Table 1. Parameters of three types of contractions.
| Parameter | Contraction type | Min | Median | Max |
|---|---|---|---|---|
| Amplitude (%) | Standing contraction | 7.7 | 47.4a | 77.9 |
| Ripples | 12.7 | 55.3b | 79.0 | |
| Slow propulsive contraction | 12.4 | 56.9c | 81.3 | |
| Duration (s) | Standing contraction | 1.7 | 1.8a | 23.4 |
| Ripples | 1.79 | 7.2b | 258.2 | |
| Slow propulsive contraction | 1.72 | 15.3c | 506.6 | |
| Distance (%) | Ripples | 1.2 | 2.2a | 16.6 |
| Slow propulsive contraction | 1.3 | 2.5b | 16.1 | |
| Velocity (mm s-1) | Ripples | 0.04 | 0.22a | 0.67 |
| Slow propulsive contraction | 0.001 | 0.04b | 0.70 |
Data was collected in four segments of the intestines from a total of 35 individuals with n = 11 for lipid, n = 12 for protein, n = 6 for cellulose or plastic bead treatment in the Experiment 1. Letters denote significant difference between contraction types for each parameter (Kruskal-Wallis test followed by dunnTest, p < 0.01). The min, median and max values of each parameter and the statistic tests were calculated and analyzed from 606120 standing contractions, 99010 slow propulsive contractions and 11978 ripples. The medians were presented instead of the means because the data had a right skewed distribution.