehabilitation strategies for rehabilitation in patients with complete or incomplete spinal cord injury? Methods PubMed, Cochrane, and Embase databases and reference lists of key articles were searched from database inception to May 2, 2016, to identify studies evaluating the effectiveness of wearable exoskeletons used as assistive or rehabilitative devices in patients with incomplete or complete spinal cord injury...
December 2016: Global Spine Journal
Kanan Yatsuya, Satoshi Hirano, Eiichi Saitoh, Shigeo Tanabe, Hirotaka Tanaka, Masayuki Eguchi, Masaki Katoh, Yasuhiro Shimizu, Akito Uno, Hitoshi Kagaya
OBJECTIVE: To compare the energy efficiency of Wearable Power-Assist Locomotor (WPAL) with conventional knee-ankle-foot orthoses (MSH-KAFO) such as Hip and Ankle Linked Orthosis (HALO) or Primewalk. STUDY DESIGN: Cross over case-series. SETTING: Chubu Rosai Hospital, Aichi, Japan, which is affiliated with the Japan Organization of Occupational Health and Safety. METHODS: Six patients were trained with MSH-KAFO (either HALO or Primewalk) and WPAL...
October 17, 2016: Journal of Spinal Cord Medicine
Joanne O'Connor, Dorothy McCaughan, Catriona McDaid, Alison Booth, Debra Fayter, Roccio Rodriguez-Lopez, Roy Bowers, Lisa Dyson, Cynthia P Iglesias, Simon Lalor, Rory J O'Connor, Margaret Phillips, Gita Ramdharry
BACKGROUND: Patients who have knee instability that is associated with neuromuscular disease (NMD) and central nervous system (CNS) conditions can be treated using orthoses, such as knee-ankle-foot orthoses (KAFOs). OBJECTIVES: To assess existing evidence on the effectiveness of orthoses; patient perspectives; types of orthotic devices prescribed in the UK NHS; and associated costs. METHODS: Qualitative study of views of orthoses users - a qualitative in-depth interview study was undertaken...
July 2016: Health Technology Assessment: HTA
Jung-Hwan Kim, Sang-Goo Ji, Kang-Jae Jung, Jae-Hyung Kim
A 54-year-old man with poliomyelitis had been using a conventional, passive knee-ankle-foot orthosis (KAFO) with a drop ring lock knee joint for about 40 years. A stance control KAFO (SCKAFO) with an electromagnetically controlled (E-MAG) knee joint system was prescribed. To correct his gait pattern, he also underwent rehabilitation therapy, which included muscle re-education, neuromuscular electrical stimulation, strengthening exercises for the lower extremities, and balance training twice a week for about 4 months...
April 2016: Annals of Rehabilitation Medicine
Eva Pröbsting, Andreas Kannenberg, Britta Zacharias
BACKGROUND: There are clear indications for benefits of stance control orthoses compared to locked knee ankle foot orthoses. However, stance control orthoses still have limited function compared with a sound human leg. OBJECTIVES: The aim of this study was to evaluate the potential benefits of a microprocessor stance and swing control orthosis compared to stance control orthoses and locked knee ankle foot orthoses in activities of daily living. STUDY DESIGN: Survey of lower limb orthosis users before and after fitting of a microprocessor stance and swing control orthosis...
February 2017: Prosthetics and Orthotics International
S Baliga, T Mcmillan, A Sutherland, D Sharan
Poliomyelitis is caused by an enterovirus infection of the anterior horn cells in the spinal cord. Up to 40% of survivors recover full muscle strength, however 60-90% are left with varying degrees of residual paralysis, where the patient suffers from cramping myalgia and lower motor neuron pattern weakness. This study aimed to identify and quantify, in terms of prevalence and severity of the types of joint deformities encountered in polio sufferers. It also aimed to assess the disability caused by such problems...
2015: Open Orthopaedics Journal
Shinichiro Maeshima, Hideto Okazaki, Sayaka Okamoto, Shiho Mizuno, Naoki Asano, Hirofumi Maeda, Mitsuko Masaki, Hiroshi Matsuo, Tetsuya Tsunoda, Shigeru Sonoda
BACKGROUND: We investigated differences in factors affecting judgments regarding the creation of new adjustable posterior strut knee-ankle-foot orthoses (APS-KAFO) and knee-ankle-foot orthoses with metal struts (traditional KAFO) for hemiplegic stroke patients for whom KAFO were created in rehabilitation wards. METHODS: Subjects were 50 patients with hemiplegia due to new-onset stroke (cerebral infarction: n = 25, cerebral hemorrhage: n = 25) who were prescribed KAFO...
June 2015: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Feng Tian, Mohamed Samir Hefzy, Mohammad Elahinia
Knee-ankle-foot orthoses (KAFOs) are used to assist in ambulation. The purpose of this paper is to review existing KAFO designs which can be grouped into passive KAFOs, stance control (SC) KAFOs, and dynamic KAFOs. The conventional passive KAFOs do not provide any active control for knee motions. SCKAFOs lock the knee joint during the stance phase and allow free rotations during the swing phase. Some SCKAFOs switch between the stance and swing phases using body posture, while others use some kind of a control system to perform this switch...
