Arm-movement test
’ arm-movements, fatigue
We observed significant group differences during the arm-movement test in the total number of contacts on the platforms and maximum movement speed, while the level of movement fatigue did not differ among groups. Post-hoc analysis revealed that the young participants’ arm-movements differed significantly from those of the old (number of contacts: r = 0.63, p < 0.001, max. speed: r = 0.71, p < 0.001) and middle-aged participants (number of contacts: r = 0.40, p = 0.032, max. speed: r = 0.45, p = 0.015; Table 
Performance of repetitive goal-directed arm-movement test of young, middle-aged and older adultsBonferroni corrected post-hoc test reveals 