Table II.

Specific metrics, by hours, for exercise 1 (Peg Board level 1)

Parameter	Initial results Mean value ± SD	After 1 h of activity Mean value ± SD	After 2 h of activity Mean value ± SD	After 3 h of activity Mean value ± SD	Final results (after 4 h of activity) Mean value ± SD	Statistical significance
Time to complete [s]	92 ±23	91 ±24	90 ±22	94 ±24	97 ±25	Initial vs. 2 h, p = 0.036 2 h vs. final, p = 0.032 Initial vs. final, p = 0.028
Instrument collision	0.88 ±30	0.89 ±28	0.85 ±32	0.89 ±30	0.95 ±32	Initial vs. 2 h, p = 0.032 2 h vs. final, p = 0.034 Initial vs. final, p = 0.041
Excessive force applied to instruments	0.07 ±0.01	0.06 ±0.01	0.05 ±0.02	0.09 ±0.01	0.1 ±0.01	Initial vs. 2 h, p = 0.034 2 h vs. final, p = 0.032 Initial vs. final, p = 0.047
Instruments out of view	0.32 ±0.05	0.29 ±0.04	0.27 ±0.06	0.34 ±0.05	0.35 ±0.06	Initial vs. 2 h, p = 0.042 2 h vs. final, p = 0.039 Initial vs. final, p = 0.045
Economy of motion [cm]	145 ±38	134 ±42	135 ±46	146 ±44	156 ±47	Initial vs. 2 h, p = 0.038 2 h vs. final, p = 0.039 Initial vs. final, p = 0.042
Drops	0.20 ±0.04	0.21 ±0.06	0.18 ±0.06	0.22 ±0.07	0.37 ±0.05	Initial vs. 2 h, p = 0.029 2 h vs. final, p = 0.034 Initial vs. final, p = 0.038
Master workspace	9 ±2	8 ±1	8 ±2	10 ±3	12 ±3	Initial vs. 2 h, p = 0.042 2 h vs. final, p = 0.041 Initial vs. final, p = 0.038

Bold values for statistically significant values; NS – no statistical significance.