Figure 2From: Dual-task costs while walking increase in old age for some, but not for other tasks: an experimental study of healthy young and elderly personsMean dual-task costs of all task combinations in our present and previous study. [31]. Each bar represents the average score of younger (black) or older (grey) subjects, and each pair of bars one task combination. Error indicators are 20% of the corresponding standard deviation. An age-related deficit of dual-task performance exists where grey bars are larger than black bars.Back to article page