1Student, Dept. Physical Therapy, Sun Moon Univeresity, Asan-si, 31460, Republic of Korea
2Professor, Dept. Physical Therapy, Sun Moon Univeresity, Asan-si, 31460, Republic of Korea
*Corresponding Author: Ji Heon Hong, hgh1020@hanmail.net
Online published on 27 March, 2020.
The purpose of this study was to investigate the activity of the spinal muscles according to the pelvic tilt angle and to identify the muscles affecting the posture.
Thirty healthy young adults participated in this study. The muscle activity and pelvic tilting of the erector spinea were measured using electromyography and inertial sensor. One-way repeated ANOVA was used to compare muscle activity of each muscle according to pelvic tilting angle.
The muscle activity of the three muscles of the spine showed a significant difference between posterior tilting and anterior tilting of the pelvic (p<0.05). In other words, it showed higher muscle activity in anterior tiling. Iliocostalis lumborum showed lower muscle activity in the sitting position, although the range of motion of the pelvic was larger in the sitting position than in the standing position.
Appropriate muscle activity of the iliocostalis lumborum in the sitting position should be considered for weight-bearing reduction of the lumbar spine and prevention of musculoskeletal disorders of the spine.
Pelvic tilting, Erector spinae, Iliocostalis thoracis, Iliocostalis lumborum, Longissimus thoracis,
