Effects of lateral/medial wedged insoles on the kinematics and kinetics during normal walking

Mako Fukano, Toru Fukubayashi, Shuji Suzuki

Research output: Contribution to journalArticle

Abstract

Despite their wide clinical application and success, our understanding of the effects of insoles is relatively limited. The purpose of this study was to assess the biomechanical effects of wearing lateral/medial wedged insoles on subtalar and knee joints during normal walking. Motion analysis was conducted with a 3D motion-analysis system and a ground reaction force analysis using force plate when subjects walked with three different insole conditions: 5-degree medial wedge, no wedge, and 5-degree lateral wedge. Significant differences were found in subtalar or ankle joint motion in coronal and sagittal planes compared with the no-wedge condition. No differences were found in knee joint motion in the coronal and axial planes. The lateral-wedge insole reduced the knee varus moment and increased subtalar pronation moment in mid-stance during walking. At footstrike, however, the lateral wedge increased the knee varus moment and reduced the subtalar supination moment. The medial-wedge insole increased the knee varus moment and decreased subtalar pronation moment during the mid-stance phase. However, the medial wedge reduced the knee varus moment and increased subtalar supination moment at footstrike. The results of this study indicate that the influence of the insoles varied during the stance phase. Therefore, it is requested to select the shape of insole based on the injury mechanism, the location of the pain and the injury prevention.

Original languageEnglish
Pages (from-to)509-518
Number of pages10
JournalJapanese Journal of Physical Fitness and Sports Medicine
Volume56
Issue number5
Publication statusPublished - 2007 Oct

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Biomechanical Phenomena
Walking
Knee
Subtalar Joint
Pronation
Supination
Knee Joint
Ankle Joint
Wounds and Injuries
Pain

Keywords

  • Gait analysis
  • Insole
  • Joint moment

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Physiology
  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Effects of lateral/medial wedged insoles on the kinematics and kinetics during normal walking. / Fukano, Mako; Fukubayashi, Toru; Suzuki, Shuji.

In: Japanese Journal of Physical Fitness and Sports Medicine, Vol. 56, No. 5, 10.2007, p. 509-518.

Research output: Contribution to journalArticle

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