- Volume 10 Issue 2
PURPOSE: The purpose of this study is to compare ultrasound images of trunk muscles according to gender in healthy subjects. METHODS: Twenty six subjects(13 males and 13 females) were enrolled in this study. The thickness of trunk muscles was measured for transverse abdominis (TrA), external oblique abdominis (EOA), internal oblique abdominis (IOA), and multifidus (MF) using ultrasound. The thickness of the muscles was measured for the length of cross-section except for fascia. The muscle thickness wasmeasured at the both side, then the mean value was calculated. Also, each of trunk muscle wasanalysed by echodensity, white area index. RESULTS: As a results, there was significant difference in muscle thickness of EOA, IOA according to gender (p<0.05). The male was significant increase than female of EOA, IOA in muscle thickness. There was significant difference in echo intensity of TrA, MF according to gender(p<0.05). The female was significant increase than male of TrA, MF in echo intensity. There was significant difference in white area index of EOA according to gender(p<0.05). The female was significant increase than male of EOA in white area index. CONCLUSION: The findings of this study suggest that healthy male have a greater EOA, IOA trunk muscle thickness than female. However, the difference of muscle quality between male and female was showed through thisexperiment. Therefore, the ultrasonography images will be useful tool for seeing quantitative and qualitative difference of trunk muscles according to gender.
Ultrasonography;Muscle thickness;Echodensity;White area index
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