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Effects of Instability Tools on Muscles Activities in Lunge Exercise in Healthy Adult Males
J Kor Phys Ther 2019;31(6):363-367
Published online December 30, 2019;
© 2019 The Korea Society of Physical Therapy.

KwangSu Kim1, JaeHong Lee2, JinHwan Lee2, JaeKwang Lee1

1Department of Physical Therapy, Graduate School, Daegu Catholic University; 2Department of Physical Therapy, Daegu Health College, Daegu, Korea
Jae-Hong Lee E-mail
Received November 13, 2019; Revised December 21, 2019; Accepted December 30, 2019.
This is an Open Access article distribute under the terms of the Creative Commons Attribution Non-commercial License (Http:// which permits unrestricted non-commercial use, distribution,and reproduction in any medium, provided the original work is properly cited.
Purpose: This study was to investigate the effect of instability on the activation of lower limb muscles during lunge exercise.
Methods: The study subjects were healthy twenties and were selected to have no orthopedic or neurological diseases. 1) Flat lunge exercise (Lunge 1, 2) Lunge exercise on TOGU (Lunge 2, 3) Holding the olympic bar and moving the lunge on TOGU (Lunge 3, 4) Holding the Surge and moving the lunge on TOGU (Lunge 4). Through the above four actions, we can see how the top-down instability influences the lower limb unlike the Bottom-up instability. EMG attachment sites were gluteus medius, vastus medialis, gastrocnemius, tibialis anterior.
Results: These result suggest that exercise using Lunge 4 activity was the highest in muscle activity compared to other exercises, but vastus medialis showed the highest muscle activity in Lunge 2 exercise(p<0.05).
Conclusion: This study showed the muscular activity of the lower extremities according to the lunge exercise using the instability tools.
Keywords : Electromyography, Balance exercise, Lunge exercise, Top-down exercise

December 2019, 31 (6)
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