Table 3.
Effect of the physical education-based stretching intervention program on the proportion of children with normal hamstring extensibility. Data are reported as frequency (% total).
| Experimental group 1 | Experimental group 2 | Control group | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Post-development | Post-development | Post-development | ||||||||
| Low | Normal | Total | Low | Normal | Total | Low | Normal | Total | ||
| Pre-intervention | Low | 7 (15.9) | 8 (18.2) | 15 (34.1) | 4 (7.8) | 11 (21.6) | 15 (29.4) | 14 (31.1) | 4 (8.9) | 18 (40.0) |
| Normal | 1 (2.3) | 28 (63.6) | 29 (65.9) | 2 (3.9) | 34 (66.7) | 36 (70.6) | 6 (13.3) | 21 (46.7) | 27 (60.0) | |
| Total | 8 (18.2) | 36 (81.8) | 44 (100.0) | 6 (11.8) | 45 (88.2) | 51 (100.0) | 20 (44.4) | 25 (55.6) | 45 (100.0) | |
| pa | .039 | .022 | .754 | |||||||
| Post-maintenance | Post-maintenance | Post-maintenance | ||||||||
| Low | Normal | Total | Low | Normal | Total | Low | Normal | Total | ||
| Post -development | Low | 4 (9.1) | 4 (9.1) | 8 (18.2) | 2 (3.9) | 4 (7.8) | 6 (11.8) | 17 (37.8) | 3 (6.7) | 20 (44.4) |
| Normal | 2 (4.5) | 34 (77.3) | 36 (81.8) | 7 (13.7) | 38 (74.5) | 45 (88.2) | 2 (4.4) | 23 (51.1) | 25 (55.6) | |
| Total | 6 (13.6) | 38 (86.4) | 44 (100.0) | 9 (17.6) | 42 (82.4) | 51 (100.0) | 19 (42.2) | 26 (57.8) | 45 (100.0) | |
| pa | .687 | .549 | 1.000 | |||||||
a Significance level from the McNemar’s test.