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PubMed · 12899250

Developing wearable bio-feedback systems: a general-purpose platform.

Luigi Bianchi·Fabio Babiloni·Febo Cincotti·Marco Arrivas·Patrizio Bollero·Maria Grazia Marciani
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Abstract

Microprocessors, even those in PocketPCs, have adequate power for many real-time biofeedback applications for disabled people. This power allows design of portable or wearable devices that are smaller and lighter, and that have longer battery life compared to notebook-based systems. In this paper, we discuss a general-purpose hardware/software solution based on industrial or consumer devices and a C++ framework. Its flexibility and modularity make it adaptable to a wide range of situations. Moreover, its design minimizes system requirements and programming effort, thus allowing efficient systems to be built quickly and easily. Our design has been used to build two brain computer interface systems that were easily ported from the Win32 platform.

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Biofeedback, PsychologyBrainComputer SystemsElectroencephalographyElectronicsEquipment DesignEvoked PotentialsHumansMiniaturizationMonitoring, AmbulatorySignal Processing, Computer-AssistedSoftwareSoftware DesignUser-Computer InterfaceEvaluation StudyJournal Article

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Luigi Bianchi, Fabio Babiloni, Febo Cincotti, Marco Arrivas, Patrizio Bollero, Maria Grazia Marciani. 2003. Developing wearable bio-feedback systems: a general-purpose platform.. https://doi.org/10.1109/tnsre.2003.814452

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Force platform feedback for standing balance training after stroke.

BACKGROUND: Standing balance deficits are common in individuals after stroke. One way to address these deficits is to provide the individual with feedback from a force platform while balance activities are performed. The feedback can take visual and/or auditory form. OBJECTIVES: To determine if visual or auditory force platform feedback improves the clinical and force platform standing balance outcomes in clients with stroke. SEARCH STRATEGY: We searched the Cochrane Stroke Group trials register (last searched December 2003), and the following electronic bibliographic databases: the Cochrane Central Register of Controlled Trials (The Cochrane Library Issue 3, 2003), MEDLINE (1966 to May 2003), EMBASE (1974 to May 2003), CINAHL (1982 to May 2003), PEDro (May 2003), CIRRIE (May 2003) and REHABDATA (May 2003). Reference lists of articles were reviewed and manufacturers of equipment were contacted. SELECTION CRITERIA: Randomized controlled trials comparing force platform with visual feedback and/or auditory feedback to other balance treatments. DATA COLLECTION AND ANALYSIS: Two reviewers independently assessed trials for inclusion, methodological quality, and data extraction. Trials were combined for meta-analysis according to outcome and type of feedback. MAIN RESULTS: We included seven trials (246 participants). Force platform feedback did not improve clinical measures of balance when moving or walking (Berg Balance Scale and Timed Up and Go). Significant improvements in laboratory force platform indicators of stance symmetry were found for regimens using visual feedback (standardised mean difference (SMD) -0.68, 95% confidence interval (CI) -1.31 to -0.04, p = 0.04) and the concurrent visual and auditory feedback (weighted mean difference (WMD) -4.02, 95% CI -5.99 to -2.04, p = 0.00007). There were no significant effects on laboratory postural sway indicators, clinical outcomes or measures of function at follow-up assessment. REVIEWERS' CONCLUSIONS: Force platform feedback (visual or auditory) improved stance symmetry but not sway in standing, clinical balance outcomes or measures of independence.

Biofeedback, Psychology↗