At the end of the 3-month program , SII achieved significantly greater weight losses than SI ( SII : 6.4 % [ 5.1-7 .7 ] ; SI : 4.2 % [ 3.0-5 .6 ] ; P = 0.03 ) ; weight losses in SIG were not significantly different from the other two conditions ( SIG : 5.8 % [ 4.5-7 .1 ] , P 's 0.10 ) .