Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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Evaluation of Muscle Activity and Foot Pressure during Gait, and Balance Test in Patients with Genu Valgum

무릎외반의 균형 검사 및 보행 중에 근활성도와 발바닥압의 평가

  • Yoon, Jeong-Uk (Department of Kinesiologic Medical Science, Graduate, Dankook University) ;
  • Yoo, Kyung-Tae (Department of Physical Therapy, Namseoul University) ;
  • Lee, Ho-Seong (Institute of Medical-Sports, Dankook University)
  • 윤정욱 (단국대학교 일반대학원 운동의과학과) ;
  • 유경태 (남서울대학교 물리치료학과) ;
  • 이호성 (단국대학교 부설메디스포츠연구소)
  • Received : 2022.01.17
  • Accepted : 2022.02.16
  • Published : 2022.02.28
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Abstract

PURPOSE: This study sought to evaluate muscle activity and foot pressure during gait, and balance in female college students with genu valgum. METHOD: Participants were assigned based on their Q-angle to genu valgum group greater than 20° (GVG, n = 12), unilateral genu valgum group greater than 20° (UVG, n = 11), and control group (CON, n = 13). All subjects were evaluated for balance (Trace length, C90 area, C90 angle, and the Romberg test), muscle activity (gluteus medius; GM, tensor fasciae latae; TFL, vastus medialis; VM, vastus lateralis; VL, biceps femoris; BF, gastrocnemius; GCM and tibialis anterior; TA) and foot pressure (F/F ratio, R/F ratio, Hallux, 2~5 toe, 1st MT, 2~4 MT, 5th MT, Midfoot, M/heel, and L/heel) during gait. RESULTS: Romberg test showed significantly increased loss of balance in the UVG group compared with the CON. In the forward position, the imbalance was significantly increased in the UVG and GVG groups compared to the CON. Muscle activity of VL, GCM, and TA significantly increased in the GVG group compared with the CON. Static foot pressure, 1st MT significantly increased in the GVG compared to the CON group. The 5th MT significantly decreased in the CON compared with the GVG group. The R/F ratio significantly decreased in the GVG compared to the CON group. In dynamic foot pressure, the 2~5 toe significantly increased in the GVG compared with the UVG group. The left 5th MT significantly decreased in the UVG compared with the CON and GVG groups. CONCLUSION: These results indicate that genu valgum has a negative effect on balance, muscle activity, and foot pressure during gait in female college students.

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