The objective of this study was to evaluate the effectiveness of retraining using the Dynavision on driving performance of people with stroke. A randomized controlled trial was conducted among people with stroke (N=26) referred for driving assessment in an outpatient rehabilitation clinic in Australia. Eligible participants were randomized to either receive retraining with the Dynavision apparatus for 18 sessions or to receive no intervention and go onto a waitlist. The primary outcome was an assessment of on-road ability. Secondary outcomes included measures of response speed, visual scanning, and self-efficacy. All assessments were conducted by assessors blinded to group assignment. No significant difference (P=.223) was found between the intervention and control groups in results of on-road assessment in terms of pass or fail; the primary outcome measure; or the results on the secondary outcome measures of response speed, visual scanning, and self-efficacy. In this small trial, training underlying skills (such as executing a continuous wide scan, combining motor and visual processing into a motor response) using the Dynavision apparatus did not improve the outcomes of an on-road assessment for people after strokes. Larger trials are needed to evaluate devices that claim to retrain underlying skills related to driving. (Author/publisher)
Samenvatting