Abstract:
:A mathematical model was used to investigate the dynamic behaviour of an above-knee (AK) prosthesis in the swing phase and to analyse the influence of mass and mass distribution on the maximal stump load and the required energy. The model consists of a bondgraph model of the prosthesis and a "walking" model which predicts the walking velocity, step length and the femoral trajectory. Equipment was developed to measure the inertial properties of the components of the prosthesis. Through computer simulation, stickdiagrams of the swing phase and graphs of the variation with time of the hip and stump forces were obtained. It was found that for a normal AK prosthesis with a knee-lock mechanism the axial stump load is greatest at the beginning and at the end of the swing phase. At a walking velocity of 5 km/hr the maximum axial stump load amounts to 2.1 times the static weight of the prosthesis. The maximum axial stump force appeared to be almost directly proportional to the total mass of the prosthesis but independent of the mass distribution. The required energy also increased with the mass of the prosthesis but is dependent on mass distribution. Because of their comparable weights the influence of the shoe is almost equal to the influence of the prosthetic foot. Thus lightweight shoes should be used with lightweight prosthetic feet in order to add to their advantages.
journal_name
Prosthet Orthot Intjournal_title
Prosthetics and orthotics internationalauthors
Van de Veen PG,Van der Tempel W,De Vreiss Jdoi
10.3109/03093648709078180subject
Has Abstractpub_date
1987-08-01 00:00:00pages
65-70issue
2eissn
0309-3646issn
1746-1553journal_volume
11pub_type
杂志文章abstract:BACKGROUND:After amputation, the brain is known to be reorganized especially in the primary motor cortex. We report a case to show changes in the corticospinal tract in a patient with serial bilateral transtibial amputations using diffusion tensor imaging. Case Description and Methods: A 78-year-old man had a transtibi...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章,评审
doi:10.1177/0309364616684216
更新日期:2017-10-01 00:00:00
abstract::Wheelchair prescription is complex with thousands of choices and options. Theoretically, a higher quality or innovative wheelchair that is appropriately matched to the user and their unique needs will increase participation. It is well accepted that there is an alarmingly high incidence of carpal tunnel syndrome, and ...
journal_title:Prosthetics and orthotics international
pub_type: 历史文章,杂志文章
doi:10.1080/03093640903082126
更新日期:2009-09-01 00:00:00
abstract::Silicone rubbers and casting tapes individually have previously been used in the manufacture of sockets (Swanson, 1972; Sweitzer, 1973; Ruder, 1977; Graves, 1980; Aqualite, 1982). The authors believe that the present combination of these materials to manufacture a directly moulded socket with a complete silicone rubbe...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093648509164717
更新日期:1985-08-01 00:00:00
abstract:BACKGROUND:Ankle-foot orthoses are known to have a generally positive effect on gait in stroke, however the specifc type of AFO and the time point at which it is provided are highly variable in the currently available literature. OBJECTIVE:The objective was to determine the immediate spatiotemporal and kinematic effec...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364614538090
更新日期:2015-12-01 00:00:00
abstract::In a prospective study of polypropylene (PP) prostheses for trans-tibial amputees four different modified SACH feet were used. These are identified as: 1. BAVI from the national manufacturer of componentry in BaVi; 2. HCMC a design initiated by the International Committee of the Red Cross (ICRC) together with the Army...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649909071641
更新日期:1999-12-01 00:00:00
abstract::The Stanmore-Kingston Splat is a graphical display of the goals and achievements of amputee rehabilitation patients using the Locomotor Capability Index. The chart is in a radial polygram form with the sectors coloured and shaded. Three scores can be shown: The patient's capability at delivery of the prosthesis, the g...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1080/03093640600818863
更新日期:2006-12-01 00:00:00
abstract::Telehealth has the potential to be a valuable tool for technical and clinical support of computer controlled prosthetic devices. This pilot study examined the use of Internet-based, desktop video conferencing for remote configuration of the Otto Bock C-Leg. Laboratory tests involved connecting two computers running Mi...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1080/03093640208726638
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND:Custom-contoured wheelchair seating lowers risk of pressure injury and postural deterioration while custom-contoured wheelchair seating lowers risk of pressure injury and postural deterioration while increasing the stability and functional activity of the wheelchair occupant. Producing custom-contoured seati...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章,评审
doi:10.1177/0309364619836028
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND AND AIM:DEKA Integrated Solutions Corp. (DEKA) was charged by the Defense Advanced Research Project Agency to design a prosthetic arm system that would be a dramatic improvement compared with the existing state of the art. The purpose of this article is to describe the two DEKA Arm prototypes (Gen 2 and Gen ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364613506913
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Contractures of Achilles tendons and gastrocnemius muscle deteriorate the performance in daily living activities of patients with neuromuscular diseases. Ankle-foot orthoses help to prevent the progression of deformities and to obtain optimal position of the joints to support standing and walking. OBJECTIVE...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364613486915
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:Prosthetic gait increases demands on stability. Some variability measures can be used to investigate the stability of movement for prosthetic feet. OBJECTIVES:The purpose of this study was to determine the influence of the prosthetic foot on ground reaction force variability for transtibial amputee gait. S...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364612439572
更新日期:2012-06-01 00:00:00
abstract::Patients with osteoarthritis of the hip were treated with a conservative therapy of heel lifting. Orthoses were applied on 35 hips in 33 subjects and the cases were followed for 23 months on average. Dramatic pain relief was reported, but the time required to reduce or completely relieve pain increased according to th...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649709164544
更新日期:1997-08-01 00:00:00
abstract:BACKGROUND:Knee osteoarthritis has commonly been associated with a symptom of pain resulting in an inter-limb weight-bearing asymmetry during functional tasks. Patellar tendon strap is one of the non-pharmacologic interventions to alleviate knee pain. OBJECTIVES:To investigate the immediate effect of a patellar tendon...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364615612251
