Application of Sit-To-Stand Assistive Device Based on Hip Support

2021 ◽  
Vol 14 ◽  
Author(s):  
Huaiqiang Zhang ◽  
Qiang Xue ◽  
Shuo Yang ◽  
Tongtong Wang ◽  
Binwei Zhou
Keyword(s):  
Lower Limb ◽  
Independent Living ◽  
Structural Characteristics ◽  
Assistive Devices ◽  
Assistive Device ◽  
Technology Application ◽  
Assist Devices ◽  
Advantages And Disadvantages ◽  
Sit To Stand

Background: Completing the transition from a sitting position to a standing position is a basic skill in people’s daily lives and is crucial for independent living. Lower limb dysfunction will bring many inconveniences into a person’s life and greatly affect their quality of life. Patients with lower limb dysfunction are a specialized group, and nursing problems for this group are becoming increasingly serious. Helping patients with lower limb dysfunction restore their lower limb mobility or assisting them to walk is a social problem necessary to be solved. Objective: : To review the recent sit-to-stand assistive devices based on hip support, classify them systematically and introduce their characteristics, including the mechanisms and the types of patients for which such mechanisms are applicable; to help patients with lower limb dysfunction or doctors (therapists) understand and choose a reasonable sit-to-stand assist device based on hip support. Methods: This paper summarizes literatures and patents about sit-to-stand assistive devices. From the aspects of structural characteristics, drive type and support modes based on the hip and applications situation, the advantages and disadvantages of the typical sit-to-stand assist devices are represented. Results: Current and future development trends on the structural characteristics, drive type and support modes based on the hip and applications situation of sit-to-stand assist devices are discussed to improve the humanization, modularization and applicability of sit-to-stand assist devices. Conclusion: Sit-to-stand assistive devices based on hip support can help patients improve the quality of their life, assist patients carrying out rehabilitation training, and delay the decline of lower limb function. However, the existing sit-to-stand assistive devices based on hip support need further improvement in the aspects of motion mechanism, new technology application and ergonomics design.

Improving sit-to-stand transition by the saddle-assistive device in the spinal cord injury: A case study

2021 ◽  
pp. 095441192110033
Author(s):  
Akbar Hojjati Najafabadi ◽  
Saeid Amini ◽  
Farzam Farahmand
Keyword(s):  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Lower Limb ◽  
Reaction Force ◽  
Assistive Device ◽  
Limb Weakness ◽  
Sit To Stand ◽  
Lower Limb Weakness ◽  
Wide Range ◽  
Cord Injury

Physical problems caused by fractures, aging, stroke, and accidents can reduce foot power; these, in the long term, can dwindle the muscles of the waist, thighs, and legs. These conditions provide the basis for the invalidism of the harmed people. In this study, a saddle-walker was designed and evaluated to help people suffering from spinal cord injury and patients with lower limb weakness. This S-AD works based on body weight support against the previously report designs. This saddle-walker consisted of a non-powered four-wheel walker helping to walk and a powered mechanism for the sit-to-stand (STS) transfer. A set of experiments were done on the STS in the use of the standard walker and the saddle-assistive device(S-AD). A comparison of the results showed that this device could reduce the vertical ground reaction force (GRF) of the legs up to 70%. Using this device could help a wide range of patients with lower limb weakness and SCI patients in changing from sitting to standing.

The Muscle Myogram as a Control Signal for Use in Powered Limb Orthosis

2006 ◽  
Author(s):  
M. Antonelli ◽  
P. Beomonte Zobel ◽  
J. Giacomin
Keyword(s):  
Lower Limb ◽  
Assistive Device ◽  
Sitting Position ◽  
Test Bed ◽  
Disabled People ◽  
Test Protocol ◽  
Prosthetic Devices ◽  
Specific Device ◽  
Definition Of

The choice of the command technique to be used in orthotic and prosthetic devices is very critical for the acceptance and, finally, the success of the specific device. Many variables influence this choice: the general characteristics of the signal, the quality of the correlation between signal and specific actions of the user and the algorithm that is derived, the acceptance of the technique, as applied to the specific device, from the user, etc. Among the command techniques, MMG signal seems to be promising to command an assistive device. In this paper a test protocol for studying MMG signal, to investigate the prospective for its use as a command technique of a powered lower limb orthosis capable of raising elderly and disabled people from the sitting position, is proposed. The definition of the test protocol, including the description of the test bed and the sensors application, is presented. Finally, the experimental results are showed and discussed.

