Push-ups | Experimental group (n = 1020) | χ2 | Control group (n = 1112) | χ2 | χ2 | |||
a1) | b2) | a3) | b4) | 1) 3) | 2) 4) | |||
Qualified | 602 | 646 | 3.996* | 659 | 668 | 0.151 | 0.013 | 2.393 |
Unqualified | 418 | 374 | 453 | 444 |