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Biomechanical Alternation of the Elderly Depending on the Type of Gait Termination

멈춤 유형에 따른 노인 보행의 생체역학적 변화

  • Yi, Jae-Hoon (Sport & Health Management, School of Sport Health & Welfare, Korea National Sport University) ;
  • Ryu, Ji-Seon (Sport & Health Management, School of Sport Health & Welfare, Korea National Sport University)
  • 이재훈 (한국체육대학교 스포츠건강복지학부 스포츠건강관리) ;
  • 류지선 (한국체육대학교 스포츠건강복지학부 스포츠건강관리)
  • Received : 2011.04.29
  • Accepted : 2011.06.21
  • Published : 2011.06.30

Abstract

The purpose of this study was to verify the difference in biomechanical variation and pattern of the lower limb between planned and unexpected termination, which is related to the prevention of fatal fall in the elderly. Therefore, selected twenty subjects for each group which composed of females(age: $73.5{\pm}4.63$ year, height: $153.2{\pm}6.46$ cm, body mass: $58.98{\pm}5.82$ kg) and women(age: $23.4{\pm}2.5$ year, height: $164.65{\pm}3.9$ cm, body mass: $58.47{\pm}5.53$ kg) in their twenties. As a result, lower limb's extension moment and power were increased significantly in statistics(p<.05). Also, knee joint power showed instant changes from concentric contraction to eccentric contraction and hip joint power from eccentric contraction to concentric contraction. During unexpected termination there were dramatical increase in eccentric contraction and power(p<.05). In both planned and unexpected termination, ankle joint moment were higher in young group, but the moment of the hip joint were higher in the elderly group(p<.05). In contrast to younger group, there were no changes in knee extension moment in elderly group(p<.05). but showed relatively higher hip joint extension moment and power(p<.05).

Keywords

References

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