Yang Jiankang, Yan Shifang, Cao Chuanbao
Department of Physical Education, College of Sports and Arts, Dong-A University, Busan 49315, Republic of Korea.
Department of Wushu, Hebei Sport University, Shijiazhuang 050000, Hebei, China.
Appl Bionics Biomech. 2024 Mar 11;2024:9942042. doi: 10.1155/2024/9942042. eCollection 2024.
This study aimed to compare the impacts of different dual-task paradigms on the postural control ability and dynamic stability of the youth during stair descent.
Twenty young adults without regular exercise habits were randomly recruited to perform stair descent tasks with three different paradigms: single-task, cognitive dual-task, and manual dual-task. Kinematic and dynamic data were collected using an 8 Vicon motion analysis system and a Kistler force plate to evaluate postural control ability and dynamic stability during stair descent.
The variation trends of lower limb joint moment were similar under the three task models. Compared with a single-task, both dual-task paradigms significantly reduced the mechanical parameters and dynamic stability during stair descent.
The dual-task paradigm increases the risk of stair-related falls. Both cognitive and manual tasks have similar impacts on postural control ability and dynamic stability during stair walking. It is recommended that people avoid performing dual tasks during stair descent.
本研究旨在比较不同双任务范式对年轻人下楼梯时姿势控制能力和动态稳定性的影响。
随机招募20名无规律运动习惯的年轻人，采用三种不同范式进行下楼梯任务：单任务、认知双任务和手动双任务。使用8台Vicon运动分析系统和一块Kistler测力台收集运动学和动力学数据，以评估下楼梯过程中的姿势控制能力和动态稳定性。
三种任务模型下下肢关节力矩的变化趋势相似。与单任务相比，两种双任务范式均显著降低了下楼梯过程中的力学参数和动态稳定性。
双任务范式增加了与楼梯相关的跌倒风险。认知任务和手动任务对下楼梯时的姿势控制能力和动态稳定性有相似的影响。建议人们在下楼梯时避免执行双任务。
