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Research Journal of Pharmacy and Technology
Year : 2018, Volume : 11, Issue : 4
First page : ( 1370) Last page : ( 1374)
Print ISSN : 0974-3618. Online ISSN : 0974-360X.
Article DOI : 10.5958/0974-360X.2018.00255.X

Comparison between sit-up and Bridging Exercises on Trunk Muscles Response During Sudden Impact Loading

Jeong Yun Gyeong, Hwang Jin Ha, Kim Jin Seop, Hong Ji Heon, Lee Dong Yeop, Yu JaeHo*

Dept. of Physical therapy, Sun Moon University, Korea

*Corresponding Author E-mail: naresa@sunmoon.ac.kr

Online published on 24 July, 2018.



The aim of the this study is to explore the comparison between sit-up and bridging exercise on trunk muscle response during sudden impact loading.

Methods/Statistical analysis

The subjects were twelve healthy men and twelve healthy women who currently attending S University in Asan, Chungnam. Electromyography(EMG) attachment location was on four areas transverse abdominis(TrA), rectus abdominis(RA), erector spine(ES), multifidus(MF). The load was given when the subjects had their eyes open(EO) and after eyes close(EC) with auditory input was cutted out.


As a result, there were statistically significant differences in TrA, RA, MF muscles in EC condition during the sit-up and bridging exercise(p<.05). But there was no difference in other variables.


In conclusion, this study suggests that when there are sudden external stimulus during sit-up exercise, due to the compensatory mechanism, the MF suddenly activates to cause microtrauma.



Bridging, Sit-up, Low back pain, Microtrauma, Loading, Lantency, Trunk muscle.


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