title: Allocation of Attentional Resources toward a Secondary Cognitive Task Leads to Compromised Ankle Proprioceptive Performance in Healthy Young Adults.
abstract: The objective of the present study was to determine whether increased attentional demands influence the assessment of ankle joint proprioceptive ability in young adults. We used a dual-task condition, in which participants performed an ankle ipsilateral position-matching task with and without a secondary serial auditory subtraction task during target angle encoding. Two experiments were performed with two different cohorts: one in which the auditory subtraction task was easy (experiment 1a) and one in which it was difficult (experiment 1b). The results showed that, compared with the single-task condition, participants had higher absolute error under dual-task conditions in experiment 1b. The reduction in position-matching accuracy with an attentionally demanding cognitive task suggests that allocation of attentional resources toward a difficult second task can lead to compromised ankle proprioceptive performance. Therefore, these findings indicate that the difficulty level of the cognitive task might be the possible critical factor that decreased accuracy of position-matching task. We conclude that increased attentional demand with difficult cognitive task does influence the assessment of ankle joint proprioceptive ability in young adults when measured using an ankle ipsilateral position-matching task.
authors: Global Robot Academia Laboratory, Green Computing Systems Research Organization, Waseda University, 27 Waseda-cho, Shinjuku-ku, Tokyo 162-0042, Japan.
authors: Kazuhiro
authors: K
authors: Yasuda
authors: Global Robot Academia Laboratory, Green Computing Systems Research Organization, Waseda University, 27 Waseda-cho, Shinjuku-ku, Tokyo 162-0042, Japan.
authors: Yuki
authors: 0000-0002-3094-8017
authors: Y
authors: Sato
authors: Graduate School of Creative Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
authors: Naoyuki
authors: N
authors: Iimura
authors: Graduate School of Creative Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 169-8555, Japan.
authors: Hiroyasu
authors: H
authors: Iwata