subjects with or without persistent complaints after a lateral ankle sprain.
M. Gait Posture. 2016 Jul;48:24-9. doi: 10.1016/j.gaitpost.2016.04.022. Epub
2016 Apr 29.
complaints 6 to 12 months after an ankle sprain walk differently than those
without persistent complaints.
acutely that linger long after an initial injury. We can identify people with
chronic ankle instability – one aspect of persistent symptoms – by measuring
center of pressure (COP) during certain tasks. Unfortunately, it is unclear if
this is true for a larger group of patients with persistent symptoms after a
lateral ankle sprain. The authors of this study explored if COP measures during
single-leg stance and gait differ between people with and without persistent
complaints 6 to 12 months after a lateral ankle sprain. The authors defined
persistent complaints based on how participants rated their recovery with a
7-point scale (no complaints = fully recovered or strongly improved). Fourteen out of 44 participants had
persistent complaints. After being put into groups the participants also
completed a Visual Analog Scale for pain, and the Ankle Function Score to measure their pain and function. Participants
performed barefoot walking, and single leg stance with and without vision on
the RSscan footscan.
Patients with persistent complaints exhibited a more laterally located COP
during the early mid stance and push-off phase of their gait compared with
people without persistent symptoms.
instability at 12 months after an ankle sprain these authors looked at patients
with persistent complaints at 6 to 12 month post lateral ankle sprain. Hence,
the authors examined people recovering from a lateral ankle sprain in a
different manner from the norm for chronic ankle instability. Despite these
differences, the authors’ findings agree with those found among people with
chronic ankle instability. Participants with persistent complaints exhibited a
laterally located COP. The authors hypothesized this may be the result of a
more cautious roll off during gait. Hence, some individuals adopt coping
mechanisms to decrease the load and subsequent pain at the ankle. This is
important because while these alterations are done as a protective measure these
loading changes can also put someone at risk of re-injury. Since these changes
in gait may start as early as 6 months post injury we need to recognize them
early. Furthermore, these findings should remind clinicians to focus on gait
retraining to prevent the development of poor foot biomechanics.
address the laterally located COP that can develop following a lateral ankle
sprain? How does this article change the way you view treating a lateral ankle
sprain, knowing that persistent complaints can be seen at least six months post
Kros, W., Keijsers, N., van Ochten, J., Bierma-Zeinstra, S., & van Middelkoop, M. (2016). Center of pressure during stance and gait in subjects with or without persistent complaints after a lateral ankle sprain Gait & Posture, 48, 24-29 DOI: 10.1016/j.gaitpost.2016.04.022