Fig. 5.

Initial peak in load force rate: experiment 1, day 1. First peak in load force rate for the large black and small green cubes. The mean peak in load force rate of all subjects is shown for the first 5 and last 5 trials of each block. A significant increase in lifting force was observed for the small green cubes, indicating sensorimotor adaptation over the first day of lifting. Error bars represent ±1 SE. *P value of <0.05, corrected, considered a statistically significant difference between means.