Sit-and-reach | Experimental group (n = 1020) | χ2 | Control group (n = 1112) | χ2 | χ2 | |||
a1) | b2) | a3) | b4) | 1) 3) | 2) 4) | |||
Qualified | 635 | 707 | 11.290* | 695 | 700 | 0.048 | 0.014 | 9.601* |
Unqualified | 385 | 313 | 417 | 412 |