scholarly journals Effects of lower limb prosthesis on activity, participation, and quality of life: a systematic review

2012 ◽  
Vol 36 (2) ◽  
pp. 145-158 ◽  
Author(s):  
Kersti AM Samuelsson ◽  
Outi Töytäri ◽  
Anna-Liisa Salminen ◽  
Åse Brandt
Keyword(s):  
Quality Of Life ◽  
Systematic Review ◽  
Lower Limb ◽  
User Satisfaction ◽  
Real Life ◽  
Assistive Devices ◽  
Activity Participation ◽  
High Quality Research

Background: Effects presented on the use of assistive devices such as prosthesis are often based on laboratory findings (i.e. efficacy). Objectives: To summarise and evaluate findings from studies on effectiveness of lower limb prostheses for adults in real life contexts, primarily in terms of activity, participation, and quality of life (QoL) and secondarily in terms of user satisfaction, use/non-use, and/or cost-effectiveness. Study Design: Systematic review. Methods: We included controlled studies and non-controlled follow-up studies including both baseline and follow-up data. Using 14 different databases supplemented with manual searches, we searched for studies published from 1998 until June 2009. Results: Out of an initial 818 identified publications, eight met the inclusion criteria. Four studies reported on the effectiveness of a microprocessor-controlled knee (MP-knee) compared to a non-microprocessor-controlled knee (NMP-knee). Results were inconsistent except for quality of life and use/non-use, where the authors reported an improvement with the MP-knee compared to the NMP-knee. The remaining four studies included a diversity of prosthetic intervention measures and types of endpoints. Conclusions: Overall, there was an inconsistency in results and study quality. This review highlights the need for high-quality research studies that reflect the effectiveness of different prosthesis interventions in terms of users’ daily living and QoL. Clinical relevance Clinical guidelines are important to every practitioner. Information on expected effectiveness from assistive devices should be well founded and contain both facts about the device quality and its contribution to users’ daily lives. Thus, studies based on users’ experiences from prosthetic use in everyday life activities are of great importance.

Integrated Sensing Techniques for Assistive Chairs

2013 ◽  
Vol 3 (4) ◽  
pp. 58-70
Author(s):  
Hang Lu ◽  
Dayou Li ◽  
John Oyekan ◽  
Carsten Maple
Keyword(s):  
Older People ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Independent Living ◽  
Premature Death ◽  
The Elderly ◽  
Assistive Devices ◽  
Sit To Stand ◽  
Standing Up ◽  
Elderly Mobility

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.

Development of a Parallel Manipulator-Based Multifunction Mobility Assistive Device

2019 ◽  
Vol 11 (6) ◽  
Author(s):  
Ahmed Asker ◽  
Samy F. M. Assal
Keyword(s):  
Lower Limb ◽  
Parallel Manipulator ◽  
Upright Position ◽  
Robotic Systems ◽  
Assistive Device ◽  
Finite Element Analyses ◽  
Natural Manner ◽  
Personal Assistance ◽  
Sit To Stand ◽  
Position And Orientation

Abstract Developing robotic systems for reducing the dependence of elderly on personal assistance is one of the most recent hot topics in robotics research. This paper proposes a multifunction mobility assistive device, which consists of an assisting parallel manipulator carried over an active walker. It is developed to interactively assist in various lower limb activities, namely, sit-to-stand, walking, bed or toilet to wheelchair transfer, and support in the upright position. The assisting parallel manipulator is constructed based on two of the nonconventional structure of the 3-RPR parallel manipulator. This structure offers kinematic decoupling between the position and orientation and free of singularity suitable workspace as well as high rigidity and payload capability. Kinematic, dynamic, and finite element analyses are performed to ensure the functionality of the device. A prototype of the device is constructed to verify the applicability of the device. The prototype is shown to be suitable for assisting subjects to stand up in a natural manner.

