Item | I. Without cushion non-intervention | II. F cushion intervention | III. A cushion intervention | IV. Self-made cushion intervention | ANOVA |
Comfortability: VAS-H (point) n = 10 | 3.4 ± 1.3 | 7.4 ± 0.4 | 8.7 ± 0.4 | 9.2 ± 0.6 | I < II*, I < III*, I < IV* |
Pelvic tilt angle (degrees): Difference from 90 degrees n = 10 | 23.1 ± 4.4 | 16.9 ± 2.4 | 13.6 ± 2.7 | 13.4 ± 2.3 | I < II*, I < III*, I < IV* |
Sitting position: Distance from seat tip (cm) n = 10 | 11.8 ± 3.3 | 17.1 ± 1.5 | 18.0 ± 2.8 | 18.14 ± 2.7 | I < II*, I < III*, I < IV* |