Table 2. RSS, MSE and residuals (α and β parameters) of mathematical models in pooled data and in UT and TR groups. 2SRM RSS MSE α β 3SRM RSS MSE α β GEM RSS MSE α β Pooled average 350 15.1 -1.34†  .02†  301 14.1 -1.37†  .01 490* 21.9* -1.96†  .02†  sd 198 8.3 .97 .01 176 7.9 1.30 .04 420 18.8 2.47 .03 UT average 333 15.0 -1.11 .02 276 13.6 -0.91 .00 527* 23.8* -2.01†  .03 sd 205 9.0 1.07 .01 173 8.1 1.09 .05 496 21.5 3.20 .04 TR average 374 15.2 -1.63†  .02†  335 14.9 -1.97†  .02†  441 18.0 -1.89†  .02†  sd 192 7.7 .75 .01 180 7.9 1.34 .02 300 12.1 .98 .01 * p< 0.05 significant different from 2SRM and 3SRM †  significant different from zero α is expressed as lmin β is expressed as lminsec.