Abstract:
:Recent work suggests that a prosthetic ankle-foot component's roll-over shape - the effective rocker it conforms to between initial contact and opposite initial contact (the 'roll-over' interval of walking) - is closely linked to its final alignment in the prosthesis (as determined by a skilled prosthetist using heuristic techniques). If true, this information may help to determine the appropriate alignment for a lower limb prosthesis before it is built, or a priori. Knowledge is needed for future models that will incorporate the roll-over shape including the relative effect of alignment on the roll-over shape's radius of curvature and arc length. The purpose of this study was to evaluate the hypotheses that: (i) Changes in prosthesis alignment alter the position and orientation of a foot's roll-over shape in prosthesis-based coordinates, and (ii) these changes occur without changing the radius of curvature or arc length of the roll-over shape. To examine the hypotheses, this study examined the effects of nine alignment settings on the roll-over shapes of two prosthetic feet. The idea that alignment changes move and rotate roll-over shapes of prosthetic feet in prosthesis coordinates is supported by this work, but the hypothesis that the radius of curvature and arc length do not change for different alignments is not strongly supported by the data. A revised approach is presented that explains some of the changes to the roll-over shape parameters due to changes in rotational alignment.
journal_name
Prosthet Orthot Intjournal_title
Prosthetics and orthotics internationalauthors
Hansen Adoi
10.1080/03093640802366158subject
Has Abstractpub_date
2008-12-01 00:00:00pages
390-402issue
4eissn
0309-3646issn
1746-1553pii
905079363journal_volume
32pub_type
杂志文章abstract::The Mobile Arm Support, conceived and researched by Dr. Radulovic, is intended for the use of patients whose arm is afflicted. The support consists of a supporting harness, an articulated splint on which the arm is fixed and a pneumatic system of elevation that counterbalances the weight of the arm. Its originality li...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093648009164573
更新日期:1980-08-01 00:00:00
abstract::A keen skier who is a trans-tibial and trans-radial quadrilateral amputee sought an improved adaptation for skiing from the Rehabilitation Engineering Service in Edinburgh. The unpredictable nature of the bending moments and loads that can be imposed on the prostheses during skiing raised concern about the suitability...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093640409167927
更新日期:2004-04-01 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:BACKGROUND:During functional wheelchair movement there are several types of stroke pattern that a manual wheelchair user (MWCU) can utilize in order to propel. OBJECTIVES:To examine the biomechanical differences between disabled (WCU) and able-bodied (NWCU) children whilst taking part in functional activities at the C...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364612448807
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:The devastating earthquake in Sichuan in 2008 has left many adolescent amputees. However, little research has been focused on the adolescent amputees who have high potential to return to premorbid activity level. OBJECTIVES:To investigate daily step activities and prosthesis-related quality of life of the a...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364614556837
更新日期:2016-02-01 00:00:00
abstract::Modern sockets for lower limb amputees utilize total contact and distribute some weight on the stump end. Its tolerance to bear weight varies but is better after joint disarticulation, however, systematic measures have been missing. Different levels, indications, shapes etc. were analysed with 102 measurements in 69 p...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093648209166575
更新日期:1982-12-01 00:00:00
abstract::The purpose of this study was to investigate the effects of a 4 week physiotherapy programme on patients who were given a spinal orthosis for neuromuscular scoliosis. This study was planned as a single group pre- and post-intervention repeated measures design. All patients were given a polyethylene spinal orthosis wit...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093640409167759
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND AND AIM:It is difficult to measure foam model shapes using contact digitizers because the stylus contact tends to get stuck in the soft foam. The aim of this paper is to describe a technique to overcome this challenge and to assess its effect on digitizer error. TECHNIQUE:A controlled laboratory study was c...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364610394478
更新日期:2011-06-01 00:00:00
abstract::This paper discusses the place of rotational moulding in the provision of prosthetic shanks and shank sections. It covers the selection of thermoplastic material, the moulding conditions and their automation in a machine process, and the development of a suitable range of moulds. Also covered is the question of interf...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093648509164822
更新日期:1985-04-01 00:00:00
abstract:BACKGROUND:Many individuals with cerebral palsy wear ankle foot orthoses during daily life. Orthoses influence joint motion, but how they impact muscle remains unclear. In particular, the gastrocnemius is commonly stiff in cerebral palsy. Understanding whether orthoses stretch or shorten this muscle during daily life m...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364616665731
更新日期:2017-06-01 00:00:00
