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Table 2 Perceived difficulty ratings for cognitive tasks: Mean (SD)

From: Age-related cognitive task effects on gait characteristics: do different working memory components make a difference?

Difficulty level

Cognitive tasks

Random Digit Generation

Brooks’ Spatial Memory

Counting Backward

Young

Old

Young

Old

Young

Old

Low

1.42 (0.67)

2.83 (0.83)

3.17 (0.94)

3.33 (1.15)

1.33 (0.49)

3.25 (0.97)

Medium

2.00 (0.85)

3.75 (0.75)

4.17 (0.72)

4.67 (1.07)

3.17 (0.94)

5.00 (0.95)

High

3.42 (1.24)

4.83 (1.11)

5.75 (0.45)

6.00 (0.95)

4.92 (1.00)

6.42 (0.79)