February 2015: Annals of Biomedical Engineering
Malathy Appasamy, Michelle E De Witt, Nisha Patel, Nancy Yeh, Ona Bloom, Anthony Oreste
OBJECTIVE: To report our clinical experience and propose a biomechanical factor-based treatment strategy for improvement of genu recurvatum (GR) to reduce the need for knee-ankle-foot orthosis (KAFO) or surgical treatment. DESIGN: Case series. SETTING: Outpatient clinic of a Department of Physical Medicine and Rehabilitation in an academic medical center. SUBJECTS AND INTERVENTIONS: Adult subjects (n = 22) with hemiparesis and GR who received botulinum injections alone or in combination with multiple types of orthotic interventions that included solid ankle-foot orthosis (AFO) ± heel lift, hinged AFO with an adjustable posterior stop ± heel lift, AFO with dual-channel ankle joint ± heel lift, or KAFO with offset knee joint...
February 2015: PM & R: the Journal of Injury, Function, and Rehabilitation
Carlos Galván Duque-Gastélum, Ivett Quiñones-Uriostegui, Felipe Mendoza, Gerardo Rodríguez
Ortheses are devices that assist in the function of the limbs, contributing with stability and support to the involved joints. KAFOs (knee-ankle-foot orthosis) are mainly indicated for people with muscular or neural diseases that affect the lower limbs. The actual designs of knee hinges for KAFOs compromise the stability and mobility of the limb. In this work, it was tested the feasibility of a design for a knee hinge for KAFO that should be able to modify its mechanical resistance depending on the gait phase...
July 2014: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
Mohammad Taghi Karimi, Francis Fatoye
BACKGROUND: Spinal cord injury (SCI) influences a person's ability to stand and walk. Various orthoses have been developed to solve these standing and walking problems, however, patients still experience high energy consumption during walking and high forces on the upper limbs. A new reciprocal gait orthosis (RGO) was designed to address these problems. The aim of this study was to evaluate the performance of the new orthosis design with paraplegic subjects. METHOD: Three paraplegic subjects with the lesion at level T12 and three able-bodied subjects were included in this study...
2016: Disability and Rehabilitation. Assistive Technology
Marie Eriksson, Li Villard, Asa Bartonek
PURPOSE: Excessive movements during walking have been observed by gait analysis in children with arthrogryposis (AMC) using orthoses compared to children using only shoes. The aim of this study was to evaluate energy expenditure and functional exercise capacity in children with AMC. METHODS: Twenty-four children with AMC and 25 typically developing (TD) children underwent oxygen measurement and the 6-minute walk test (6MWT). Children were divided into AMC1 using knee-ankle-foot orthoses with locked knee joints (KAFO-LK); AMC2 KAFOs with open knee joints (KAFO-O) or ankle-foot orthoses (AFO); and AMC3 using shoes...
August 2014: Journal of Children's Orthopaedics
J Perry, D Clark
Muscle weakness resulting from the combined effects of acute and late motor neuron pathology is the basic cause of post-polio dysfunction. Through their normal sensation and moter control, post-polio patients minimize their disability by useful substitutions. Orthoses are needed only when these substitutions either are inadequate or result in muscle or joint overuse. The areas most commonly showing late disability are the lower extremities, shoulders and low-back. In the lower extremities, the major muscle groups are the hip extensors and abductors, the knee extensors (quadriceps), ankle plantar flexors and dorsi flexors...
1997: NeuroRehabilitation
Asli Caliskan Uckun, Canan Celik, Halil Ucan, Nilufer Kutay Ordu Gokkaya
OBJECTIVE: The aim of the study was to compare the effects of lower extremity orthoses on energy expenditure in patients with cerebral palsy (CP). METHODS: We included 48 children with CP using lower extremity orthosis. Energy expenditures determined based on heart rate, yielded an energy expenditure index (EEI) with and without orthosis during walking. RESULTS were compared statistically between orthosis groups (solid polyethylene ankle foot orthosis (PAFO), articulated PAFO, ground reaction foot orthosis (GRAFO), plastic and metallic knee-ankle-foot-orthosis (KAFO), and metallic AFO)...
December 2014: Developmental Neurorehabilitation
Ryan J Farris, Hugo A Quintero, Spencer A Murray, Kevin H Ha, Clare Hartigan, Michael Goldfarb
This paper presents an assessment of a lower limb exoskeleton for providing legged mobility to people with paraplegia. In particular, the paper presents a single-subject case study comparing legged locomotion using the exoskeleton to locomotion using knee-ankle-foot orthoses (KAFOs) on a subject with a T10 motor and sensory complete injury. The assessment utilizes three assessment instruments to characterize legged mobility, which are the timed up-and-go test, the Ten-Meter Walk Test (10 MWT), and the Six-Minute Walk Test (6 MWT), which collectively assess the subject's ability to stand, walk, turn, and sit...
May 2014: IEEE Transactions on Neural Systems and Rehabilitation Engineering
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"