Abstract
[Purpose] This study investigated the correlations among sacral angle (SA), lumbar lordosis (Lo), maximum contractility of the transverse abdominis (TrA), and the static and dynamic lumbar stability (SLS and DLS) in college students in their 20s. [Subjects] The subjects were 40 college students (20 males and 20 females) in their 20s. [Methods] Lateral view radiographs were used to analyze the SA, Lo, flexion (Fle), extension (Ex), and the range of Fle and Ex motions (RFEM). The PBU (Pressure biofeedback unit) was used to examine SLS and DSL. The Oswestry Disability Index (ODI) was used to evaluate lumbar pain and physical functions. [Results] As SA increased, Lo, Ex and RFEM increased. As Fle increased, RFEM increased while ODI decreased. The results of this study indicate that as Ex increases, RFEM and DLS also increase, and as RFEM increases, DLS increases while ODI decreases. [Conclusion] The results indicate that the lumbar spine’s posture and range of motion affects DLS rather than SLS. In particular, it is thought that therapeutic approaches for increasing Ex and RFEM should be considered.
