2019 Volume 34 Issue 1 Pages 75-78
[Purpose] The purpose of this study was to examine the gender-related difference in abdominal trunk muscle brightness of ultrasonic images of healthy young adults. [Participants and Methods] The subjects were 25 healthy males (mean age, 23.2 ± 3.0 years) and 28 females (mean age, 23.3 ± 2.5 years). The muscle brightness of the rectus abdominis and transverse abdominal muscles at rest were compared between the sexes. [Results] No significant difference in the muscle brightness of the abdominal trunk muscle was found between the male and female subjects. However, the brightness of the rectus abdominis and abdominal transverse muscles of the female subjects was significantly lower. [Conclusion] No significant gender-related difference was found in the muscle brightness of the abdominal trunk muscles of the healthy adults in this study. We consider that this is because the subjects were healthy adults. In the future, gender-related differences in abdominal trunk muscle brightness by age should be examined.