نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشـتی، تهران، ایران
2 مرکز تحقیقات فیزیوتراپی، گروه فیزیوتراپی، دانشکده علوم توانبخشی، دانشگاه علوم پزشکی شهید بهشتی، تهران، ایران
3 دانشکده علوم ورزشی دانشگاه بیرجند، بیرجند، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Background and aims: Several studies have investigated gait biomechanics in people with functional ankle instability (FAI). However, the potential role of central processing (attention) in the gait control of these patients is still unknown. Therefore, this study aimed to investigate the effect of cognitive load on the range of motion (ROM) of lower limb joints during walking in people with and without functional ankle instability.
Materials and methods: Eighteen male subjects with FAI and nineteen healthy subjects participated in this study and completed three randomized conditions (three trials per condition): (1) normal walking on a motor-driven treadmill, (2) normal walking while performing a cognitive task, and (3) the same cognitive task while sitting. Three-dimensional information of hip, knee, and ankle joint ROM in sagittal, frontal, and transverse planes as kinematic components of walking, error ratio, and average reaction time as cognitive task performance, as well as the intraclass correlation coefficient (ICC) to determine the intrasession reliability of kinematic and cognitive outcome measures, were evaluated.
Results: The reliability of kinematic variables, including the hip, knee, and ankle joint ROM, with and without applying cognitive tasks in three planes was more than 0.70. During the single task, people with FAI significantly decreased knee ROM in the transverse plane and hip ROM in the sagittal plane compared to the healthy group. During the dual task, subjects with FAI significantly increased hip ROM in the sagittal plane compared to the healthy group. The results of the cognitive task showed that compared to healthy people, people with FAI had a longer reaction time in the auditory Stroop test during dual-task walking compared to sitting.
Conclusion: FAI can be an essential factor in cognition-movement interference. Therefore, imposing a cognitive task may be considered an effective strategy in the rehabilitation program of patients with FAI.
کلیدواژه‌ها [English]
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