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Mathematical modelling of stress in the hip during gait
M Ipavec1, R A Brand, D R Pedersen
1Laboratory of Applied Physics, Faculty of Electrical Engineering, University of Ljubljana, Slovenia.
Journal of Biomechanics
|November 30, 1999
Abstract:
A mathematical model is developed for calculating the contact stress distribution in the hip for a known resultant hip force and characteristic geometrical parameters. Using a relatively simple single nonlinear algebraic equation, the model can be readily applied in clinical practice to estimate the stress distribution in the most frequent body positions of everyday activities. This is demonstrated by analyzing the data on the resultant hip force obtained from laboratory observations where a stance period of gait is considered.