Table 2. Active knee extension angles in each group before and after stretching.

	Active stretching group	Passive stretching group	Control group
Pre-intervention	45.9 ± 8.9°	40.6 ± 16.1°	44.2 ± 5.1°
Post-intervention	52.9 ± 8.9°	56.4 ± 15.8°	45.1 ± 3.7°
Flexibility change	7.0° #	15.8° * #	0.9°

mean ± SD. *significant difference between the active and passive stretching groups. #significant difference from the control group. Flexibility change: difference between pre intervention and post intervention