Kinematics of Sit-to-Stand Task for Knee Osteoarthritis Patients

  • Siddharth BhardwajEmail author
  • Abid Ali Khan
  • Mohammad Muzammil
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)


With the increase in life expectancy, the population of older people is on the rise worldwide. The health of the elderly has become a socioeconomic problem, burdening the existing health care system. Knee Osteoarthritis (KOA) is a prevalent degenerative knee joint disorder in elderly people posing significant functional disability, degrading the muscular strength and restricting the range of motion of the knee. Understanding the abnormalities in daily life activities of KOA patients are essential for the management of this degenerative joint disorder. In the present study, the basic daily-life activity sit-to-stand (STS) task has been studied with the objective to understand the kinematics of knee and trunk with spatiotemporal factors in patients diagnosed with KOA. Knee and trunk flexion/extension angles were evaluated for three different feet distances (participant normal sitting feet distance, 20% greater, and 20% lesser than the normal sitting feet distance). Seat height was kept equivalent to the participants’ knee height. Ground and seat reaction forces were also measured to determine the phases of STS task. The kinematics data gathered will help in understanding the KOA patients’ tactics for accomplishing the STS task, thus providing an impetus for designing a powered exoskeleton for patients with KOA.


Osteoarthritis Assistive device Sit to stand 



The study protocol and the participant consent form were approved by the Department Ethical Review Committee, Department of Mechanical Engineering, Aligarh Muslim University. This work was supported by the Council of Scientific and Industrial Research (CSIR), New Delhi under Senior Research Fellow (SRF) scheme. File no. 09/112(0554)2K17.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Siddharth Bhardwaj
    • 1
    Email author
  • Abid Ali Khan
    • 1
  • Mohammad Muzammil
    • 1
  1. 1.Department of Mechanical EngineeringAligarh Muslim UniversityAligarhIndia

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