The Korean Journal of Physical Education (한국체육학회지)

Korean Alliance for Health: Physical Education: Recreation:and Dance (한국체육학회)
권호 표지

The effect of the stair heights on the gait pattern in stair-ascent activity of elderly persons

노인의 계단 오르기 활동시 보행 패턴에 미치는 계단 높이의 효과

Eun, Seon-Deok;Lee, Ki-Kwang
은선덕;이기광

  • Published : 20040000
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Abstract

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.

Keywords

References

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