Functional Rehabilitation: Coordination of Artificial and Natural Controllers

Héliot, Rodolphe; Azevedo, Christine; Espiau, Bernard

doi:10.5772/5160

Cited by 5 publications

(3 citation statements)

References 44 publications

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“…The FES-assistance system should adapt to patient behaviour and intentions expressed through his valid limbs motions, instead of imposing an arbitrary motion on the deficient limbs [7]. The need for cooperation between healthy and deficient limbs led us to the idea that valid limbs should be observed in order to improve the artificial control as well as deficient limb states should be somehow fed back to the patient for him to be able to behave efficiently.…”

Section: Introductionmentioning

confidence: 99%

A method for paraplegic upper-body posture estimation during standing: a pilot study for rehabilitation purposes

Pagès

Ramdani

Fraisse

et al. 2009

Med Biol Eng Comput

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This paper presents a contribution for restoring standing in paraplegia while using functional electrical stimulation (FES). Movement generation induced by FES remains mostly open looped and stimulus intensities are tuned empirically. To design an efficient closed-loop control, a preliminary study has been carried out to investigate the relationship between body posture and voluntary upper body movements. A methodology is proposed to estimate body posture in the sagittal plane using force measurements exerted on supporting handles during standing. This is done by setting up constraints related to the geometric equations of a two-dimensional closed chain model and the hand-handle interactions. All measured quantities are subject to an uncertainty assumed unknown but bounded. The set membership estimation problem is solved via interval analysis. Guaranteed uncertainty bounds are computed for the estimated postures. In order to test the feasibility of our methodology, experiments were carried out with complete spinal cord injured patients.

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Section: Introductionmentioning

confidence: 99%

A method for paraplegic upper-body posture estimation during standing: a pilot study for rehabilitation purposes

Pagès

Ramdani

Fraisse

et al. 2009

Med Biol Eng Comput

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“…Two distinct objectives may be targeted when using those techniques, depending on the type of disorder: chronic assistance or acute training. FES can be applied for example for walking assistance and training in post-stroke hemiplegic patients, as well as for standing and gait restoration in paraplegic patients [4]. The FES used in the framework of exercise was termed Functional Electrical Therapy (FET).…”

Section: Introductionmentioning

confidence: 99%

Wireless Distributed Architecture for Therapeutic Functional Electrical Stimulation: a technology to design network-based muscle control

Toussaint

Andreu

Fraisse

et al. 2010

2010 Annual International Conference of the IEEE Engineering in Medicine and Biology

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This paper presents a distributed Functional Electrical Stimulation architecture based on a wireless network, for therapeutic training of disabled patients. On this distributed architecture, a global controller can pilot a set of stimulation and acquisition units and modify dynamically stimulation and acquisition parameters. This solution intend to be a tool for researchers and therapist to develop closed-loop control algorithms and strategies for therapeutic rehabilitation applications with external FES, in a clinical context. In a wireless networkbased control, the variable delay introduced by the network must be taken into account to ensure the stability of the closed loop. Thus, in order to characterize the medium on which the control is performed, we carried out accurate measurements of the architecture performances (stack-crossing, round-trip time, etc.).

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“…Involving valid segment movements in the control of the artificial system, and therefore voluntary action of the person is also a way to give the patient an active role in the control Source: Human-Robot Interaction, Book edited by Nilanjan Sarkar, ISBN 978-3-902613-13-4, pp.522, September 2007, Itech Education and Publishing, Vienna, Austria Open Access Database www.i-techonline.com of his/her movements which would have positive psychological effect. The FES-assistance system should adapt to patient behaviour and intentions expressed through his valid limbs motions, instead of imposing an arbitrary motion on the deficient limbs (Heliot et al, 2007). The need for cooperation between healthy and deficient limbs led us to the idea that valid limbs should be observed in order to improve the artificial control as well as deficient limb states should be somehow fed back to the patient in order for him to be able to behave efficiently.…”

Section: Introductionmentioning

confidence: 99%

Posture and Movement Estimation Based on Reduced Information. Application to the Context of FES-based Control of Lower-Limbs

Ramdani¹,

Azevedo‐Coste²,

Guiraud³

et al. 2007

Human Robot Interaction

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Functional Rehabilitation: Coordination of Artificial and Natural Controllers

Cited by 5 publications

References 44 publications

A method for paraplegic upper-body posture estimation during standing: a pilot study for rehabilitation purposes

A method for paraplegic upper-body posture estimation during standing: a pilot study for rehabilitation purposes

Wireless Distributed Architecture for Therapeutic Functional Electrical Stimulation: a technology to design network-based muscle control

Posture and Movement Estimation Based on Reduced Information. Application to the Context of FES-based Control of Lower-Limbs

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