Effects of a Dual-Task Paradigm and Gait Velocity on Dynamic Gait Stability during Stair Descent
Source abstract
Abstract
Falls during stair negotiation have become one of the leading causes of accidental death. The effects of a concurrent cognitive or manual dual-task paradigm on dynamic gait stability remain uncertain. How much dynamic gait stability is influenced by gait velocity is also not clear. A total of 16 healthy young females descended a staircase under three different walking conditions: descend stairs only (single task), descend stairs while performing subtraction (cognitive dual-task), and descend stairs while carrying a glass of water (manual dual-task). An eight-camera Vicon motion analysis system and a Kistler force plate embedded into the third step of the staircase were used synchronously to collect kinematic and kinetic data. Gait velocity decreased and dynamic gait stability increased with both cognitive and manual dual-task conditions. The center of mass–center of pressure inclination angle increased with gait velocity but decreased with the manual dual-task condition compared to the single-task condition. Changes in gait velocity caused by the dual-task paradigm can partially explain the effects of dual-task dynamic gait stability. The influence of gait velocity should be considered in the assessment of dual-task effects.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Balance, Gait, and Falls Prevention · Injury Epidemiology and Prevention · Traffic and Road Safety
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Kinesiology and Health Science, Shandong Sport University, Jinan 250102, China
Department of Health Sciences and Kinesiology, Waters College of Health Professions, Georgia Southern University, Statesboro, GA 30460, USA
Shandong Institute of Sport Science, Jinan 250102, China
Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
School of Kinesiology, Shanghai University of Sport, Shanghai 2000438, China
Funding
Key Technology Research and Development Program of Shandong · National Natural Science Foundation of China · China Scholarship Council
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