Table 3. Mean values (± SD) for running demands from metabolic power approach: metabolic load, absolute and relative distance in the different metabolic power zones depending on the groups.
Periods Forwards (n = 22) Backs (n = 24) p-value ES (Cohen’s d)
ML absolute(kj) 1507.8 ± 277.7 1488.5 ± 303.7 .578 Unclear.1 ± .3
ML relative(kj.kg-1) 14.1 ± 2.4 15.7 ± 2.6 .080 Moderate- .9 ± .8
MPA(W·kg-1) 5.0 ± 0.7 5.5 ± .7 * .032 Moderate- 1.0 ± .7
Distance covered in each metabolic power zones (m) Equivalentdistance 3040.7 ± 451.1(63.4 ± 9.6) 3353.5 ± 98.2(71.0 ± 10.5) * .078(.036) Moderate- .8 ± .7(- 1.0 ± .7)
0-10W·kg-1 1497.8 ± 313.8(31.3 ± 6.6) 1820.6 ± 341.3*(38.5 ± 7.3) ** .012(.008) Large- 1.3 ± .7(-1.4 ± .7)
10-20W·kg-1 710.1 ± 204.8(14.9 ± 4.1) 568.3 ± 223.5 *(12.0 ± 4.5) * .033(.038) Moderate- .9 ± .6(- .9 ± .7)
20-35W·kg-1 416.5 ± 134.1(8.72 ±2.8) 400.2 ± 145.6(8.43 ± 3.0) .698(.7970) Unclear.2 ± .7(.1 ± .9)
35-55W·kg-1 123.0 ± 51.1(2.58 ± 1.1) 194.6 ± 52.9 **(4.09 ± 1.1) ** .001(.001) Large- 1.3 ± .5(- 1.3 ± .5)
>55W·kg-1 30.6 ± 40.2(.6 ± 0.9) 85.0 ± 44.4 ***(1.8 ± .9) *** .001(.001) Large- 1.6 ± .6(- 1.6 ± .6)
HMPD(>20 W·kg-1) 571.7 ± 184.7(12.0 ± 3.8) 672.9 ± 198.2(14.2 ± 4.1) .105(.078) Moderate- .7 ± .7(- .8 ± .7)
*** p<0.001.
** p<0.01;
* Significant difference between forwards and backs, * p<0.05;
In the table, the top values represent absolute values for one full half period (independently of 1st or 2nd half), and the values in brackets correspond to relative time values. ML: metabolic load; MPA: metabolic power average; ED: equivalent distance; DT: distance travelled; HMPD: high metabolic power distance; ES: effect size (Cohen’s d) presented with 90% confidence interval.