Role of heel lifting in standing balance recovery

A simulation study

Kuangyou B. Cheng, Hiroko Tanabe, Wen Chien Chen, Hung-Ta Chiu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Although lifting the heels has frequently been observed during balance recovery, the function of this movement has generally been overlooked. The present study aimed to investigate the functional role of heel lifting during regaining balance from a perturbed state. Computer simulation was employed to objectively examine the effect of allowing/constraining heel lifting on balance performance. The human model consisted of 3 rigid body segments connected by frictionless joints. Movements were driven by joint torques depending on current joint angle, angular velocity, and activation level. Starting from forward-inclined and static straight-body postures, the optimization goal was to recover balance effectively (so that ground projection of the mass center returned to the inside of the base of support) and efficiently by adjusting ankle and hip joint activation levels. Allowing/constraining heel lifting resulted in virtually identical movements when balance was mildly perturbed at the smallest lean angle (8°). At larger lean angles (8.5° and 9°), heel lifting assisted balance recovery more evidently with larger joint movements. Partial and altered timings of ankle/hip torque activation due to constraining heel lifting reduced linear and angular momentum generation for avoiding forward falling, and resulted in hindered balancing performance.

Original languageEnglish
Pages (from-to)69-77
Number of pages9
JournalJournal of Biomechanics
Volume67
DOIs
Publication statusPublished - 2018 Jan 23

Fingerprint

Heel
Chemical activation
Recovery
Torque
Joints
Angular momentum
Angular velocity
Accidental Falls
Ankle Joint
Recovery of Function
Hip Joint
Computer simulation
Posture
Ankle
Computer Simulation
Hip

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

Cite this

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Role of heel lifting in standing balance recovery : A simulation study. / Cheng, Kuangyou B.; Tanabe, Hiroko; Chen, Wen Chien; Chiu, Hung-Ta.

In: Journal of Biomechanics, Vol. 67, 23.01.2018, p. 69-77.

Research output: Contribution to journalArticle

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