title: Selective Activation of Lumbar Paraspinal Muscles during Various Exercises in the Prone Position as Measured by EMG.
abstract: [Purpose] This study compared the effects of three exercises performed in a prone position on the selective activation of the lumbar erector spinae (LES) and lumbar multifidus (LM) muscles in healthy males to investigate the effective method for selective activation of the LM. [Subjects] Twenty-two healthy males were recruited. Surface EMG data were collected from the right LES and LM muscles during three exercises: 1) trunk extension, 2) hip extension, and 3) the arm lift. [Results] The ratio of LM to LES EMG activity during hip extension was higher than those during trunk extension and the arm lift. [Conclusion] Hip extension in a prone position may be effective for selective activation of the lumbar multifidus muscles in healthy males.
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 Rehabilitation Science, Graduate School, Inje University, Republic of Korea.
authors.forename: Min-Hyeok
authors.initials: MH
authors.lastname: Kang
authors.affiliation: Department of Physical Therapy, Nambu University, Republic of Korea.
authors.forename: Ji-Won
authors.initials: JW
authors.lastname: Kim
authors.affiliation: Department of Rehabilitation Science, Graduate School, Inje University, Republic of Korea.
authors.forename: Dong-Kyu
authors.initials: DK
authors.lastname: Lee
authors.affiliation: Department of Occupational Therapy, Dongseo University, Republic of Korea.
authors.forename: Tae-Hyung
authors.initials: TH
authors.lastname: Yoon
authors.affiliation: Department of Physical Therapy, College of Biomedical Science and Engineering, INJE University Ubiquitous-healthcare & Anti-aging Research Center, Inje University, Republic of Korea.
authors.forename: Jae-Seop
authors.initials: JS
authors.lastname: Oh
keywords: Lumbar erector spinae; Lumbar multifidus; Selective activation