Integrated Sensing Techniques for Assistive Chairs

Author(s):  
Hang Lu ◽  
Dayou Li ◽  
John Oyekan ◽  
Carsten Maple

This paper presents a survey of the contemporary assistive chairs and on-chair sensing approaches of capturing sit-to-stand (STS) movement. Sitting in a chair and standing up from a seated position are activities of daily living (ADLs) performed by humans. However, older people often encounter difficulties with these activities. These difficulties may cause substantial decreasing of the elderly mobility, leading to inactive participation in social activities and increasing the risk of chronic diseases that may cause premature death. Therefore, assisting older people to overcome these difficulties has significance for their independent living. At present, the assistive devices can be allocated in terms of market available ones and experimental prototypes, both of which are discussed here. Afterwards, the authors cast more light on integrated sensing techniques that are currently used with experimental prototypes and create a taxonomy of sensing techniques. Following from this survey, a chair capable of delivering assistance-as-needed is proposed.

2011 ◽  
Vol 26 (2) ◽  
pp. 99-108 ◽  
Author(s):  
Ali Ardalan ◽  
Monir Mazaheri ◽  
Hani Mowafi ◽  
Michael VanRooyen ◽  
Fariba Teimoori ◽  
...  

AbstractIntroduction: This study compares self-reported Activities of Daily Living (ADL) and Instrumental Activities of Daily Living (IADL) status among elderly survivors of the 2003 Bam Earthquake before, two months after, and five years after the event, and explores related determinants.Methods: A two-stage cluster survey was conducted on 210 elderly survivors in the earthquake-stricken area five years after the event.Results: Both ADL and IADL scores decreased two months after earthquake compared to prior status (p <0.001). No differences were observed between two months and five years after the event (p >0.05). Access to medical services were not related to level of ADL or IADL (p = 0.52 and p = 0.74, respectively). Elderly survivors with lower functional capability in terms of ADL experienced more problems in access to relief items (p = 0.04), but no similar association was found for IADL (p = 0.26).Conclusion: The Bam earthquake adversely affected functional capacity of the elderly. Disaster responders must take into account functional capacity of elders when planning for medical and relief operations.


2009 ◽  
Vol 19 (1) ◽  
pp. 61-69 ◽  
Author(s):  
AB Spinks ◽  
J Wasiak

SummaryFalls have a significant impact upon independent living ability in older people, with fall-related fractures one of the leading predictors of having to move into assisted living facilities. The loss of independence associated with a severe fall is often accompanied by a decline in physical, social, emotional and economic well-being. Rehabilitation programmes to restore functional ability following a fall have a greater chance of success if they adopt a multi-disciplinary approach and, if appropriate, are conducted in the patient's own home. Additional multi-component interventions that improve confidence and reduce the risk of subsequent falls may confer benefits by assisting individuals independently to perform activities of daily living.


2020 ◽  
Vol 12 (12) ◽  
pp. 214
Author(s):  
Sook-Ling Chua ◽  
Lee Kien Foo ◽  
Hans W. Guesgen

The smart home has begun playing an important role in supporting independent living by monitoring the activities of daily living, typically for the elderly who live alone. Activity recognition in smart homes has been studied by many researchers with much effort spent on modeling user activities to predict behaviors. Most people, when performing their daily activities, interact with multiple objects both in space and through time. The interactions between user and objects in the home can provide rich contextual information in interpreting human activity. This paper shows the importance of spatial and temporal information for reasoning in smart homes and demonstrates how such information is represented for activity recognition. Evaluation was conducted on three publicly available smart-home datasets. Our method achieved an average recognition accuracy of more than 81% when predicting user activities given the spatial and temporal information.


2020 ◽  
Vol 25 (5) ◽  
pp. 1947-1954
Author(s):  
Rita de Cássia Guedes ◽  
Rosangela Dias ◽  
Anita Liberalesso Neri ◽  
Eduardo Ferriolli ◽  
Roberto Alves Lourenço ◽  
...  

Abstract This article aims to categorize elderly non-frail (NF), pre-frail (PF) and frail (FF) as to fast and slow gait speed. Compare NF, PF and FF, and analyze associations between fast or slow gait speed with clinical, functional and mental factors. 5,501 elderly (65 years or over; to the Frailty in Brazilian Older People Study), classified as NF, PF and FF (Fried´s frailty phenotype) and, in relation to fast gait speed (≥ 0.8m/s) and slow (< 0.8m/s). Age, sex, body mass index, muscular strength, advanced, instrumental and basic activities of daily living, falls, fear of falling and depressive symptoms were evaluated. Logistic regression analysis investigated associations between variables. The proportion of the slow elderly increased with fragility (NF = 12.39%, PF = 37.56%, FF = 88.83%, p < 0.01). Be woman, performance in activities of daily living, muscle strength and fall were associated with fragility syndrome. The association between frailty and adverse health outcomes reinforces its primacy as an indicator of the functional health of the elderly. Functional capacity, muscular strength, and falls should be evaluated considering their potential for reversibility.


2021 ◽  
Vol 11 (2) ◽  
pp. 213
Author(s):  
Dulce Romero-Ayuso ◽  
Cristian Cuerda ◽  
Carmen Morales ◽  
Ricardo Tesoriero ◽  
José Matías Triviño-Juárez ◽  
...  

Cognitive dysfunction affects the performance of Activities of Daily Living (ADL) and the quality of life of people with these deficits and their caregivers. To the knowledge of the authors, to date, there are few studies that focus on knowing the relationship between personal autonomy and deductive reasoning and/or categorization skills, which are necessary for the performance of the ADL. The aim of this study was to explore the relationships between ADL and categorization skills in older people. The study included 51 participants: 31 patients with cognitive impairment and 20 without cognitive impairment. Two tests were administered to assess cognitive functions: (1) the Montreal Cognitive Assessment (MoCA); and (2) the digital version of Riska Object Classification test (ROC-d). In addition, the Routine Tasks Inventory-2 (RTI-2) was applied to determine the level of independence in activities of daily living. People with cognitive impairment performed poorly in categorization tasks with unstructured information (p = 0.006). Also, the results found a high correlation between cognitive functioning and the performance of ADLs (Physical ADL: r = 0.798; p < 0.001; Instrumental ADL: r = 0.740; p < 0.001), a moderate correlation between Physical ADLs and categorization skills (unstructured ROC-d: r = 0.547; p < 0.001; structured ROC-d: r = 0.586; p < 0.001) and Instrumental ADLs and categorization skills in older people (unstructured ROC-d: r = 0.510; p < 0.001; structured ROC-d: r = 0.463; p < 0.001). The ROC-d allows the assessment of categorization skills to be quick and easy, facilitating the assessment process by OT, as well as the accuracy of the data obtained.


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