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KMID : 1012020220110020136
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Physical Therapy Rehabilitation Science
2022 Volume.11 No. 2 p.136 ~ p.144
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The Effect of Abdominal Drawing-in Maneuver with Pressure Biofeedback Unit in Various Postures on Abdominal Muscle Contraction
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Lee Seung-Hoon
Lee Sang-Yeol
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Abstract
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Objective: This study was to identify the effect of pressure biofeedback applied in various postures that allow the application of abdominal drawing-in.
Design: A cross sectional study.
Methods: The study intended to compare changes in the thickness of abdominal muscles between different postures when abdominal drawing-in was performed using a pressure biofeedback unit in five postures and to compare differences in terms of measures such as the transverse abdominis’s preferential activation ratio(PAR). Data measured from 30 healthy individuals were used for data analysis. A paired t-test and repeated measures analysis of variance was performed to compare the thickness of each abdominal muscle.
Results: The transverse abdominis’s and internal oblique’s thickness showed statistically significant differences in all postures when abdominal drawing-in (p<0.05). In the comparison between the postures, statistically significant differences were observed between the positions of hook-lying and wall support standing and between supine and wall support standing and between hook-lying and sitting (p<0.05). In terms of the transverse abdominis’s PAR in each posture, statistically significant differences were observed between hook-lying and quadruped, hook-lying and sitting, hook-lying and wall support standing, quadruped and supine, sitting and supine, as well as wall support standing and supine (p<0.05).
Conclusions: When abdominal drawing-in using pressure biofeedback unit is performed for stabilization exercises, selecting and applying specific postures according to targeted muscles and the subject’s functional ability will help provide a more efficient and accurate intervention.
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KEYWORD
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Abdominal drawing-in, Pressure biofeedback, Abdominal muscle, Various postures
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