Korean Journal of Applied Biomechanics (한국운동역학회지)

Korean Society of Applied Biomechanics (한국운동역학회)
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Biomechanical Analysis of Lower Limbs on Speed of Nordic Walking

노르딕워킹의 속도에 따른 하지 관절의 운동역학적인 분석

  • Yang, Dae-Jung (Department of Physical Therapy, College of Health, Daebul University) ;
  • Lee, Yong-Seon (Department of Physical Therapy, Graduate School of Daebul University) ;
  • Park, Seung-Kyu (Department of Physical Therapy, College of Health, Daebul University) ;
  • Kang, Jeong-Il (Department of Physical Therapy, College of Health, Daebul University) ;
  • Lee, Joon-Hee (Department of Physical Therapy, College of Health, Daebul University) ;
  • Kang, Yang-Hoon (Department of Physical Therapy, College of Medicine, Seonam University)
  • 양대중 (대불대학교 보건대학 물리치료학과) ;
  • 이용선 (대불대학교 대학원 물리치료학과) ;
  • 박승규 (대불대학교 보건대학 물리치료학과) ;
  • 강정일 (대불대학교 보건대학 물리치료학과) ;
  • 이준희 (대불대학교 보건대학 물리치료학과) ;
  • 강양훈 (서남대학교 보건과학대학 물리치료학과)
  • Received : 2011.06.13
  • Accepted : 2011.09.27
  • Published : 2011.09.30
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Abstract

In this study, 26 normal subjects were studied to compare the biomechanical Analysis of Lower Limbs on Speed of Nordic Walking. The biomechanical variables were determined by performing three-dimensional gait analysis, and the measurements items were spatial and temporal parameters; vertical ground reaction force; and moments of the hip, knee, and ankle joints. The purpose of this study based on the speed of Nordic Walking to the vertical ground reaction force and joint moments of each were analyzed. Nordic Walking with poles while being whether this weight is reduced to load, not the improvement of muscle activity by identify Nordic walking is to allow efficient. The results of the analysis were follows. The spatial parameters of step length, stride length significantly increased with increase in velocity(p<0.001). The temporal parameters of step time, stride time, the duration of double support use, and the duration of single support use also significantly decreased with increase in velocity(p<0.001), but cadence significantly increased(p<0.01). Analysis of the changes in ground reaction force revealed that vertical ground reaction force significantly increased at the initial contact and the terminal stance and decreased at the mid stance with increase in velocity(p<0.001). Moments of the hip and knee joints significantly in creased with increase in velocity whereas that of the ankle joint did not. Gait analysis revealed that weight-bearing decreased and moments of the hip and knee joints increased with increase in velocity(p<0.01). The results of this study may help people perform Nordic walking efficiently and Nordic walking can be used in the gait training of people with an abnormal gait.

Keywords

References

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