Pelvis-toe distance: 3-dimensional gait characteristics of functional limb shortening in hemiparetic stroke

Koshiro Haruyama, Michiyuki Kawakami, Kohsuke Okada, Kohei Okuyama, Keita Tsuzuki, Meigen Liu

研究成果: Article査読

3 被引用数 (Scopus)


We aimed to investigate whether a newly defined distance in the lower limb can capture the characteristics of hemiplegic gait compared to healthy controls. Three-dimensional gait analyses were performed on 42 patients with chronic stroke and 10 age-matched controls. Pelvis-toe distance (PTD) was calculated as the absolute distance between an anterior superior iliac spine marker and a toe marker during gait normalized by PTD in the bipedal stance. The shortening peak during the swing phase was then quantified as PTDmin. The sagittal clearance angle, the frontal compensatory angle, gait speed, and the observational gait scale were also collected. PTDmin in the stroke group showed less shortening on the affected side and excessive shortening on the non-affected side compared to controls. PTDmin on the affected side correlated negatively with the sagittal clearance peak angle and positively with the frontal compensatory peak angle in the stroke group. PTDmin in stroke patients showed moderate to high correlations with gait speed and observational gait scale. PTDmin adequately reflected gait quality without being affected by apparent improvements due to frontal compensatory patterns. Our results showed that various impairments and compensations were included in the inability to shorten PTD, which can provide new perspectives on gait rehabilitation in stroke patients.

出版ステータスPublished - 2021 8月 2

ASJC Scopus subject areas

  • 分析化学
  • 情報システム
  • 原子分子物理学および光学
  • 生化学
  • 器械工学
  • 電子工学および電気工学


「Pelvis-toe distance: 3-dimensional gait characteristics of functional limb shortening in hemiparetic stroke」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。