scholarly journals Comparative study of anterior support ankle foot orthosis and posterior ankle foot orthosis in foot drop patients

2019 ◽  
Vol 6 (6) ◽  
pp. 1924
Author(s):  
Harleen Uppal ◽  
Gita Handa ◽  
U. Singh ◽  
Sanjay Wadhwa ◽  
S. L. Yadav
Keyword(s):  
Foot Drop ◽  
P Value ◽  
Metabolic Efficiency ◽  
Ankle Foot Orthosis ◽  
Gait Parameters ◽  
Recent Approach ◽  
Subjective Preference ◽  
Rate Of Oxygen Consumption ◽  
Anterior Support ◽  
Foot Orthosis

Background: Anterior Support Ankle Foot Orthosis (A-AFO) is a fairly recent approach. There is dearth of studies relating to comparison of metabolic efficiency of A-AFO and P-AFO. Objective was to study the efficacy of A-AFO compared to P-AFO in foot drop patients, using gait and metabolic analysis.Methods: It was a cross over study, included foot drop patients who could walk with/ without orthosis. Patients having spasticity more than grade 2 (Modified Ashworth Scale) were excluded. The metabolic parameters measured were volume of Oxygen consumed at Standard Temperature and Pressure in l/min (VO2), Dry in l/min, Rate of Oxygen consumption (MET), Volume of Carbon dioxide produced in litre/min (VCO2). Along with various gait parameters, questionnaire about patient’s preference after 4 weeks was also incorporated.Results: A-AFO was significantly better than P-AFO in terms of VO2 and VCO2 (p value = 0.02 and 0.009 respectively) as well as in terms of subjective preference.Conclusions: A-AFO is comparable to P-AFO in terms of energy efficiency, gait parameters and subjective preference, hence should also be prescribed.

scholarly journals Comparison of walking energy cost between an anterior and a posterior ankle-foot orthosis in people with foot drop

2014 ◽  
Vol 46 (8) ◽  
pp. 768-772 ◽  
Author(s):  
F Menotti ◽  
L Laudani ◽  
A Damiani ◽  
P Orlando ◽  
A Macaluso
Keyword(s):  
Energy Cost ◽  
Foot Drop ◽  
Ankle Foot Orthosis ◽  
Foot Orthosis ◽  
Walking Energy Cost

Immediate Effects of the Dorsiflexion Angle of Hinged Ankle-foot Orthosis on the Spatiotemporal Gait Parameters of Children With Spastic Cerebral Palsy

2021 ◽  
Author(s):  
IlHyun Son ◽  
GyuChang Lee
Keyword(s):  
Cerebral Palsy ◽  
Stride Length ◽  
Step Length ◽  
Gait Velocity ◽  
Spastic Cerebral Palsy ◽  
Spastic Diplegia ◽  
Ankle Foot Orthosis ◽  
Gait Parameters ◽  
Children With Cerebral Palsy ◽  
Foot Orthosis

Abstract Background: It has been reported the effects of a hinged ankle-foot orthosis on the gait ability of children with cerebral palsy. However, no studies investigated the effects of the dorsiflexion angle of the hinged ankle-foot orthosis on the spatiotemporal gait parameters of children with cerebral palsy. This study aimed to investigate the immediate effects of a 10° dorsiflexion inducing ankle-foot orthosis the spatiotemporal gait parameters of children with spastic diplegia compared to barefoot and a hinged ankle-foot orthosis.Methods: This study was cross-over design. 10 children with spastic diplegia were walked with barefoot, a hinged ankle-foot orthosis, and a 10° dorsiflexion inducing ankle-foot orthosis. GAITRite was used to collect the spatiotemporal gait parameters including gait velocity, cadence, step length, stride length, single leg support, and double leg support. Results: It showed that a 10° dorsiflexion inducing ankle-foot orthosis significantly improved the gait velocity, cadence, step length, stride length, single leg support, and double leg support than barefoot and a hinged ankle-foot orthosis (p<.05). Conclusion: The results of this study implied that a 10° dorsiflexion inducing ankle-foot orthosis could improve the gait ability of children with spastic diplegia more than barefoot or a hinged ankle-foot orthosis. High quality future studies will need to examine the effects of hinged ankle-foot orthosis on gait ability according to dorsiflexion angles.

