트레드밀 걷기시 경사도에 따른 무릎관절의 운동학적 ( kinematic ) 변화 비교 = Kinematic comparison of the knee joint motion in treadmill walking on various slope

다국어 초록 (Multilingual Abstract)

The purpose of this study were analysed to kinematic of treadmill walking motion on the knee joint by 4 grade walkway and offered the basic data of the exercise prescription for the general person who is doing treadmill walking exercise. We used Vicon 370 system for the three dimensional analysis. The selected subjects of this study were twelve adult female in the twentieth, they were required to free-walk on the level, the -5%, the 10%, the -5% treadmill and the walking speed was 1.25m/s. As follow are the result of analysis: 1. The knee joint flexion/extension angle and angular velocity pattern were shown similar on each inclination, but knee valgus/varus and rotation angles pattern were shown differences pattern each inclination. 2. Knee flexion/extension angle and angular velocity were shown differences statistically by each inclination. Especilly the other angle except knee flexion/extension angle and angular velocity is highest in the-5% downhill inclination walking. As there analysis and result show, especially it need to be careful in the down-hill walking, cause the movement range of the knee joint was wide on the frontal plane, coronal plane and the same result in the other joint on frontal plane. Also in the up-hill walking rotation angle variation is higher during stance phase. And the study suggests that it will be more desirable to analyze kinetic variables on the sagittal plane, frontal plane, coronal plane. As there analysis and conclusion show, Walking, the aerobic exercises for health maintenance and improvement which needs the time of at least 30 minutes, so it gives load continuously and repeatedly on muscles and ligaments. Especially at the up and down hill walking, we suspect the angle and angular velocity change fast each joint, so during the up and down-hill walking, the old and the weak or the novice should walk slowly or do it in the limit of no body-stress.