Rapid stepping time on ‘virtual’ objects correlates with measures of balance and fear of falling in elderly individuals

Laufer, Yocheved; Burstin, Arie; Brown, Riki; Korsensky, O.; Hutzler, Yeshayahu

doi:10.1016/j.physio.2015.03.349

Cited by 3 publications

(2 citation statements)

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“…The "See Me" system homepage advertises it as a tool to "practice and evaluate your patient's strength, endurance, range of motion, postural control, reaction time, proprioception, quality of movement, perception, divided attention and memory" [25]. Previous research with the system include mostly small low quality studies regarding its usefulness for the evaluation and treatment of spatial neglect [26], assessment of executive functions [27], walking and balance [28], evaluation of balance and fear of falling [29], balance improvement [30].…”

Section: Discussionmentioning

confidence: 99%

Non-Immersive Virtual Reality for Upper Limb Rehabilitation in Stroke Survivors - A Feasibility Study

Grigoras¹,

Matei²,

Ignat³

2018

Balneo

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We present the results of a feasibility study for the use of a commercially available non-immersive virtual reality system (SeeMe®) in upper limb motor rehabilitation of stroke survivors. The study included 8 chronic phase stroke survivors. All patients received 12 sessions with the system over 2 weeks, each session comprising 20 minutes of motor training using a sequence of 8 serious games. Outcome measures included the Fugl-Meyer assessment scale -upper limb section (FMA), the Stroke Impact Scale (SIS), the ingame assessment procedure of the SeeMe system and a feedback questionnaire. Following the rehabilitation program, we found no change on the clinical scales. Although some of the system generated parameters (score, endurance and reaction time or movement amplitude for each game) have improved significantly, in 3 of the 8 games none of the recorded variables has shown significant changes, with only one game showing significant improvement in 2 out of 3 parameters. The satisfaction questionnaire did not generally correlate with game performance (although this has happened in some of the games), but reflected correctly the increased interest of the subjects for the intervention and also their awareness of its real influence on motor abilities. This initial pilot study indicates that the SeeMe virtual reality system has the potential to be of use in clinical settings as a complement to conventional therapy. Future studies should include larger number of subjects, longer training duration, use more sensitive/dedicated measurements of improvement, and focus on a single game/exercise type.

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Section: Discussionmentioning

confidence: 99%

Non-Immersive Virtual Reality for Upper Limb Rehabilitation in Stroke Survivors - A Feasibility Study

Grigoras¹,

Matei²,

Ignat³

2018

Balneo

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show abstract

“…However, until now, no RST has been described utilizing on an off-the-shelf VR platform using only a computer, a video camera, and a screen. Following preliminary results with the SeeMe VR system, previously presented in a conference poster [30], the objectives of the present study were to assess RST in the forward, sideward, and backward directions, and to inform the convergent validity of these tests by means of associations between step execution time as determined by the SeeMe system and clinical measures of balance performance and fear of falling. A secondary purpose was to assess the impact of age across measures.…”

Section: Introductionmentioning

confidence: 99%

Rapid stepping test towards virtual visual objects: Feasibility and convergent validity in older adults

Hutzler

Korsensky

Laufer

2017

THC

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Abstract. BACKGROUND: Rapid voluntary stepping has been recognized as an important measure of balance control. OBJECTIVE: The purpose of this study was to assess the feasibility and convergent validity of a Rapid Stepping Test protocol utilizing a virtual reality SeeMeTM system (VR-RST) in elderly ambulatory and independent individuals living in a community residential home. METHODS: Associations between step execution times determined by the system and the Activities-specific Balance Confidence (ABC) Questionnaire, and clinical measures of balance performance in the MiniBESTest and Timed Up and Go (TUG) test, were established in 60 participants (mean age 88.2 ± 5.0 years). All participants completed the study. RESULTS: The correlations of the ABC questionnaire and the clinical tests with VR-RST forward and backward stepping were moderate (ρ rage 0.42-0.52), and weak to moderate with sideward stepping (ρ rage 0.32-0.52). Moderate to strong correlations were found across stepping directions (ρ rage 0.45-0.87). CONCLUSION: Findings support the test's feasibility and validity and confirm the utility of the VR-RST as an assessment tool in an elderly population.

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A neuromechanical model characterizing the motor planning and posture control in the voluntary lean in Parkinson’s disease

Jasimi Zindashti,

Rahmati,

Mohebbi

et al. 2024

J NeuroEngineering Rehabil

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Parkinson’s disease targets patients’ cognitive and motor abilities, including postural control. Many studies have been carried out to introduce mathematical models for a better understanding of postural control in such patients and the relation between the model parameters and the clinical assessments. So far, these studies have addressed this connection merely in static tests, such as quiet stance. The aim of this study is to develop a model for voluntary lean, and as such, identify the model parameters for both PD patients and healthy subjects from experimental data. The proposed model comprises planning and control sections. The model parameters for the planning section were extracted from the time response characteristics. Parameters for the control section were identified based on the spatial characteristics of the center-of-pressure (COP) response using an optimization process. 24 PD patients along with 24 matched healthy subjects participated in the study. The results showed a significant difference between the two groups in terms of temporal parameters for the planning section. This difference emphasizes bradykinesia as an essential symptom of PD. Also, differences were found for the postural control section. In all directions, the proportional gain of the feedback controller was significantly larger in PD patients; however, the gain of the feedforward controller was significantly smaller in PD patients. Furthermore, the control gains were strongly correlated with the clinical scales (Functional Reach Test and Unified Parkinson's Disease Rating Scale) in certain directions. In conclusion, the new model helps to better understand and quantify some PD symptoms in voluntary lean tasks.

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Rapid stepping time on ‘virtual’ objects correlates with measures of balance and fear of falling in elderly individuals

Cited by 3 publications

References 0 publications

Non-Immersive Virtual Reality for Upper Limb Rehabilitation in Stroke Survivors - A Feasibility Study

Non-Immersive Virtual Reality for Upper Limb Rehabilitation in Stroke Survivors - A Feasibility Study

Rapid stepping test towards virtual visual objects: Feasibility and convergent validity in older adults

A neuromechanical model characterizing the motor planning and posture control in the voluntary lean in Parkinson’s disease

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