PNF and Movement

Korea Proprioceptive Neuromuscular Facilitation Association (대한고유수용성신경근촉진법학회)
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Comparison of Ankle Angle and Lower extremity Muscle Activities Between Forefoot Strike, Heelfoot strike During the Stair Ascent Walking

계단 오름 보행 시 전족, 후족 착지 방법에 따른 하지의 근활성도와 발목 각도 비교

  • Jun-Su Kim (Department of Physical Therapy, Graduate School, Kyungsung University) ;
  • Hyun-Jun Kim (Department of Physical Therapy, Graduate School, Kyungsung University) ;
  • Sang-Yeol Lee (Department of Physical Therapy, Kyungsung University)
  • 김준수 (경성대학교 대학원 물리치료학과) ;
  • 김현준 (경성대학교 대학원 물리치료학과) ;
  • 이상열 (경성대학교 물리치료과)
  • Received : 2024.02.25
  • Accepted : 2024.03.15
  • Published : 2024.04.30
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Abstract

Purpose: The purpose of this study is to compare lower extremity muscle activities and ankle joint angles between different foot strike patterns (forefoot strike, heelfoot strike) during stair ascent walking. Methods: The subjects of this study were 22 males who walked in each foot strike pattern on ascent stairs at a speed of 85 beats/min. During stair walking with the two types of foot strike patterns, the muscle activities of the rectus femoris, tibialis anterior, medial gastrocnemius, hamstring, and gluteus medius were measured. Additionally, ankle joint angles for inversion, eversion, dorsi flexion, and plantar flexion were recorded. Each participant underwent the experiment three times, with the foot strike pattern randomized. Results were averaged according to the foot strike pattern. Results: Significant differences in ankle angles were observed across all phases according to foot strike pattern. Muscle activities in the lower extremities showed significant differences in all phases except the swing 1 phase. Moreover, differences in foot movement trajectory were noted depending on the foot strike pattern. Conclusion: Walking on ascent stairs elicited differences in lower extremity muscle activities and ankle joint angles based on foot strike pattern. These findings can serve as foundational data for selecting a suitable foot strike pattern tailored to individual patient conditions when training patients in walking on ascent stairs.

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References

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