A Real-Time Algorithm for Movement Assessment Using Fuzzy Logic of Hip Arthroplasty Patients

Guevara, Cesar; Jadán-Guerrero, Janio; Rybarczyk, Yves; Acosta-Vargas, Patricia; Esparza, Wilmer; González, Mario; Villarreal, Santiago; Sánchez-Gordón, Sandra; Calle-Jimenez, Tania; Nunes, Isabel L.

doi:10.1007/978-3-319-94334-3_27

Cited by 2 publications

(3 citation statements)

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“…The results obtained with the sensor tests include 500 entries for each user, of which 200 corresponded to correct movements and 300 to incorrect movements. According to the proposed fuzzy model illustrated in Figure 5 and the movement detection scheme explained in Reference [29], patients only performed an exercise correctly with the correct corresponding angle 18% of the times, and only 27% performed it at an acceptable speed. During the testing stage, the optimal exercise detection rate obtained was 97.4% with a low false positive percentage of 2.6%.…”

Section: Resultsmentioning

confidence: 99%

“…This equipment captures the three-dimensional coordinates (X, Y, Z) of the 25 main joints of the human body as show on Figure 1. Information preprocessing was carried out to identify the relevant information, eliminating repeated data as well as noise as presented in Reference [29]. According to a study conducted by Nielsen [30], it is not possible to detect 100% of usability problems.…”

Section: Methodsmentioning

confidence: 99%

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An Agile Approach to Improve the Usability of a Physical Telerehabilitation Platform

et al. 2019

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The goal of a telerehabilitation platform is to safely and securely facilitate the rehabilitation of patients through the use of telecommunication technologies complemented with the use of biomedical smart sensors. The purpose of this study was to perform a usability evaluation of a telerehabilitation platform. To improve the level of usability, the researchers developed and proposed an iterative process. The platform uses a digital representation of the patient which duplicates the therapeutic exercise being executed by the patient; this is detected by a Kinect camera and sensors in real time. This study used inspection methods to perform a usability evaluation of an exploratory prototype of a telerehabilitation platform. In addition, a cognitive workload assessment was performed to complement the usability evaluation. Users were involved through all the stages of the iterative refinement process. Usability issues were progressively reduced from the first iteration to the fourth iteration according to improvements which were developed and applied by the experts. Usability issues originally cataloged as catastrophic were reduced to zero, major usability problems were reduced to ten (2.75%) and minor usability problems were decreased to 141 (38.74%). This study also intends to serve as a guide to improve the usability of e-Health systems in alignment with the software development cycle.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

An Agile Approach to Improve the Usability of a Physical Telerehabilitation Platform

et al. 2019

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“…The study developed by Guevara et al [5] proposes a model of real-time movement detection of patients of rehabilitation from hip surgery. The model applies the fuzzy logic technique to identify correct and incorrect movements in the performance of rehabilitation exercises using the motion capture device called Kinect of Xbox One.…”

Section: Application Of a Diffuse 3d Model For The Detection Of Rehabmentioning

confidence: 99%

Technical Contributions to the Quality of Telerehabilitation Platforms: Case Study—ePHoRt Project

Acosta-Vargas¹,

Jadán-Guerrero²,

Guevara³

et al. 2019

Assistive and Rehabilitation Engineering

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This chapter proposes three main technical contributions for the development of a telerehabilitation platform, named ePHoRT, for patients recovering from hip surgery. The first contribution is the application of a diffuse 3D model for the detection of rehabilitation exercises after hip surgery. The model applies fuzzy logic, which allows identifying in real time if a patient is performing a right or wrong movement, assisted by an avatar in 3D. The avatar copies the movements of the patient through a Kinect camera. The second contribution involves the proposal of an iterative method to improve the usability of telerehabilitation platforms along the development life cycle. The proposed method involves the use of an inspection method and includes protocols and instruments. This method has been validated in the ePHoRT project. Finally, the chapter describes accessibility guidelines for educational resources. It proposes accessibility standards for the content of educational resources in video and PDF formats in the telerehabilitation platform according to the Web Content Accessibility Guidelines (WCAG).

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A Real-Time Algorithm for Movement Assessment Using Fuzzy Logic of Hip Arthroplasty Patients

Cited by 2 publications

References 7 publications

An Agile Approach to Improve the Usability of a Physical Telerehabilitation Platform

An Agile Approach to Improve the Usability of a Physical Telerehabilitation Platform

Technical Contributions to the Quality of Telerehabilitation Platforms: Case Study—ePHoRt Project

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