title: Comparison of selective electromyographic activity of the superficial lumbar multifidus between prone trunk extension and four-point kneeling arm and leg lift exercises.
abstract: [Purpose] This study examined the selective electromyographic activity of the lumbar paraspinal muscles in healthy male and female subjects in the prone trunk extension (PTE) and four-point kneeling arm and leg lift (FPKAL) exercises to determine the most beneficial exercise for selective activation of the lumbar multifidus (LM). [Subjects and Methods] Twenty healthy male and female subjects participated in this study. Surface electromyographic data were collected from the left-side lumbar erector spinae (LES) and LM muscles during PTE and FPKAL exercises. [Results] The LM/LES ratio related to selective activation of the lumbar paraspinal muscles during the FPKAL exercise was higher than that during PTE. [Conclusion] FPKAL exercise is safe and effective for the selective activation of the LM muscle.
authors.affiliation: Department of Physical Therapy, Graduate School, Inje University, Republic of Korea.
authors.forename: Jun-Seok
authors.initials: JS
authors.lastname: Kim
authors.affiliation: Department of Physical Therapy, Graduate School, Inje University, Republic of Korea.
authors.forename: Min-Hyeok
authors.initials: MH
authors.lastname: Kang
authors.affiliation: Department of Physical Therapy, Haeundae Jaseng Hospital of Oriental Medicine, Republic of Korea.
authors.forename: Jun-Hyeok
authors.initials: JH
authors.lastname: Jang
authors.affiliation: Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University: 607 Obang-dong, Gimhae-si, Gyeongsangnam-do 621-749, Republic of Korea.
authors.forename: Jae-Seop
authors.initials: JS
authors.lastname: Oh
keywords: Lumbar paraspinal muscles; Selective activation; Surface electromyography