Physical fitness is associated with simulator driving performance in young drivers

This study examined the association between physical activity level, cardiorespiratory fitness, musculoskeletal strength, and driving outcomes in a driving simulator, while accounting for cognitive processing speed. Sixty-nine young drivers completed simulated driving scenarios of varying complexity. They also completed self-report measures of physical activity, and their processing speed, musculoskeletal strength, and cardiorespiratory fitness were assessed using standardized measures. Participants who were more physically active reacted significantly faster to a braking task while driving on a straight road. The group of participants that was deemed more physically fit based on an indicator of cardiorespiratory fitness were found to crash less often. Low fit participants also presented significantly higher odds of having a crash. Participants with lower grip strength also showed a lower odd of crashing This study supports the notion that physical fitness, particularly cardiorespiratory fitness and strength, is crucial for swift behavioral responses under pressure while driving.