Dual-task cost and related clinical features in patients with multiple sclerosis


ÖZKUL Ç., Guclu-Gunduz A., ELDEMİR K., Apaydin Y., GÜLŞEN Ç., YAZICI G., ...More

Motor Control, vol.25, no.2, pp.211-233, 2021 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.1123/mc.2020-0035
  • Journal Name: Motor Control
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, IBZ Online, CINAHL, EMBASE, MEDLINE, Psycinfo, SportDiscus
  • Page Numbers: pp.211-233
  • Keywords: balance, cognition, manual dexterity, walking
  • Lokman Hekim University Affiliated: Yes

Abstract

© 2021 Human Kinetics, Inc.This study aimed to investigate the dual-task cost of both motor and cognitive performances in patients with multiple sclerosis (PwMS) and in healthy controls and to determine their relationships with clinical features in PwMS. The participants performed motor tasks (postural stability, walking, and manual dexterity) and cognitive tasks (mental tracking and verbal fluency) under single- and dual-task conditions. The results showed that postural stability under dual-task conditions did not change, whereas walking and manual dexterity deteriorated, regardless of the concurrent cognitive task, in PwMS (median Expanded Disability Status Scale score: 1) and the healthy controls. Verbal fluency decreased during postural stability, whereas it increased during walking, and it was maintained during manual dexterity in both groups. Mental tracking did not change during walking; it declined during manual dexterity in both groups. Mental tracking during postural stability deteriorated in PwMS, while it did not change in the healthy controls. In general, dual-task costs were associated with baseline performances of tasks rather than clinical features. Therefore, baseline performances of both tasks should be increased for improving dual-task performance in PwMS.