[Purpose] This study aims to examined the effect of the self-myofascial release induced
with a foam roller on the reduction of stress by measuring the serum concentration of
cortisol. [Subjects and Methods] The subjects of this study were healthy females in their
20s. They were divided into the experimental and control groups. Both groups, each
consisting of 12 subjects, were directed to walk for 30 minutes on a treadmill. The
control group rested for 30 minutes of rest by lying down, whereas the experimental group
was performed a 30 minutes of self-myofascial release program. [Results] Statistically
significant levels of cortisol concentration reduction were observed in both the
experimental group, which used the foam roller, and the control group. There was no
statistically significant difference between the two groups. [Conclusion] The
Self-myofascial release induced with a foam roller did not affect the reduction of
stress.