Customized design and additive manufacturing of kids’ ankle foot orthosis

2020 ◽  
Vol 26 (10) ◽  
pp. 1677-1685 ◽  
Author(s):  
Harish Kumar Banga ◽  
Parveen Kalra ◽  
Rajendra M. Belokar ◽  
Rajesh Kumar
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Gait Cycle ◽  
Foot Drop ◽  
Human Gait ◽  
Content Type ◽  
Ankle Foot Orthosis ◽  
New Material ◽  
Foot Orthosis

Purpose The purpose of this study is improvement of human gait by customized design of ankle foot orthosis (AFO). An has been the most frequently used orthosis in children with cerebral palsy. AFOs are designed to boost existing features or to avoid depression or traumatize muscle contractures. The advantages of AFO’s utilized for advancement in human walk attributes for the improvement in foot deformities patients or youngsters with spastic loss of motion. In this research on the customized design of AFO's to improve gait, there are limitations during walking of foot drop patients. In children with foot drops, specific AFOs were explicitly altered to improve parity and strength which are beneficial to walking positions. Design/methodology/approach This study proposes the customized design of AFOs using computerized and additive manufacturing for producing advances to alter the design and increase comfort for foot drop patients. Structuring the proposed design fabricated by using additive manufacturing and restricted material, the investigation was finalized at the Design Analysis Software (ANSYS). The system that performs best under investigation can additionally be printed using additive manufacturing. Findings The results show that the customized design of AFOs meets the patient’s requirements and could also be an alternative solution to the existing AFO design. The biomechanical consequences and mechanical properties of additive manufactured AFOs have been comparable to historically synthetic AFOs. While developing the novel AFO designs, the use of 3D printing has many benefits, including stiffness and weight optimization, to improve biomechanical function and comfort. To defeat the issues of foot drop patients, a customized AFO is used to improve the human gait cycle with new material and having better mechanical properties. Originality/value This research work focuses on the biomechanical impacts and mechanical properties of customized 3D-printed AFOs and compares them to traditionally made AFOs. Customized AFO design using 3D printing has numerous potential advantages, including new material with lightweight advancement, to improve biomechanical function and comfort. Normally, new applications mean an incremental collection of learning approximately the behavior of such gadgets and blending the new design, composite speculation and delivered substance production. The test results aim to overcome the new AFO structure issues and display the limited components and stress examination. The outcome of the research is the improved gait cycle of foot drop patients.

scholarly journals Foot Drop Stimulation Versus Ankle Foot Orthosis After Stroke

Stroke ◽  
2013 ◽  
Vol 44 (6) ◽  
pp. 1660-1669 ◽  
Author(s):  
Patricia M. Kluding ◽  
Kari Dunning ◽  
Michael W. O’Dell ◽  
Samuel S. Wu ◽  
Jivan Ginosian ◽  
...  
Keyword(s):  
Foot Drop ◽  
Ankle Foot Orthosis ◽  
Foot Orthosis

The effect of tuning ankle foot orthoses–footwear combination on the gait parameters of children with cerebral palsy

2012 ◽  
Vol 37 (2) ◽  
pp. 95-107 ◽  
Author(s):  
Nicola Eddison ◽  
Nachiappan Chockalingam
Keyword(s):  
Cerebral Palsy ◽  
Foot Orthoses ◽  
Ankle Foot Orthosis ◽  
Gait Parameters ◽  
Ankle Foot Orthoses ◽  
Children With Cerebral Palsy ◽  
Within Subjects ◽  
Kinetics Of ◽  
Kinematics And Kinetics ◽  
Foot Orthosis

Background:There are a wide variety of ankle foot orthoses used in clinical practice which are characterised by their design, the material used and the stiffness of that material. Changing any of these three components will alter the effect of the ankle foot orthosis on gait.Objectives:The purpose of this article is to provide an overview on the available research on ankle foot orthosis–footwear combination tuning on the gait characteristics of children with cerebral palsy through a structured review.Study Design:Literature review.Methods:A thorough search of previous studies published in English was conducted within all major databases using relevant phrases without any limits for the dates. These searches were then supplemented by tracking all key references from the appropriate articles identified including hand searching of published books where relevant.Results:To date, there are 947 papers in the literature pertaining to the study of ankle foot orthosis. Of these, 153 investigated the use of ankle foot orthosis for children with cerebral palsy. All the studies included in this review were of a within-subjects design and the evidence levels were generally low.Conclusions:The overall results suggested that ankle foot orthosis–footwear combination tuning has the potential to improve the kinematics and kinetics of gait in children with cerebral palsy. However, the review highlights a lack of well-designed and adequately powered studies.Clinical relevanceWhile the research described in this article indicates an improvement in the gait of children with cerebral palsy following tuning of their ankle foot orthosis–footwear combination, there is still a paucity of research with quantitative data on the effects of kinematics and kinetics of ankle foot orthosis–footwear combination tuning, comparing untuned ankle foot orthosis–footwear combinations with tuned ankle foot orthosis–footwear combination. Furthermore, current research does not identify the effect of tuning on energy efficiency.

