Minimal shoe가 달리기 시 하지의 생체역학 및 안전성에 미치는 영향 = The Effects of Minimal Shoe on Lower Extremity Biomechanics and Safety During Running

다국어 초록 (Multilingual Abstract)

The purpose of this study was to determine effects on lower extremity biomechanics and safety of minimal shoe prevailed lately. So this study compared whether differences in rearfoot control variables, impact absorption variables, and pressure distribution variables observed while running barefoot, in conventional running shoes and in minimal shoe.
The subjects employed for this study were 16 healthy college students. Motions of lower extremity at three different shoe conditions were analyzed through 3D cinematography and force platform. Conclusions derived from results were as follows.
Initial pronation and total pronation of rearfoot motion in barefoot and minimal shoes were larger or smaller than in a conventional running shoe and could create impact absorption problems. The compressive angle and the torsion angle in barefoot and minimal shoes were larger than a conventional running shoe and thus made negative effects to foot safeties. Maximum impact forces, loading rate of maximum impact forces, and loading rate of maximum vertical ground reaction forces in minimal shoes were larger than in barefoot and in a conventional running shoe. The regional peak pressure except M6 did not show significant difference in barefoot, minimal shoes, and a conventional shoe, but that of minimal shoes was larger than a conventional running shoe.
The overall results of this study showed that rearfoot control variables and impact absorption variables in minimal shoes were significantly different in a conventional running shoe. Based on this findings, it seems that minimal shoe places runners at greater risk of musculoskeletal injury compared to the conventional running shoe. Also it was determined that minimal footwear designed to mimic barefoot running do not closely mimic the mechanics of barefoot running.

국문 초록 (Abstract)

본 연구는 최근 유행하고 있는 minimal신발이 달리기 시 하지의 생체역학 및 안전성에 어떠한 영향을 미치는가를 알아보는데 그 목적이 있다. 본 연구의 실험에 동원된 피험자는 건강한 남자대학생 16명이었으며 맨발, minimal신발, 일반 런닝화를 대상으로 영상분석장비와 지면반력측정장비를 이용하여 4m/sec의 속도로 달리기를 할 때 하지동작을 촬영하여 분석한 결과 다음과 같은 결론을 얻었다.
발의 초기 회내운동과 총 회내운동은 맨발과 minimal신발의 경우 일반 운동화에 비하여 너무 크거나 작게 나타나서 충격력흡수에 문제가 발생할 수 있다. 압축각과 뒤틀림각은 맨발과 minimal신발이 일반 런닝화에 비하여 더 크게 나타나서 발의 안전성에 부정적인 영향을 미칠수 있다. 최대충격력과 최대충격력부하율, 최대수직지면반력부하율은 minimal신발이 맨발이나 일반 런닝화에 비하여 크게 나타났다. 부위별 최대압력은 M6를 제외하고 전반적으로 통계적인차이를 나타내지 않았지만 minimal신발이 일반 런닝화보다 더 크게 나타났다.
본 연구결과를 종합해볼 때 후족제어변인과 충격흡수변인에서 minimal신발이 일반 런닝화에 비하여 충격력흡수가 잘 안되기 때문에 반복적이고 장기적인 관점에서 부상을 유발할 가능성이 크다고 할 수 있다. 또한 minimal신발이 맨발의 기능과 유사하도록 개발되었다고 하지만 본 연구결과 여러 분석변인에서 맨발과 minimal신발 사이에 차이를 나타냈기 때문에 맨발의 기능을 모방한 신발을 제작하기는 결코 쉽지 않다고 할 수 있다.

참고문헌 (Reference)

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