An interrater reliability study of gait analysis systems with the dual task paradigm in healthy young and older adults

  • Background and aims: One reason for the controversial discussion of whether the dual task (DT) walking paradigm has an added value for diagnosis in clinical conditions might be the use of different gait measurement systems. Therefore, the purpose was 1) to detect DT effects of central gait parameters obtained from five different gait analysis devices in young and old adults, 2) to assess the consistency of the measurement systems, and 3) to determine if the absolut and proportional DT costs (DTC) are greater than the system-measurement error under ST. Methods: Twelve old (72.2 ± 7.9y) and 14 young adults (28.3 ± 6.2y) walked a 14.7-m distance under ST and DT at a self-selected gait velocity. Interrater reliability, precision of the measurement and sensitivity to change were calculated under ST and DT. Results: An age effect was observed in almost all gait parameters for the ST condition. For DT only differences for stride length (p < .029, ɳ2p = .239) as well as single and double limb support (p = .036, ɳ2p = .227; p = .034, ɳ2p = .218) remained. The measurement systems showed a lower absolute agreement compared to consistency across all systems. Conclusions: When reporting DT effects, the real changes in performance and random measurement errors should always be accounted for. These findings have strong implications for interpreting DT effects.

Download full text files

Export metadata

Author:Thomas J. Klotzbier, Bettina Wollesen, Oliver Vogel, Julian Rudisch, Thomas Cordes, Thomas Joellenbeck, Lutz VogtGND
Parent Title (English):European review of aging and physical activity
Place of publication:Berlin ; Heidelberg
Document Type:Article
Date of Publication (online):2021/08/03
Date of first Publication:2021/08/03
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2022/03/24
Tag:Cognitive-motor interference; Dual task walking; Gait analysis; Minimal detectable change; Older adults; Verbal fluency
Issue:art. 17
Page Number:12
First Page:1
Last Page:12
Open Access funding enabled and organized by Projekt DEAL.
The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated in a credit line to the data.
Institutes:Psychologie und Sportwissenschaften
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Licence (German):License LogoCreative Commons - Namensnennung 4.0