Sequential reaching in older adults: vibrotactile feedback improves preparation and movement control.
Introduction: Age-related motor decline is particularly evident during complex movements that require sequencing and bimanual coordination. The one-target advantage (OTA), in which single-target movements are typically initiated faster than the first segment of a two-target sequence, provides a usef...
| Publicado en: | Frontiers in Aging Neuroscience pp. 1 - 14 |
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| Autores principales: | , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Frontiers Media S.A.
2026
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=195838191&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 195838191 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 16634365 BG2U jtl: Frontiers in Aging Neuroscience issn: 16634365 maglogo: N pubinfo: dt: 2026 pid: 40038 pub: Frontiers Media S.A. artinfo: ui: 195838191 195838191 195838191 10.3389/fnagi.2026.1840948 195838191 ppf: 1 ppct: 13 formats: tig: atl: Sequential reaching in older adults: vibrotactile feedback improves preparation and movement control. aug: au: Mohammadalinezhad Kolahdouz, Saba Malone, Quinn Passmore, Steven R. Marotta, Jonathan J. Glazebrook, Cheryl M. affil: Perceptual Motor Integration Lab, Applied Health Sciences, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada sug: subj: Psychomotor Performance Evaluation Movement Evaluation Feedback Methods Vibration Therapeutic Use Task Performance and Analysis Evaluation Task Performance and Analysis Evaluation Human Funding Source Female Male Middle Age Aged Descriptive Statistics Reaction Time Motor Activity Aging Touch Acoustic Stimulation Range of Motion Kinematics Sensitivity and Specificity Inferential Statistics Analysis of Variance Repeated Measures Data Analysis Software Post Hoc Analysis Power Analysis Experimental Studies Motion Capture Middle Aged: 45-64 years Aged: 65+ years Female Male ab: Introduction: Age-related motor decline is particularly evident during complex movements that require sequencing and bimanual coordination. The one-target advantage (OTA), in which single-target movements are typically initiated faster than the first segment of a two-target sequence, provides a useful framework for assessing planning demands in older adults. Methods: We examined whether task complexity and brief auditory or vibrotactile feedback delivered at the first target contact influence sequential reaching performance in 24 older adults (67.46 ± 5.41 years). Participants completed one- and two-target reaching tasks under three feedback conditions (no feedback, auditory feedback, or vibrotactile feedback) across movement types varying in complexity, including extension, reversal, unimanual, and bimanual movement sequences. Outcome measures included movement preparation, movement execution, movement transitions, kinematic measures, and endpoint accuracy. Results: Vibrotactile feedback selectively improved performance by shortening reaction time in the unimanual extension task relative to one-target movements, effectively reversing the typical OTA pattern. Vibrotactile feedback also increased peak velocity and altered kinematic control during the second movement segment. In contrast, movement time to the first target remained unchanged, whereas movement time to the second target increased with task complexity and was longest during bimanual conditions. Endpoint accuracy and consistency remained stable across feedback and task conditions, indicating that the kinematic benefits of vibrotactile feedback did not occur at the expense of either endpoint accuracy or endpoint consistency. Discussion: Overall, brief vibrotactile cues enhanced movement preparation and kinematic control in older adults during sequential reaching, particularly under higher coordination demands. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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