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RISS 인기검색어
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- 저자 : 은선덕(SeonDeokEun) (검색결과 3 건)
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운동역학 : 노인의 트레드밀 보행시 속도에 따른 보행 패턴의 변화 연구
은선덕(SeonDeokEun),이기광(KiKwangLee) 한국체육학회 2004 한국체육학회지 Vol.43 No.5
The purpose of this study was to investigate the effect of speed conditions on the gait pattern in treadmill walking of old age. Data were collected by 3d cinematography and video analyzing system. Six male eldery persons were participated in this experiment All subjects performed a walking activity with slow(3.5㎞/h), moderate(4.0㎞/h), fast(4.5㎞/h) speed conditions on treadmill with 10% grade. The changes of lower extremity angles were analyzed during one stride. One-way ANOVA was used to evaluating the statistical significance. The results obtained from this study were as follows:1. The stance phase was decreased and swing phase was increased as the speed of treadmill was increased in all subjects. But there was no significant difference statistically.2. All subjects did not show a significant difference in speed conditions of treadmill at major events in mean ankle angle. However, max. ankle angle and ROM(range of motion) during stance phase was augmented as the speed was increased(P<.05).3. All subjects did not show a significant difference in speed conditions of treadmill at major event in mean knee angle. However, min. ankle angle during stance phase and ROM during swing phase was augmented as the speed was increased(P<.05).
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운동역학 : 노인의 계단 오르기 활동시 계단 높이가 지지기 동안의 하지 관절 모멘트에 미치는 효과
은선덕(SeonDeokEun),이영석(YoungSukLee) 한국체육학회 2004 한국체육학회지 Vol.43 No.5
The purpose of this study was to investigate the effect of the stair heights on the lower extremity joint moment in stair-ascent activity of elderly persons. Data were collected by 3-D cinematography and force platform. Eight male eldery persons were participated in this experiment. All subjects performed a stair-ascent in four different heights of stairs (10, 14, 18, 22cm) having 5 step staircase. The changes of lower extremity joint moments were analyzed during stance phase. The results on the stair-ascent activity of elderly persons were as follows:First, maximum plantar flexion moment appeared in the 'forward continuance' phase for stair A and B, it occurred in the 'pull-up' phase for stair C and D.Second, it was shown that the maximum inversion moment of the ankle joint and abduction moment of knee joint were the smallest at stair B. In addition to, the maximum abduction moment of knee joint increased as the stair height become higher.Third, the maximum extension moment of knee joint was the greatest at stair B.Fourth, extension moment of hip joint in the 'pull-up' phase decreased significantly for stair C and D. The maximum extension moment at stair A and stair B was extremely great.Fifth, remarkable value of adduction moment occurred at hip joints and maximum adduction moment increased significantly at stair CThe results of this study demonstrated that the ascent activity at general heights of stair for elderly persons tended to be discomfortable. Moreover, the results indicate that effective height of stairs should be between 14 and 18cm in the place for elderly persons.
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운동역학 : 노인의 계단 오르기 활동시 보행 패턴에 미치는 계단 높이의 효과
은선덕(SeonDeokEun),이기광(KiKwangLee) 한국체육학회 2004 한국체육학회지 Vol.43 No.6
The purpose of this study was to investigate the effect of the stair heights on the gait pattern in stair-ascent activity of elderly persons. Data were collected by 3-D cinematography and EMG. Eight male elderly persons were participated in this experiment. All subjects performed a stair-ascent in four different heights of stairs (10, 14, 18, 22cm) having 5 steps each. The changes of lower extremity angles and IEMG were analyzed during stance phase. The results on the stair-ascent activity of elderly persons were as follows: First, it was observed that the maximum extension angle of ankle joint increased significantly at stair C (18cm). In case of `pull-up` phase, however, extension angle decreased evidently at stair C Second, the maximum extension of knee joint occurred around the 65% of stance phase for stair A (10cm) and stair B (14cm), while it occurred in the `forward continuance` phase over 80% of stance phase for stair C and stair D(22cm). Third, as for IEMG, there was no significant change caused by stair height, at the stair C, however, the EMG activity of biceps femoris was very high. The IEMG of Soleus at stair B was greater than that at stair A.
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