Medical & Biological Engineering & Computing

, Volume 49, Issue 7, pp 801–809

Impaired gait in ankylosing spondylitis

  • Silvia Del Din
  • Elena Carraro
  • Zimi Sawacha
  • Annamaria Guiotto
  • Lara Bonaldo
  • Stefano Masiero
  • Claudio Cobelli
Original Article

DOI: 10.1007/s11517-010-0731-x

Cite this article as:
Del Din, S., Carraro, E., Sawacha, Z. et al. Med Biol Eng Comput (2011) 49: 801. doi:10.1007/s11517-010-0731-x

Abstract

Ankylosing spondylitis (AS) is a chronic, inflammatory rheumatic disease. The spine becomes rigid from the occiput to the sacrum, leading to a stooped position. This study aims at evaluating AS subjects gait alterations. Twenty-four subjects were evaluated: 12 normal and 12 pathologic in stabilized anti-TNF-alpha treatment (mean age 49.42 (10.47), 25.44 (3.19) and mean body mass index 55.75 (3.19), 23.73 (2.7), respectively). Physical examination and gait analysis were performed. A motion capture system synchronized with two force plates was used. Three-dimensional kinematics and kinetics of trunk, pelvis, hip, knee and ankle were determined during gait. A trend towards reduction was found in gait velocity and stride length. Gait analysis results showed statistically significant alterations in the sagittal plane at each joint for AS patients (P < 0.049). Hip and knee joint extension moments showed a statistically significant reduction (P < 0.044). At the ankle joint, a decreased plantarflexion was assessed (P < 0.048) together with the absence of the heel rocker. Gait analysis, through gait alterations identification, allowed planning-specific rehabilitation intervention aimed to prevent patients’ stiffness together with improve balance and avoid muscles’ fatigue.

Keywords

Ankylosing spondylitisKinematicsKineticsThree dimensionalGait analysis

Copyright information

© International Federation for Medical and Biological Engineering 2011

Authors and Affiliations

  • Silvia Del Din
    • 1
  • Elena Carraro
    • 2
  • Zimi Sawacha
    • 1
  • Annamaria Guiotto
    • 1
  • Lara Bonaldo
    • 2
  • Stefano Masiero
    • 2
  • Claudio Cobelli
    • 1
  1. 1.Department of Information EngineeringUniversity of PadovaPaduaItaly
  2. 2.Department of Rehabilitation MedicineUniversity of PadovaPaduaItaly