본 연구는 미중 경쟁이 심화되고 있는 오늘날, 동남아시아를 포괄한 동아시아 지역에 있어 일본의 원조 이념 변화가 미친 정책적 영향이 무엇이고 어떠한 함의를 가지고 있는가에 대한 질문에서 출발했다. 이 에 대한 연구의 주요 결론은 다음과 같다. 2000년대 이후 일본은 '원 조 이념의 변화'를 추진했고 이를 통해 기존의 '비군사화 규범' 중심의 원조 이념에서 벗어나 안전보장 규범을 적극적으로 수용했으며, 특히 해상법집행에 중점을 두고 동남아시아 국가의 해양능력구축을 지원하 고 있다. 이제까지 방산수출을 통한 접근은 전무하다고 보아도 좋을 정 도로 제한적이었으나, 원조 이념의 변화와 함께 방위장비 해외이전이 자유로워지고 '원조화'하면서 장기적으로는 변화의 가능성이 보이고 있 다. 한국은 일본의 사례를 참고하면서, 동남아시아 역내 국가들의 수요 와 우려가 무엇인지를 상대국 입장에서 파악하는 해양능력구축 지원을 추진할 필요가 있다.

Background: A forward head posture (FHP) is one of the most common types of poor head posture in patients with neck disorder. A prolonged FHP might increase pressure on the posterior cranio-cervical structure and exhibit reduced performance on a cranio-cervical flexion test (CCFT). CCFT is included to activate deep cervical flexor muscles and inhibit excessive activation of superficial cervical flexor muscles. Therefore, the selective activation of deep cervical flexors is needed for effective exercise for FHP. Objects: The purpose of this study was to compare muscle thickness between longus colli (Lco) and sternocleidomastoid (SCM) using ultrasonography in subjects with FHP depending on head support. Methods: This was a cross-sectional, case-control research design study. The ultrasonographic images of Lco and SCM were taken in 17 subjects with FHP during the 5 phases of the CCFT with and without a head support. Towel was used for supporting head to make the neutral head position in supine. Changes in muscle thickness during the test were calculated to infer muscle activation. Data were analyzed using repeated measures of two-way analysis of variance with the significance level of .05. Results: When subjects performed the CCFT with head support, there was a significant difference in muscle thickness of Lco and SCM (p<.05). According to a post hoc paired t-test, change of thickness of Lco was greater at all phases, and change of thickness of SCM muscle was less at phase 4 and 5 in condition with head support (p<.01) compared to condition without head support (p<.01). Conclusion: The result of this study suggest that applying head support for neutral head position during CCFT could be a useful method for activating Lco muscle without excessive activation of SCM muscle.