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Asian J Beauty Cosmetol > Accepted Articles

doi: https://doi.org/10.20402/ajbc.2017.0165    [Accepted]
Effects of Daily Intentional Abdominal Muscle Contraction in Pilates Participants with Real-Time Feedback on Body Composition and Trunk Stability
Jae-Hyeon Seong1, Chang-Beom Kim2
1Department of Rehabilitation Center, Daejeon Wellness Hospital, Daejeon, Korea
2Department of Physical Therapy, Daewon University, Jecheon-si, Chungcheongbuk-do, Korea
Corresponding author:  Jae-Hyeon Seong ,Tel: +82 10 6485 1480, Fax: +82 42 712 8599 , Email: sjh2356@hanmail.net
Received: July 14, 2017;  Accepted: October 31, 2017.  Published online: February 13, 2018.
The purpose of this study was to provide pilates participants with real-time feedback about their intentional abdominal muscle contractions to enable them to practice these contractions in daily life. The study also investigated the effects of intentional abdominal muscle contraction accompanied by real-time feedback on body composition and trunk stability.
Thirty-one Pilates participants were divided into an experimental group (n=16) that was provided with real-time feedback and a control group (n=15) that did not receive feedback. Participants’ body composition and trunk stability were evaluated before and after the experiment. Both groups performed pilates exercises over an 8-week period. Only the experimental group was provided with real-time feedback on the changes to their waist circumference.
During body composition evaluation, the experimental group showed statistically significant declines in weight, body mass index, body fat percentage, and waist-hip ratio, whereas the control group exhibited no statistically significant differences in any of these variables. The experimental group experienced significantly larger declines in their body fat percentage and waist-hip ratio compared with the control group. On trunk stability evaluation, the experimental group showed statistically significant increases in trunk extension, trunk flexion, and the left side bridge after the experiment, whereas the control group exhibited a statistically significant increase only in the left side bridge. There were no statistically significant between-group differences for any of the variables.
The experimental group, which performed intentional abdominal muscle contractions with real-time feedback, showed improved body composition and trunk stability, including improved body fat percentage and waist-hip ratio. These results indicate that providing intentional abdominal muscle contraction in addition to pilates exercises could provide both physical and cosmetic benefits, assisting practitioners in providing body shape and trunk stability improvements.
Key words: Pilates, Real-time feedback, Body composition, Trunk stability, Intentional abdominal muscle contraction
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