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Comparative Analysis of Gait Parameters and Symmetry between Preferred Walking Speed and Walking Speed by using the Froude Number

Comparative Analysis of Gait Parameters and Symmetry between Preferred Walking Speed and Walking Speed by using the Froude Number

( Si Hyun Yoo ) , ( Jong Bin Kim ) , ( Ji Seon Ryu ) , ( Suk Hoon Yoon ) , ( Sang Kyoon Park )

- 발행기관 : 한국운동역학회

- 발행년도 : 2016

- 간행물 : 한국운동역학회지, 26권 2호

- 페이지 : pp.221-228 ( 총 8 페이지 )


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초록(외국어)
Objective: The purpose of this study was to investigate differences in gait parameters and symmetrybetween walking speed by using the Froude number and preferred walking speed.Method: Fifty adults (age: 21.0 ± 1.7 years, body weight: 71.0 ± 9.2 kg, height: 1.75 ± 0.07 m, leg length:0.89 ± 0.05 m) participated in this study. Leg length-applied walking speed was calculated by using theFroude number, defined as Fr = v2/gL, where v is the velocity, g is the gravitational acceleration, and L isthe leg length. Video data were collected by using eight infrared cameras (Oqus 300, Qualysis, Sweden) andthe Qualisys Track Manager software (Qualisys, Sweden), with a 200-Hz sampling frequency during twospeedwalking (preferred walking speed [PS] and leg length-applied walking speed [LS]) on a treadmill(Instrumented Treadmill, Bertec, USA). The step length, stride length, support percentage, cadence, lowerjoint angle, range of motion (ROM), and symmetry index were then calculated by using the Matlab R2009asoftware.Results: Step and stride lengths were greater in LS than in PS (p < 0.05). The right single-support percentagewas greater in LS than in PS (p < 0.05). The hip joint angle at heel contact and toe-off were greater in LSthan in PS (p < 0.05). The hip and knee joint ROM were greater in LS than in PS (p < 0.05).Conclusion: Based on our findings, we suggest that increased walking speed had a significant effect onstep length, stride length, support percentage, and lower joint ROM.

논문정보
  • - 주제 : 예체능분야 > 체육학
  • - 발행기관 : 한국운동역학회
  • - 간행물 : 한국운동역학회지, 26권 2호
  • - 발행년도 : 2016
  • - 페이지 : pp.221-228 ( 총 8 페이지 )
  • - ECN : I410-ECN-0102-2017-690-000299019
  • - UCI : I410-ECN-0102-2017-690-000299019
저널정보
  • - 주제 : 예체능분야 > 체육학
  • - 성격 : 학술지
  • - 간기 : 계간
  • - 국내 등재 : KCI 등재
  • - 해외 등재 : -
  • - ISSN : 1226-2226
  • - 수록범위 : 1992–2018
  • - 수록 논문수 : 1111