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The Effect of running shoes on lower extremity joint torques

Kerrigan, D. Casey and Franz, Jason R. and Keenan, Geoffrey S. and Dicharry, Jay M. and Della Croce, Ugo and Wilder, Robert P. (2009) The Effect of running shoes on lower extremity joint torques. PM&R, Vol. 1 (12), p. 1058-1063. eISSN 1934-1563. Article.

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DOI: 10.1016/j.pmrj.2009.09.011

Abstract

Objective
To determine the effect of modern-day running shoes on lower extremity joint torques during running.
Design
Two-condition experimental comparison.
Setting
A 3-dimensional motion analysis laboratory.
Participants
A total of 68 healthy young adult runners (37 women) who typically run in running shoes.
Methods
All subjects ran barefoot and in the same type of stability running footwear at a controlled running speed. Three-dimensional motion capture data were collected in synchrony with ground reaction force data from an instrumented treadmill for each of the 2 conditions.
Main Outcome Measurements
Peak 3-dimensional external joint torques at the hip, knee, and ankle as calculated through a full inverse dynamic model.
Results
Increased joint torques at the hip, knee, and ankle were observed with running shoes compared with running barefoot. Disproportionately large increases were observed in the hip internal rotation torque and in the knee flexion and knee varus torques. An average 54% increase in the hip internal rotation torque, a 36% increase in knee flexion torque, and a 38% increase in knee varus torque were measured when running in running shoes compared with barefoot.
Conclusions
The findings at the knee suggest relatively greater pressures at anatomical sites that are typically more prone to knee osteoarthritis, the medial and patellofemoral compartments. It is important to note the limitations of these findings and of current 3-dimensional gait analysis in general, that only resultant joint torques were assessed. It is unknown to what extent actual joint contact forces could be affected by compliance that a shoe might provide, a potentially valuable design characteristic that may offset the observed increases in joint torques.

Item Type:Article
ID Code:5699
Status:Published
Refereed:Yes
Uncontrolled Keywords:Running shoes, joint torques, joint stability
Subjects:Area 09 - Ingegneria industriale e dell'informazione > ING-INF/06 Bioingegneria elettronica e informatica
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze biomediche
Publisher:Elsevier
eISSN:1934-1563
Copyright Holders:© 2009 American Academy of Physical Medicine and Rehabilitation
Deposited On:02 Mar 2011 13:37

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