另外這篇「Pedal Errors Among Younger and Older Individuals During Different Pedal Operating Conditions」, Jiajia Yang, Okayama University (2014)的研究顯示,
「These results indicate that the accelerator error rate was two or three times higher than the brake error rate in all of the tested conditions for both the YD and OD groups. Moreover, the ODs committed more accelerator errors than the YDs in the one-foot conditions; however, this difference between groups was not observed in the conditions involving two feet.」