| Summary: | [Purpose] This study aimed to determine the effect of abdominal muscle activities and the
activation ratio related to trunk stabilization to compare the effects between the
abdominal drawing-in maneuver and lumbar stabilization exercises on an unstable base of
support. [Subjects and Methods] Study subjects were 20 male and 10 female adults in their
20s without lumbar pain, who were equally and randomly assigned to either the abdominal
drawing-in maneuver group and the lumbar stabilization exercise group. Abdominal muscle
activation and ratio was measured using a wireless TeleMyo DTS during right leg raise
exercises while sitting on a Swiss ball. [Results] Differences in rectus abdominis,
external oblique abdominis, and internal oblique abdominis muscle activation were observed
before and after treatment. Significant differences were observed between the groups in
the muscle activation of the external oblique abdominis and internal oblique abdominis,
and the muscle activation ratio of external oblique abdominis/rectus abdominis and
internal oblique abdominis/rectus abdominis. [Conclusion] Consequently trunk stability
exercise enhances internal oblique abdominis activity and increases trunk stabilization.
In addition, the abdominal drawing-in maneuver facilitates the deep muscle more than LSE
in abdominal muscle. Therefore, abdominal drawing-in maneuver is more effective than
lumbar stabilization exercises in facilitating trunk stabilization.
|
|---|