Identifying factors associated with proprioceptive impairment in individuals after lateral ankle sprain: a cross-sectional study
Abstract
OBJECTIVE
To investigate the validity of a stretch strain sensor-based circumduction reproduction test and identify factors associated with foot-ankle proprioceptive dysfunction in individuals with a history of lateral ankle sprain.
DESIGN
Cross-sectional study.
SETTING
University laboratory.
PARTICIPANTS
Seven copers and 18 patients with chronic ankle instability (CAI).
MAIN OUTCOME MEASURE
The circumduction reproduction test measured absolute error between eyes-open and eyes-closed conditions as an indicator of proprioception during ankle circumduction. Absolute errors in the sensor, shank-rearfoot and rearfoot-midfoot relative angles were measured using a three-dimensional motion analysis system. An independent t-test was used to compare errors between groups. Pearson's correlations were calculated to identify factors contributing to absolute errors, including foot joint variables, anterior displacement, subtalar joint excursion, and weight-bearing lunge test.
RESULTS
The CAI group showed significantly greater sensor error (p = 0.025). The sensor errors significantly correlated with shank-rearfoot (r = 0.698) and rearfoot-midfoot (r = 0.760) errors. The sensor error was significantly associated with subtalar joint excursion (r = 0.667) and weight-bearing lunge test (r = -0.528).
CONCLUSIONS
The circumduction reproduction test using the stretch strain sensor enables accurate evaluation of proprioceptive impairments, with absolute errors associated with subtalar joint…
How strong is the evidence?
Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 18 participants or records.
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