The Effect of the Usage of Computer-Based Assistive Devices on the Functioning and Quality of Life of Individuals who are Blind or have low Vision

2018 ◽  
Vol 112 (1) ◽  
pp. 87-99 ◽  
Author(s):  
Yotam Rosner ◽  
Amotz Perlman
Keyword(s):  
Quality Of Life ◽  
Low Vision ◽  
Visual Impairments ◽  
Assistive Devices ◽  
Assistive Device ◽  
Microsoft Word ◽  
Computer Based ◽  
Visually Impaired Persons ◽  
E Mail

Introduction The Israel Ministry of Social Affairs and Social Services subsidizes computer-based assistive devices for individuals with visual impairments (that is, those who are blind or have low vision) to assist these individuals in their interactions with computers and thus to enhance their independence and quality of life. The aim of this study was to examine the effect of computer usage on the quality of life of computer-based assistive device users, and to evaluate their capacity to carry out computer-based tasks. Methods The study was conducted between the years 2013 and 2015. Questionnaires were provided to 96 randomly sampled individuals with visual impairments. These questionnaires were designed to collect information about the quality of life, types and frequency of computer use, satisfaction with the assistive devices, and the effects of computer-based assistive device usage on the participants’ lives. In addition, the study evaluated participants’ performance in tasks such as e-mail use, Internet surfing, and the use of Microsoft Word; participants performed these tasks on their personal computers. The research sample accounts for about 10% of visually impaired persons in Israel. Results Findings suggest that participants use computer-based assistive devices frequently (four hours a day on average), primarily for leisure (three hours on average). Participants also report high satisfaction with their devices (mean of 3.98 out of the maximum score of 5.00) and indicate that the devices have improved their quality of life (mean 3.67 out of 5.00) and leisure activities (mean 3.68 out of 5.00). Participants display high levels of task performance, especially in the use of Microsoft Word software (mean of 3.47 out of 5.00), and e-mail usage (mean of 3.81 out of 5.00). Discussion The findings suggest that most participants use computer-based assistive devices daily and report a positive influence from them on their quality of life and activity. Implications for practitioners The study suggests that welfare services and assistance organizations would benefit from subsidizing computer assistive devices for individuals with visual impairments.

scholarly journals Psychometric Properties of the Spanish Version of Psychosocial Impact of Assistive Devices Scale in a Large Sample of People With Neuromuscular, Neurological, or Hearing Disabilities

2021 ◽  
Vol 12 ◽  
Author(s):  
Emiliano Díez ◽  
Estíbaliz Jiménez-Arberas ◽  
Thais Pousada
Keyword(s):  
Assistive Technology ◽  
Psychometric Properties ◽  
Psychosocial Impact ◽  
Assistive Devices ◽  
Assessment Tools ◽  
Spanish Version ◽  
Assistive Device ◽  
Measurement Properties ◽  
Large Sample

Assistive technology (AT) is any device, software, or equipment designed for and used by individuals with disabilities to engage in everyday activities and achieve independence. However, the usefulness of those technology-based or supported treatments is a complex issue that has led to the development of various conceptual models for assistive technology outcomes research and practice as well as different assessment tools that help to explore the effect of technology on people's lives. One of those instruments is the Psychosocial Impact of Assistive Device Scale (PIADS), a 26-item questionnaire that measures the psychosocial impact of interventions, using assistive devices in three quality-of-life domains: competence, adaptability, and self-esteem. PIADS scale has been translated and adapted to several languages, and it has been successfully used to measure AT outcomes in different disability profiles to predict abandonment or even as a relevant determinant of future adoption of eHealth. Quinteiro (2010) adapted PIADS to Spanish for the first time, although no studies have yet been published to systematically study its psychometric properties. Therefore, the purpose of this study was to evaluate measurement properties of the Spanish version of PIADS scale by means of a dataset obtained from its application to a large sample (n = 417) of people with neuromuscular, neurological, or hearing disabilities that used different assistive devices. The results will provide valuable indicators about the measurement quality of the Spanish PIADS scale and will help to promote the use of reliable and valid AT outcome assessment tools for research and clinical purposes.

scholarly journals Physical functional capacity of patients with glioma prior to adjuvant radiation: preliminary descriptive study

