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. Author manuscript; available in PMC: 2009 Dec 5.
Published in final edited form as: J Biomech. 2008 Sep 23;41(16):3303–3308. doi: 10.1016/j.jbiomech.2008.06.039

Figure 1.

Figure 1

Schematic of external lateral stabilizer and step width measurement apparatus. Two lightweight elastic cords attached to a padded belt approximately in alignment with the center of mass when the subject faced straight ahead. Step width was measured by digitizing the medio-lateral positions of heel markers in rear-view video at the instant near mid-stance when the photocell was triggered. Adapted from Donelan et al. (Donelan et al., 2004).