Application of the voluntary step execution test to identify elderly fallers

Melzer, Itshak; Kurz, Ilan; Shahar, Danit R.; Levi, M.; Oddsson, Lars

doi:10.1093/ageing/afm068

Cited by 92 publications

(92 citation statements)

References 27 publications

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“…The durations of the rapid steps performed within the VR-RST setup with the SeeMe platform, with median scores of 1133, 1083, and 1037 ms for forward, backward, and sideward stepping, respectively (see Table 2), are in agreement with RST to somatosensory cues by means of force plate measurement [19]. The VR-RST scores appear to be very similar to the outcomes of the choice reaction test in the frontal plane performed by 104 elderly individuals in an Australian study, which revealed mean total step times equal to 1231 ± 242 ms for fallers and 1113 ± 151 for non-fallers [28].…”

Section: Discussionsupporting

confidence: 56%

“…Therefore a rapid step execution test (RST) utilizing a somatosensoric cue and force plate measures has been utilized to identify rapid step response time of elderly individuals at risk for falls. These measures were able to differentiate between fallers and non-fallers, while the use of functional tests such as the Berg Balance Scale (BBS) and the Timed Up and Go test (TUG) are less conclusive [19]. In follow-up studies, the RST measure was found to be valid [20] and reliable [21].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Discussionsupporting

confidence: 56%

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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“…While humans perform multi-tasking in daily life to deal with various external environments in a proper way, posture and balance need to be maintained [11,12]. This is called dual-task performance and it is defined as performing one task Original Article while doing another task or to persistently perform more than two tasks simultaneously [13].…”

Section: Introductionmentioning

confidence: 99%

Influence of mobile phone texting on gait parameters during ramp ascent and descent

Kim

Park

Cha

et al. 2014

PTRS

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Objective: The purpose of this study was to examine the influences on gait features during mobile phone use while ramp walking. Design: Cross-sectional study. Methods: Thirty-three healthy adult subjects performed four walking conditions on an outside ramp with a 5 m length, 1.5 m width, and a 5 o angle. All participants were touch screen mobile phone users. Four walking conditions were used: 1) ramp ascent,2) ramp descent, 3) texting during ramp ascent, and 4) texting during ramp descent. In conditions 3) and 4), subjects texted the words of "Aegukga"−the song of patriotism−while walking. Upon the signal of start, the subjects walked the ramp during texting. Gait parameters were measured at the length of 3 m excluding 1 m of the start and end of the total length. Each situation was repeated three times for each subject, and mean values were calculated. For gait examination, a gait analyzer was used (OptoGait). Results: Subjects ranged in age from 23 to 38 years (mean age, 27.73). Eighty-three percent of subjects in our study had experienced an accident during mobile phone use. Texting on a mobile phone while walking significantly decreased ramp gait, speed, cadence, stride length, step length, and single support (p<0.05) and significantly increased stride time, step time, gait cycle, and double support (p<0.05). There was a significant difference in cadence, step length, stride time, step time, and single support during ramp ascent and descent (p<0.05). Conclusions:Texting on a mobile phone while walking significantly decreased gait quality.

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“…Many previous articles have reported that reaction time can identify elderly individuals at risk of falling [4][5][6][7][8]. The step responses used to avoid a fall involve motor functions, cognitive functions, and visuospatial skills.…”

Section: Introductionmentioning

confidence: 99%

Development of Measurement System for Task Oriented Step Tracking Using Laser Range Finder

Takahashi

Matsumura

Moriguchi

et al. 2012

Volume 1: Adaptive Control; Advanced Vehicle Propulsion Systems; Aerospace Systems; Autonomous Systems; Battery Modeling; Bioch

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Background: Avoiding a fall requires fast and appropriate step responses, stepping speed as a fall risk indicator has only been assessed in older adults. We have developed a new measurement system that applies a laser range finder to assess temporal and spatial parameters of stepping performance such as step speed, length, and accuracy. This measurement system has higher portability, lower cost, and can analyze a larger number of temporal and spatial parameters than existing measurement systems. The aim of this study was to quantify the system for measuring reaction time and stride duration by compared to that obtained using a force platform. Methods: Ten healthy young adults performed steps in response to visual cues. The measurement system applied a laser range finder to measure the position and velocity of the center of each leg and of both legs. We applied the developed measurement system to the rhythmic stepping exercise and measured reaction time and stride duration. In addition, the foot-off time and foot-contact time were quantified using the measurement system, and compared to the foot-off time and foot-contact time quantified using a force platform.

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Application of the voluntary step execution test to identify elderly fallers

Abstract: The study provides evidence that a simple, safe measure of step execution under dual-task conditions can identify elderly individuals at risk for falls.

Cited by 92 publications

References 27 publications

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

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

Influence of mobile phone texting on gait parameters during ramp ascent and descent

Development of Measurement System for Task Oriented Step Tracking Using Laser Range Finder

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