2021 ◽  
Author(s):  
Ali Dulfikar ◽  
Eng-Siew Koh ◽  
Zarnie Lwin ◽  
Elizabeth Hovey ◽  
Haryana Dhillon ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Median Time ◽  
Physical Functioning ◽  
Independent Living ◽  
Walking Distance ◽  
Adjuvant Radiation ◽  
Sit To Stand ◽  
Grade Ii ◽  
Minute Walk

Abstract Background Few studies have assessed physical functioning in glioma patients with grade II, III, IV glioma prior to undergoing adjuvant radiation with or without chemotherapy. The aim of this study was to describe the baseline physical functioning capacity of patients with glioma prior to adjuvant therapy compared to validated cut-offs required to maintain independence. Methods This study is a cross-sectional study that recruited patients with grade II, III, IV glioma (n=33) undergoing adjuvant radiation with or without chemotherapy. The six-minute walk, thirty-second sit-to-stand and timed “Up & Go” assessments were used to describe baseline physical functioning. Perceived quality of life from the European Organisation for Research and Treatment of Cancer (EORTC) quality of life questionnaire (QLQ-C30) version 3.0 was used to quantify quality of life. Results Mean distance walked in the six-minute walk test was 416.2 meters (SD 137.6 meters) with a mean of 12.2 stands (SD 3.4 stands) achieved during the thirty-second sit-to-stand. Median time to complete the timed “Up & Go” assessment was seven seconds (Interquartile Range: three seconds). One sample t-tests suggest walking distance and chair stands were significantly lower than cut-off criterions to maintain independent living, t(32)= -5.96, p <0.001, bias-corrected accelerated 95% CI [370.7 to 460.4] and, t(32)= -4.60, p<0.01, bias-corrected accelerated 95% CI [11.0 to 13.4] respectively. Wilcoxon signed-rank test identified significantly shorter median time taken to complete the timed “Up & Go” test compared to the cut-off criterion (z = -4.43, n= 33, p<0.01). Conclusion This study suggests glioma patient’s aerobic endurance and lower limb strength are below criterion cut-offs recommended to maintain independent living. Timed “Up & Go” scores did not exceed the criterion cut-off, indicating respectable levels of mobility.

A review on squat-assist devices to aid elderly with lower limb difficulties in toileting to tackle constipation

2019 ◽  
Vol 233 (4) ◽  
pp. 464-475 ◽  
Author(s):  
R Hari Krishnan
Keyword(s):  
Quality Of Life ◽  
Colon Cancer ◽  
Lower Limb ◽  
The Elderly ◽  
Assistive Devices ◽  
Gastrointestinal Disorders ◽  
Anal Fissures ◽  
Research Areas ◽  
Elder Population

Constipation is an important issue that has impact on quality of life and health expenses of the elderly. It may lead to many other gastrointestinal disorders like colon cancer, haemorrhoids, anal fissures and so on. Squatting is considered to be the natural, traditional and most widely followed posture for defecation and hence, it is one of the practical solutions for avoiding constipation. Musculoskeletal issues due to ageing and changes in lifestyle make it difficult for the elder population to follow squatting or semi-squatting posture for defecation. Developing assistive devices to overcome older people’s difficulty to attain squatting or semi-squatting posture is one of the research areas which need to be explored further. This review covers various designs of such devices which will enable a user to attain ‘semi-squatting’ posture to defecate and also addresses various challenges and limitations to overcome.

TO VAD OR NOT TO VAD

2014 ◽  
Vol 3 (1) ◽  
pp. 238-245 ◽  
Author(s):  
Emily Friedman ◽  
Molly McMahon
Keyword(s):  
Mayo Clinic ◽  
Independent Living ◽  
Healthy Aging ◽  
Assistive Device ◽  
Implantable Medical Devices ◽  
Care Technology ◽  
Ventricular Assistive Device ◽  
To Receive

As part of its Healthy Aging & Independent Living (HAIL) initiative, Mayo Clinic Center for Innovation (CFI) examined the patient experience regarding the decision to receive a ventricular assistive device (VAD) implant, and patients’ quality of life after the surgery. As health care technology continues to develop, more people will be living longer, fuller lives with the assistance of wearable/implantable medical devices such as the VAD. This case study examined and made recommendations on ways for the Mayo Clinic VAD Committee to improve the program.

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