Table 3. Sex comparison in roller skiing performance.
BOYS (n = 33) GIRLS (n = 16)
Mean (±SD) MIN MAX Mean (±SD) MIN MAX Diff. %
Times(sec) tDP 350-m flat 60.2 (7.3) 46.9 73.3 63.3 (6.1) 55.5 74.4 5.1
tDP 225-m up 63.3 (11.1) 43 92.3 72.5 (12.0)* 56.3 100.0 13.9
tDP 50-m 9.94 (.71) 8.55 11.25 10.73 (.78)** 9.89 12.35 7.9
tV2 50-m 9.11 (.64) 7.79 10.18 10.1 (.78)*** 9.30 11.62 10.9
tLeg Skating 50-m 9.68 (.52) 8.61 10.6 10.88 (.69)*** 10.02 11.94 12.4
Speeds(m/s) vDP 350-m flat 5.90 (.74) 4.77 7.46 5.58 (.53) 4.70 6.31 -5.4
vDP 225-m up 3.65 (.67) 2.44 5.23 3.18 (.51)* 2.25 4.00 -12.8
vDP 50-m 5.05 (.37) 4.44 5.85 4.68 (.33)** 4.05 5.06 -7.3
vV2 50-m 5. 52 (.40) 4.91 6.42 4.98 (.37)*** 4.30 5.38 -9.8
vLeg Skating 50-m 5.18 (.28) 4.72 5.81 4.61 (.29)*** 4.19 4.99 -10.9
Cycle rate(Hz) Cycle Rate DP 350-m flat .98 (.13) 0.73 1.27 .99 (.12) .79 1.21 1.3
Cycle Rate DP 225-m up 1.05 (.13) 0.87 1.40 .95 (.11)* .77 1.12 -9.1
Cycle Rate DP 50-m 1.33 (.11) 1.14 1.6 1.30 (.16) 1.04 1.61 -2.7
Cycle Rate V2 50-m 1.48 (.12) 1.2 1.8 1.42 (.12) 1.23 1.65 -4.4
Cycle Rate Leg Skating 50-m 2.33 (.27) 1.83 2.79 2.16 (.21)* 1.83 2.49 -7.5
Cycle length(m) Cycle Length DP 350-m flat 6.07 (.72) 4.27 7.78 5.69 (.82) 4.79 7.14 -6.3
Cycle Length DP 225-m up 3.49 (.50) 2.68 4.41 3.35 (.43) 2.42 4.33 -3.9
Cycle Length DP 50-m 3.82 (.40) 2.78 4.55 3.65 (.42) 2.94 4.17 -4.3
Cycle Length V2 50-m 3.74 (.38) 2.94 4.55 3.52 (.23)* 3.13 3.85 -6.0
Cycle Length Leg Skating 50-m 2.25 (.27) 1.79 2.63 2.15 (.18) 1.79 2.50 -4.3
SD, standard deviation; t, time; v, speed; DP, Double Poling; V2, V2 skating technique; Diff. %: Difference of girls vs. boys
*p < 0.05
**p < 0.01
***p < 0.001.