However , the WBV recovery protocol substantially increased the tissue-oxygenation index compared with the active ( 11.2 % 2.4 % [ mean 95 % CI ] , effect size [ ES ] = 3.1 , and -7.3 % 4.1 % , ES = -2.1 for the 10 min postexercise and postrecovery , respectively ) and passive recovery conditions ( 4.1 % 2.2 % , ES = 1.3 , 10 min postexercise only ) .