Foot contact event detection using kinematic data in cerebral palsy children and normal adults gait

Desailly, Éric; Yepremian, Daniel; Sardain, Philippe; Lacouture, Patrick

doi:10.1016/j.gaitpost.2008.06.009

Cited by 97 publications

(87 citation statements)

References 10 publications

(25 reference statements)

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“…Furthermore, for all cases, the differences were within the ranges reported in the literature for other kinematic methods [3][4][5][6]. …”

Section: A Accuracy Evaluation For Level Ground Testssupporting

confidence: 81%

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Evaluation of methods based on conventional videography for detection of gait events

Cano¹,

Ewins²,

Shaheen³

et al. 2017

VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016

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Abstract-The detection of gait events plays an important role in gait analysis. The initial foot contact (IC) and the end of foot contact or foot off (FO) represent the start of stance and swing, respectively. They are commonly used to compute parameters that offer information for the characterization of gait.To determine these events, kinematic methods that implement optical systems, including conventional video cameras, have been suggested.The key objective of this study was to evaluate the performance of two event detection methods, one visual (VM) and one semiautomatic (SAM), which use conventional video recordings, for the visual detection of IC and FO, during level ground and stair walking. The methods were tested in 10 healthy subjects, wearing confortable shoes and walking at a self-selected speed. The accuracy of the proposed methods was compared with force plate data (gold standard). Furthermore, the VM and the SAM were compared with an alternative kinematic method: The Velocity-Algorithm (VA), previously described in the literature.The results of the level ground test showed that the VM and the SAM detected IC and FO with an absolute mean difference (AMD) lower than 30 ms.For the stair climbing test, it was found that the VM and the SAM detected IC and FO with an AMD lower than 55 ms.In general terms, the VM and the SAM produced differences within the ranges reported in the literature for both terrains.These results provide preliminary evidence supporting the use of both methods for gait event detection on level walking as well as stair climbing.

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“…Furthermore, for all cases, the differences were within the ranges reported in the literature for other kinematic methods [3][4][5][6]. …”

Section: A Accuracy Evaluation For Level Ground Testssupporting

confidence: 81%

“…A number of methods, including kinematic methods using optical systems [3][4][5][6], foot switches [7], pressure matrices [8], pressure insoles [2], accelerometers [9] and gyroscopes [1], have been suggested and evaluated.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of methods based on conventional videography for detection of gait events

Cano¹,

Ewins²,

Shaheen³

et al. 2017

VII Latin American Congress on Biomedical Engineering CLAIB 2016, Bucaramanga, Santander, Colombia, October 26th -28th, 2016

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“…These events delimit the stance and swing phases of a gait cycle [27][28][29] . The use of force platforms 27,28,30,31 and computerized systems for motion analysis has been considered highly accurate methods of defining gait events and describing gait temporal parameters 1 . However, these methods involve complex procedures that are usually restricted to the laboratory setting 1 .…”

Section: Introductionmentioning

confidence: 99%

Assessment of gait in toddlers with normal motor development and in hemiplegic children with mild motor impairment: a validity study

Figueiredo¹,

Silva²,

Avelar³

et al. 2013

Braz. J. Phys. Ther.

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| Background: The optimization of gait performance is an important goal in the rehabilitation of children with cerebral palsy (CP) who present a prognosis associated with locomotion. Gait analysis using videos captured by digital cameras requires validation. Objective: To evaluate the validity of a method that involves the analysis of videos captured using a digital camera for quantifying the temporal parameters of gait in toddlers with normal motor development and children with CP. Method: Eleven toddlers with normal motor development and eight children with spastic hemiplegia who were able to walk without assistive devices were asked to walk through a space contained in the visual field of two instruments: a digital camera and a three-dimensional motion analysis system, Qualisys Pro-Reflex. The duration of the stance and swing phases of gait and of the entire gait cycle were calculated by analyzing videos captured by a digital camera and compared to those obtained by Qualisys Pro-Reflex, which is considered a highly accurate system. Results: The Intraclass Correlation Coefficient (ICC) demonstrated excellent agreement (ICC>0.90) between the two procedures for all measurements, except for the swing phase of the normal toddlers (ICC=0.35). The standard error of measurement was less than 0.02 seconds for all measures. Conclusions: The results reveal similarities between the two instruments, suggesting that digital cameras can be valid instruments for quantifying two temporal parameters of gait. This congruence is of clinical and scientific relevance and validates the use of digital cameras as a resource for helping the assessment and documentation of the therapeutic effects of interventions targeted at the gait of children with CP.Keywords: gait; toddlers; cerebral palsy; image processing; computer-assisted; rehabilitation. HOW TO CITE THIS ARTICLEFigueiredo PRP, Silva PLP, Avelar BS, Chagas PSC, Oliveira LCP, Mancini MC. Assessment of gait in toddlers with normal motor development and in hemiplegic children with mild motor impairment: a validity study. Braz J Phys Ther. 2013 July-Aug; 17(4):359-366. http://dx

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“…Identification of the gait events facilitates the analysis of gait, design and development of assistive technologies such as functional electrical stimulation systems, prosthetics and foot-drop stimulators [2,3]. In clinical applications, these events are used to evaluate the progress of patients with cerebral palsy (CP), Parkinson's disease, to improve alignment or fitting of the prostheses/orthoses [4,5]. Most of the microprocessor based prostheses use the feedback from mechanical sensors to detect the phases/events and provide necessary damping resistance by switching between controller states.…”

Section: Introductionmentioning

confidence: 99%

Real-time gait event detection for lower limb amputees using a single wearable sensor

Maqbool

Husman

Awad

et al. 2016

2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

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ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. Overall, detection accuracy was 99.78% for all the events in both groups. Based on the validated results, the proposed system can be used to accurately detect the temporal gait events in real-time that leads to the detection of gait phase system and therefore, can be utilized in gait analysis applications and the control of lower limb prostheses.

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Foot contact event detection using kinematic data in cerebral palsy children and normal adults gait

Cited by 97 publications

References 10 publications

Evaluation of methods based on conventional videography for detection of gait events

Evaluation of methods based on conventional videography for detection of gait events

Assessment of gait in toddlers with normal motor development and in hemiplegic children with mild motor impairment: a validity study

Real-time gait event detection for lower limb amputees using a single wearable sensor

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