|
KMID : 1035420230110010021
|
|
Journal of The Korean Society of Integrative Medicine
2023 Volume.11 No. 1 p.21 ~ p.29
|
|
|
The Effects of Dual Task Performance on Balance and Muscle Activity in Adults with Ankle Instability with Smartphones
|
|
Kim Min-Kyu
Yang Hoe-Song
Yoo Young-Dae
Kang Hyo-Jung
Jeong Chan-Joo
|
|
|
Abstract
|
|
|
Purpose : Using a smartphone while walking districts attention and increases the risk of losing balance or falling. Ankle instability is caused by decreased muscle strength and decreased neuromuscular ability leading to postural control problems. Dual tasks increases the risk of falls by reducing postural control in adults with ankle instability. This study aimed to investigate the effect of performing a dual task on balance and muscle activity in adults with ankle instability using a smartphone.
Methods : Forty-nine individuals with ankle instability participated in this study. A game of finding the wrong picture was performed using a smartphone in the dual task, and only looking at the blank screen of a smartphone was evaluated in the single task. The participants randomly performed single and dual task to evalutate balance and muscle atcitivy. Balance was evaluated using the Biodex balance system (BBS), and muscle activity was evaluated using surface EMG. Muscle activity of the gastrocnemius and tibialis anterior was measured at the same time as balance.
Results : The results of this study showed that overall, anteior/posterior, and medial/lateral balance indices all showed significant differences when performing the dual task compared with those during the single task (p<.05). The muscle activity results showed a significant difference compared with that of the gastronemius muscle on the nondominant side during the dual task (p>.05).
Conclusion : The results of this study showed that maintaining balance is more difficult when performing the dual task than during the single task, and only the muscle activity of the nondominant gastrocnemius muscle decreased. The dual task causes a decrease in concentration for postural control, which negatively affects postural stability. Individuals with ankle ankle instability should refrain from performing dual tasks, such as using smartphones, to prevent ankle damage.
|
|
|
KEYWORD
|
|
|
ankle instability, balance, EMG, smart phones
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|