Table 5

Vertical jump, agility, and estimated V̇o2max for junior and senior rugby league forwards and backs

Vertical jump (cm)Agility (s)o2max (ml/kg/min)
ForwardsBacksForwardsBacksForwardsBacks
Values are reported as means (95% CI). Significant team differences (p<0.05) between like superscripts. *Forwards significantly different (p<0.05) from backs. Forwards (n=80; first grade, n=11; second grade, n=16; under 19, n=10; under 16, n=12; under 15, n=11; under 14, n=7; under 13, n=13). Backs (n=79; first grade, n=9; second grade, n=13; under 19, n=12; under 16, n=9; under 15, n=12; under 14, n=10; under 13, n=14).
First grade48.7 (42.1 to 55.3)a50.9 (47.5 to 54.3)17.2 (16.6 to 17.8)a17.4 (16.7 to 18.1)50.0 (47.6 to 52.4)a50.1 (47.4 to 52.8)
Second grade41.0 (37.8 to 44.2)b42.9 (39.3 to 46.5)18.1 (17.6 to 18.6)b17.7 (17.3 to 18.1)45.5 (42.8 to 48.2)b45.0 (41.5 to 48.5)
Under 1937.9 (33.1 to 42.7)ac40.0 (35.1 to 44.9)18.3 (17.5 to 19.1)c17.9 (17.2 to 18.6)43.9 (40.3 to 47.5)c46.1 (42.3 to 49.9)
Under 1638.0 (34.4 to 41.6)ad41.2 (37.7 to 44.7)19.4 (18.5 to 20.3)abd19.1 (18.4 to 19.8)42.9 (40.1 to 45.7)d*49.5 (46.4 to 52.6)
Under 1534.7 (29.2 to 40.2)a37.1 (34.3 to 39.9)19.5 (18.5 to 20.5)abce19.5 (18.9 to 20.1)38.5 (35.5 to 41.5)a41.4 (38.7 to 44.1)
Under 1433.1 (26.8 to 39.4)a38.5 (32.7 to 44.3)21.1 (19.4 to 22.8)abc20.3 (19.4 to 21.2)40.5 (35.5 to 45.5)a40.8 (37.0 to 44.6)
Under 1328.2 (21.7 to 34.7)abcd30.8 (28.2 to 33.4)22.0 (21.5 to 22.5)abcde21.5 (20.9 to 22.1)32.1 (29.6 to 34.6)abcd36.2 (33.8 to 38.6)