abstract:BACKGROUND:Step counts, obtained via activity monitors, provide insight into activity level in the free-living environment. Accuracy assessments of activity monitors are limited among individuals with lower-limb amputations. OBJECTIVES:(1) To evaluate the step count accuracy of both monitors during forward-linear and ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364618767138
更新日期:2018-10-01 00:00:00
abstract::Initial analyses from a survey of people with unilateral upper limb congenital absence registered with the Cambridge Disablement Services Centre (DSC) indicated differences related to laterality and gender. A postal survey of all DSCs in the UK was conducted and support for these findings was provided from the analysi...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649809164487
更新日期:1998-12-01 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::The aim of the present study was to compare sockets for below-knee (BK) prostheses made by Computer Aided Design-Computer Aided Manufacture (CAD-CAM) to those made by hand. The patients in the study were provided with two prostheses each, which apart from the sockets, were identical. One socket was made by the CAD-CAM...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093648909079405
更新日期:1989-04-01 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:The functional performance of currently available body-powered prostheses is unknown. OBJECTIVE:The goal of this study was to objectively assess and compare the functional performance of three commonly used body-powered upper limb terminal devices. STUDY DESIGN:Experimental trial. METHODS:A total of 21 ab...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364614554030
更新日期:2016-02-01 00:00:00
abstract::This study examines the evidence which supports the importance of maintaining relative abduction for effective reciprocal walking in high level paraplegic patients. In comparisons of orthoses, where this can only be achieved mechanically, those with higher lateral rigidity consistently showed greater levels of walking...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649509080352
更新日期:1995-08-01 00:00:00
abstract:BACKGROUND:Relatively little is known about spine during gait compared to movement analysis of the lower extremities. The trunk is often regarded and analysed as a single rigid segment and there is a paucity of information on inter-segmental movement within the spine and its relationship to pelvis and lower limbs. OBJ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364615579319
更新日期:2016-10-01 00:00:00
abstract::In the present study the psychophysical detection threshold levels mechanical stimulation of 32 prosthetic limbs were determined. Prosthetic limbs were anchored to the bone by means of an implant (n=17) or supported by a socket enclosing the amputation stump (n=15). Detection threshold levels were assessed for pressur...
journal_title:Prosthetics and orthotics international
pub_type: 临床试验,杂志文章
doi:10.1080/03093640008726536
更新日期:2000-08-01 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::This study was performed to investigate the efficacy of prosthetic rehabilitation in children with congenital malformations, also to determine whether there were any factors related to family history and pregnancy which could have affected the formation of such deficiencies. Twenty-five (25) limb deficient children we...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649909071624
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:Few studies have explored the effects of exercise on gait performance in people with lower limb amputations. OBJECTIVES:To (1) summarize the effects of exercise programs on gait performance and (2) assess the overall quality of the evidence for adults ambulating with leg prostheses. STUDY DESIGN:Systematic...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章,评审
doi:10.1177/0309364614546926
更新日期:2016-02-01 00:00:00
abstract:BACKGROUND:The important purpose of a powered gait orthosis is to provide active joint movement for patients with spinal cord injury. OBJECTIVES:The aim of this study was to clarify the effect of a powered gait orthosis on the kinematics and temporal-spatial parameters in paraplegics with spinal cord injury. STUDY DE...
journal_title:Prosthetics and orthotics international
pub_type: 临床试验,杂志文章
doi:10.1177/0309364612463164
更新日期:2013-08-01 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::In the inaugural edition of Prosthetics and Orthotics International in 1977, Dr Sidney Fishman identified the Psychological Sciences as one of six indispensable areas of skill and knowledge in professional prosthetic-orthotic practice. Since then, there have been substantial changes and developments in the complexity ...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364620967780
更新日期:2020-12-01 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::An analysis of 200 patients with congenital limb deficiency who attended the Artificial Limb Centre, Pune from January 1984 to April 1990 is presented. This group is representative of the congenital limb deficient population of the country. The commonest deficiencies were transverse phalangeal total/partial deficiency...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.3109/03093649409164402
更新日期:1994-12-01 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: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:BACKGROUND:Diabetes mellitus is a leading cause of major lower extremity amputation. OBJECTIVE:To examine the influence of gender, level of amputation and diabetes mellitus status on being fit with a prosthetic limb following lower extremity amputation for peripheral arterial disease. STUDY DESIGN:Retrospective analy...
journal_title:Prosthetics and orthotics international
pub_type: 杂志文章
doi:10.1177/0309364616628341
更新日期:2017-02-01 00:00:00