Influence of a concurrent cognitive task on foot pedal reaction time following traumatic, unilateral transtibial amputation.
DOI:
https://doi.org/10.2340/16501977-0880Keywords:
amputation, automobile driving, reaction time, neuronal plasticity.Abstract
OBJECTIVE: To evaluate the influence of a secondary task on foot pedal reaction time, movement time and total response time in patients with transtibial amputation. DESIGN: Controlled trial without randomization. SUBJECTS: Ten patients with transtibial amputation and 13 age-matched controls. METHODS: Foot pedal reaction time and movement time were measured for both legs under simple and dual-task conditions. OBJECTIVE: To evaluate the influence of a secondary task on foot pedal reaction time, movement time and total response time in patients with transtibial amputation. DESIGN: Controlled trial without randomization. SUBJECTS: Ten patients with transtibial amputation and 13 age-matched controls. METHODS: Foot pedal reaction time and movement time were measured for both legs under simple and dual-task conditions. RESULTS: While mean simple reaction time was similar for both groups (258 (standard deviation (SD) 53) vs 239 (SD 34) ms), a group by reaction time condition interaction (p < 0.05)identified a disproportionately greater mean dual-task effect among patients with transtibial amputation (432 (SD 109)vs 317 (SD 63) ms), apparently affecting the prosthetic and intact legs equally (426 (SD 110) vs 438 (SD 107) ms). Among patients with transtibial amputation faster movement time was achieved with the intact leg (185 (SD 61) vs 232 (SD 58)ms, p < 0.0001). Compared with controls, patients with transtibialamputation demonstrated impaired mean movement time (142 (SD 37) vs 208 (SD 64) ms, p < 0.001) and total response time (420 (SD 80) vs 552 (SD 151) ms, p < 0.001) regard less of reaction time condition. CONCLUSION: This study appears to have identified a functional manifestation of central reorganization following patients with transtibial amputation, affecting the prosthetic and intact lower limbs equally.Downloads
Downloads
Published
How to Cite
Issue
Section
License
All digitalized JRM contents is available freely online. The Foundation for Rehabilitation Medicine owns the copyright for all material published until volume 40 (2008), as from volume 41 (2009) authors retain copyright to their work and as from volume 49 (2017) the journal has been published Open Access, under CC-BY-NC licences (unless otherwise specified). The CC-BY-NC licenses allow third parties to copy and redistribute the material in any medium or format and to remix, transform, and build upon the material for non-commercial purposes, provided proper attribution to the original work.
From 2024, articles are published under the CC-BY licence. This license permits sharing, adapting, and using the material for any purpose, including commercial use, with the condition of providing full attribution to the original publication.