3.4. Achievement emotion
Achievement emotion was evaluated by participants as an ordinal scale at the end of daily practice (Table 1). It was negatively correlated with post-practice sAA both in the placebo-group (R = −0.440, p = 0.204) and in the theanine-group (R = −0.315, p = 0.376) but not with STAI (Fig. 6).