Background: Lumbopelvic stability is highly important for exercise therapy for patients with low back pain and shoulder dysfunction. It can be attained using a pelvic compression belt. Previous studies showed that external pelvic compression (EPC) enhances form closure by reducing sacroiliac joint laxity and selectively strengthens force closure and motor control by reducing the compensatory activity of the stabilizer. In addition, when the pelvic compression belt was placed directly on the anterior superior iliac spine, the laxity of the sacroiliac cephalic joint could be significantly reduced.
Objects: This study aimed to compare the effects of EPC on lumbopelvic and shoulder muscle surface electromyography (EMG) activities during push-up plus (PUP) and deadlift (DL) exercise, trunk extensor strength during DL exercise.
Methods: Thirty-eight subjects (21 men and 17 women) volunteered to participate in this study. The subjects were instructed to perform PUP and DL with and without the EPC. EMG data were collect from serratus anterior (SA), pectoralis major (PM), erector spinae (ES), and multifidus (MF). Trunk extensor strength were tested in DL exercise. The data were collected during 3 repetitions of all exercise and the mean of root mean square was used for analysis.
Results: The EMG activities of the SA and PM were significantly increased in PUP with pelvic compression as compared with PUP without pelvic compression (p<.05). In DL exercise, a significant improvement in trunk extensor strength was observed during DL exercise with pelvic compression (p<.05).
Conclusion: The results of this study indicate that lumbopelvic stabilization reinforced with external pelvic compression may be propitious to strengthen PUP in more-active SA and PM muscles. Applying EPC can improve the trunk extensor strength during DL exercise. Our study shows that EPC was beneficial to improve the PUP and DL exercise efficiency.

Abstract
 Ⅰ. 서론
 Ⅱ. 연구방법
  1.연구대상자
  2. 연구 절차
  3. 측정 도구 및 방법
  4. 분석방법
 Ⅲ. 결과
  1. 연구대상자의 일반적 특성
  2. 골반압박 적용 유무에 따른 푸쉬업플러스 운동 시 각 근육의 근활성도 비교
  3. 골반압박 적용 유무에 따른 데드리프트 운동시 각 근육의 근활성도 비교
 Ⅳ. 고찰
 Ⅴ. 결론
 References

• 김선엽(대전대학교 보건의료과학대학 물리치료학과) | Suhn-yeop Kim (Dept. of Physical Therapy, College of Health and Medical Science, Daejeon University) Corresponding author
• 황천종(대전대학교 대학원 물리치료학과) | Tian-zong Huang (Dept. of Physical Therapy, Graduate School, Daejeon University)