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KMID : 1012020220110020245
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Physical Therapy Rehabilitation Science
2022 Volume.11 No. 2 p.245 ~ p.252
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Comparison of Abdominal Muscle Activity Between the Abdominal Bracing Technique Emphasizing Inhalation and the General Bracing Technique and Hollowing Technique
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Yun Kyoung-Up
Jung Ki-Bum
Lee Yong-Woo
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Abstract
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Objective: This study aimed to investigate the abdominal muscle activity difference while performing the abdominal bracing technique focusing on inspiration (abdominal bracing group), the general abdominal bracing technique (general bracing group), and the abdominal hollowing technique (abdominal hallowing group)
Design: A cross-sectional study design.
Methods: Thirty-three healthy participants were recruited for this study. The participants were allocated to 3 different groups; Abdominal bracing group, general bracing group, and abdominal hallowing group. The surface electromyography was placed over the rectus abdominis, external oblique, and internal oblique muscles to collect the activation of abdominal muscles during the trial.
Results: The muscle activity of the abdominal bracing group and general bracing groups was significantly higher in all abdominal muscles than in the abdominal hollowing group (p<0.05) Both rectus abdominis and external oblique muscles showed higher muscle activations in the abdominal bracing group over the general bracing group (p<0.05). However, the ratio of bilateral external obliques and rectus abdominis to bilateral internal obliques was highest when the hollowing technique was applied (p <0.05).
Conclusions: The results of study showed the abdominal bracing technique that emphasized inhalation rather than the abdominal hollowing technique or general abdominal bracing technique increased the activity of the abdominal muscles. Therefore, this study is considered to be a data for effective training if the abdominal bracing technique that emphasizes inhalation is applied as a method to increase the activation of the abdominal muscles.
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KEYWORD
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Electromyography, abdominal muscle, inhalation, core stability, exercise therapy, low back pain
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