scholarly journals Effects of plantar flexion resistive moment generated by an ankle-foot orthosis with an oil damper on the gait of stroke patients: a pilot study

2012 ◽  
Vol 37 (3) ◽  
pp. 212-221 ◽  
Author(s):  
Sumiko Yamamoto ◽  
Naoki Tomokiyo ◽  
Tadashi Yasui ◽  
Toshikazu Kawaguchi
Keyword(s):  
Plantar Flexion ◽  
Reaction Force ◽  
Three Dimensional ◽  
Chronic Phase ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Ankle Foot Orthosis ◽  
Paretic Limb ◽  
Gait Parameters ◽  
Foot Orthosis

Background: An ankle-foot orthosis with an oil damper was previously developed to assist the first rocker function during gait, but the effects of the amount of resistive moment generated on gait have not been clarified. Objectives: To measure the amount of resistive moment generated by the ankle-foot orthosis with an oil damper during gait and determine its effect on the gait of patients with stroke. Study Design: Preliminary cross-sectional study. Methods: The gait of four patients with stroke in the chronic phase was measured in four conditions: without an ankle-foot orthosis and with the ankle-foot orthosis with an oil damper generating three different amounts of resistive moment. Measurements were taken with a three-dimensional motion analysis system and a specially designed device to determine the resistive moment. Results: The resistive moment was observed in the former half in stance of the paretic limb, and its magnitude was less than 10 N m. Some gait parameters related to terminal stance and preswing were affected by the amount of resistive moment. The forward component of floor reaction force and the shank vertical angle showed peak values when the patients reported feeling most comfortable during gait. Conclusion: Although the resistive moment generated by the ankle-foot orthosis with an oil damper was small, it was sufficient to alter gait. Clinical relevance To maximize the effectiveness of ankle-foot orthoses, it is necessary to know the effects of resistive moment on the gait of patients with stroke. The ankle-foot orthosis with an oil damper assists the first rocker function in gait and also affects the gait in a later phase in stance. The peak values of some gait parameters coincided with patients reporting gait to be most comfortable. It is important to know that ankle-foot orthosis with an oil damper assistance in the first rocker alters the weight acceptance on the paretic limb and affects the gait parameters related to propulsion ability in stance.

scholarly journals Commonly Used Types and Recent Development of Ankle-Foot Orthosis: A Narrative Review

Healthcare ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1046
Author(s):  
Yoo Jin Choo ◽  
Min Cheol Chang
Keyword(s):  
Stance Phase ◽  
Narrative Review ◽  
Foot Drop ◽  
Ankle Foot Orthosis ◽  
Physical Conditions ◽  
Heel Contact ◽  
Foot Problems ◽  
Kenaf Composites ◽  
Foot Orthosis ◽  
Ankle And Foot

(1) Background: ankle-foot orthosis (AFO) is the most commonly prescribed orthosis to patients with foot drop, and ankle and foot problems. In this study, we aimed to review the commonly used types of AFO and introduce the recent development of AFO. (2) Methods: narrative review. (3) Results: AFO prevents the foot from being dragged, provides a clearance between the foot and the ground in the swinging phase of gait, and maintains a stable posture by allowing heel contact with the ground during the stance phase. In clinical practice, the most commonly used AFO include plastic AFO, walking boot, UD-Flex, and carbon fiber AFO. In addition, for compensating the demerits of these conventional AFOs, new types of AFOs, including AF Servo, TurboMed, three-dimensionally printed AFO, and AFO made from kenaf composites, were developed. (4) Conclusions: we think that our review can guide clinicians in selecting and prescribing the appropriate AFO for each patient in accordance with their specific physical conditions.

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