更新日期:2016-12-01 00:00:00
abstract:BACKGROUND::Ambulation with a prosthesis is the ultimate goal of rehabilitation for a person with a major lower limb amputation. Due to challenges with prosthetic service delivery in rural settings, many patients with amputations are not benefitting from prosthetic interventions. Inaccessibility to prosthetic services ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364618792730
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Individuals with transtibial amputation are at increase risk of falling. The absence of an ankle joint and the associated musculature in these individuals can reduce clearance between the prosthetic foot and ground during the swing phase of gait, which may increase the risk of stumbling and in turn falling. ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364616650085
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:Lower extremity amputee outcome measures assess basic mobility. The Comprehensive High-Level Activity Mobility Predictor was developed to assess high-level mobility. Validity evidence was collected in military men with traumatic lower extremity amputations. This study examines its validity in a...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364619887559
更新日期:2020-04-01 00:00:00
abstract:BACKGROUND:Prosthetic alignment is usually unchanged once optimized. However, a previous study indicated that long-distance walking significantly altered gait patterns, suggesting some alignment adjustments after walking are required. This study investigated the effects of alignment changes (by inserting a heel lift) o...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364612461521
更新日期:2013-08-01 00:00:00
abstract::Longitudinal ulnar deficiency, whose detailed anatomy is varied, is often accompanied by other abnormalities and appears as part of several syndromes. The history of its classification is reviewed, and the treatments, which have been offered, described. Follow-up of a series shows that the function achieved is good an...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649109164643
更新日期:1991-08-01 00:00:00
abstract::The surgical and prosthetic treatment of longitudinal lower limb deficiency is described and discussed, in the light of cultural and social requirements. Those with upper limb deficiencies are not fitted with prostheses. ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649109164653
更新日期:1991-08-01 00:00:00
abstract::This study investigated the validity of post-amputation application of removable rigid dressings (RRDs) for trans-tibial amputees, regarding preparation for prosthetic management and key rehabilitation timelines. It was hypothesised that the use of RRDs would result in faster preparation of the residual limb for prost...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1080/03093640802016795
更新日期:2008-06-01 00:00:00
abstract::A new type of above-knee socket has been designed to provide total surface support and to dispense with ischial bearing as the primary weight bearing area. The socket is based upon the hypothesis that if the soft tissues of an above-knee stump are adequately supported in a suitably shaped container they will behave un...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093647909103096
更新日期:1979-12-01 00:00:00
abstract::This review presents an analytical and comparative survey of upper limb prosthesis acceptance and abandonment as documented over the past 25 years, detailing areas of consumer dissatisfaction and ongoing technological advancements. English-language articles were identified in a search of Ovid, PubMed, and ISI Web of S...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章,评审
doi:10.1080/03093640600994581
更新日期:2007-09-01 00:00:00
abstract::The i-LIMB hand is a novel upper limb myoelectric prosthetic hand with several joints in the fingers and thumb. This study aimed to determine whether this new device had more functionality than a more conventional myoelectric prosthetic hand with only a single joint between the thumb and two fingers. Therefore, a 45-y...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093641003767207
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:Prosthetic foot prescription guidelines lack scientific evidence and are concurrent with an amputee's concurrent with an amputee's Medicare Functional Classification Level (K-Level) and categorization of prosthetic feet. OBJECTIVE:To evaluate the influence of gait training and four categories of prosthetic ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章,随机对照试验
doi:10.1177/0309364612473501
更新日期:2013-10-01 00:00:00
abstract::This contribution presents the case histories of two patients who underwent limb amputation. One patient suffered from psoriasis prior to the surgery and the second developed psoriatic lesions post surgery. Both patients were provided with a prosthesis and despite the multiple cutaneous complications of the psoriasis ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093640309167979
更新日期:2003-04-01 00:00:00
abstract::If below-knee amputation is impossible, knee disarticulation should be considered before above-knee amputation, regardless of age and etiology. Knee disarticulation which leaves the femur and patella untoched offers many advantages. The surgical technique is simple and non-traumatic since no bone or muscle tissue is t...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093647909164695
更新日期:1979-04-01 00:00:00
abstract:BACKGROUND:In principle, lower limb bone-anchored prostheses could alleviate expenditure associated with typical socket manufacturing and residuum treatments due to socket-suspended prostheses. OBJECTIVE:This study reports (a) the incremental costs and (b) heath gain as well as (c) cost-effectiveness of bone-anchored ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364617740239
更新日期:2018-06-01 00:00:00
abstract:BACKGROUND AND AIM:Stair ascent is a particularly challenging task for transfemoral amputees. The aim of this clinical note was to describe the kinematic features of foot clearance in transfemoral amputee who can ascend stairs using a step-over-step strategy. TECHNIQUE:The marker trajectories of the first metatarsopha...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364613497049
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:The role of the prosthetist has changed substantially over the past century. In the transition from 'limb-maker' to 'clinician', the expectations of prosthetics professionals have also changed. OBJECTIVES:To develop and test a new scale capable of assessing and comparing current expectations of the roles of...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364617698519
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND::Orthotic treatment for adolescent idiopathic scoliosis is a mainstay in nonoperative treatment to prevent progressive spinal deformity. OBJECTIVE::To determine the effectiveness of the Providence orthosis in the treatment of adolescent idiopathic scoliosis. STUDY DESIGN::Retrospective review. METHODS::Pa...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364618792727
更新日期:2019-04-01 00:00:00