title: Effects of various gait speeds on the latissimus dorsi and gluteus maximus muscles associated with the posterior oblique sling system.
abstract: [Purpose] This study investigated the effect of different gait speeds on the muscle activities of the latissimus dorsi and gluteus maximus muscles in relation to the posterior oblique sling system. [Subjects] We recruited 14 young adult males. [Methods] We measured the left latissimus dorsi muscle activity and right gluteus maximus muscle activity of all subjects while they walked on a treadmill at speeds of 1.5 km/h, 3.5 km/h and 5.5 km/h. [Results] There was a significant increase in latissimus dorsi muscle activity with a treadmill speed of 5.5 km/h compared with 1.5 km/h and 3.5 km/h. The gluteus maximus muscle activity significantly increased in the order of 1.5 km/h < 3.5 km/h < 5.5 km/h. [Conclusion] The present results indicate that arm swing connected to increasing gait speed influences the muscle activity of the lower limbs through the posterior oblique sling system.
authors.affiliation: Department of Physical Therapy, Graduate School, Inje University, Republic of Korea.
authors.forename: Seung-Je
authors.initials: SJ
authors.lastname: Shin
authors.affiliation: Department of Physical Therapy, Graduate School, Inje University, Republic of Korea.
authors.forename: Tae-Young
authors.initials: TY
authors.lastname: Kim
authors.affiliation: Department of Physical Therapy, College of Biomedical Science and Engineering, Inje University, Republic of Korea.
authors.forename: Won-Gyu
authors.initials: WG
authors.lastname: Yoo
keywords: Electromyography; Gait speed; Posterior oblique sling system