[Purpose] The purpose of this research is to investigate the effect of the method of
bridge exercise on the change of rectus abdominis muscle and the muscle activity of
paraspinal muscles while doing treadmill walking with high heels. [Subjects and Methods]
The subjects of this research are healthy female students consisting of 10 persons
performing bridge exercises in a supine group, 10 persons performing bridge exercises in a
prone group, and 10 persons in a control group while in S university in Busan. Bridge
exercise in supine position is performed in hook lying position. Bridge exercise in prone
position is plank exercise in prostrate position. To measure the strength of rectus
abdominis muscle, maintaining times of the posture was used. To measure the muscle
activity of paraspinal muscles, EMG (4D-MT & EMD-11, Relive, Korea) was used.
[Results] The strength of rectus abdominis muscle of both bridge exercises in the supine
group and bridge exercises in the prone group increases significantly after exercise. The
muscle activity of paraspinal muscle such as thoracic parts and lumbar parts in bridge
exercises in the prone group decreases statistically while walking on a treadmill with
high heels. Muscle activity of thoracic parts paraspinal muscle and bridge exercises in
the supine group decreased significantly. [Conclusion] According to this study, we noticed
that bridge exercise in a prone position is desirable for women who prefer wearing high
heels as a back pain prevention exercise method.