Effect of abdominal drawing-in maneuver with prone hip extension on muscleactivation of posterior oblique sling in normal adults

摘要

[Purpose] There have been many studies on ipsilateral erector spinae in regard of pronehip extension (PHE). However, mediating methods have been focusing on the reinforcement ofgluteus. Hereupon, this study is intended to identify how an increase of abdominaldrawing-in maneuver influences on posterior oblique sling (POS) and suggest a mediatingmethod to effectively reinforce them. [Participants and Methods] This study has beenconducted on normal male (10) and female (10), and participants were asked to prove PHEexercise and abdominal drawing-in maneuver prone hip extension exercise (ADIM PHE).Surface electromyography (EMG) was recorded from the contralateral latissimus dorsi,ipsilateral erector spinae, ipsilateral gluteus maximus, and ipsilateral biceps femoris. Apared t-test was used to compare muscle activity POS. [Results] EMG activity of thecontralateral latissimus dorsi, ipsilateral gluteus maximus was significantly greaterperformed ADIM PHE than PHE. As for ipsilateral erector spinae muscle, ipsilateral bicepsfemoris activation was lower in ADIM PHE than PHE. [Conclusion] According to the resultsof this study, abdominal drawing-in maneuver seems to be an important factor thatinfluences on muscular activation of POS.