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. 2021 Mar 22;36(2):1563–1572. doi: 10.1007/s00464-021-08445-7

Table 1.

Statistical analysis comparing the task completion times and total distance between the first and fourth trials

Task 1st trial time, mean (range) (sec) 4th trial time (mean, range) (sec) P value 1st trial total distance (mean, range) (cm) 4th trial total distance (mean, range) (cm) P value
Tonsil 97 (67–180) 36 (26–48)  < 0.001 11.5 (4.0–21.6) 5.5 (2.3–8.9) 0.002
Epiglottis 99 (36–187) 45 (27–62) 0.001 10.6 (6.2–26.1) 7.4 (5.1–11.3) 0.14
Vocal Process 185 (60–596) 65 (49–92) 0.01 29.0 (11.8–85.5) 12.6 (8.3–19.7) 0.04
Interarytenoid 95 (54–221) 58 (43–71) 0.02 13.6 (6.5–40.6) 11.2 (6.2–27.3) 0.33

In all tasks there was a statistically significant improvement in time and distance, except for the distance calculations for the epiglottis and interarytenoid tasks. Although not significant, there was still a numerical decrease in the means for these two tasks and a significantly shorter completion time

This still implies that there was an increase in velocity and efficiency for these tasks