This study aimed to examine the relation between the feeling of meaningfulness and also the characteristics of engaged participation (namely, the frequency of participation in voluntary groupings) and the level of anxiety among those who train a group of elite taekwon-do fighters. The research encompassed 58 people, all of whom were taekwon-do ITF (International Taekwon-do Federation) athletes at an elite level. The Questionnaire of Life Orientation (SOC-29) and the Inventory of the State and Features of Anxiety were used. The data were supplemented by the authors’ own questions referring to activities in the field of taekwon-do. The group of taekwon-do fighters chosen was internally divided with regard to the level of the state of anxiety and the feeling of meaningfulness (p < 0.01). It was found that, together with the growth in the values stipulated in the accepted model, the frequency of taekwon-do groupings (β = −0.38), as well as the feeling of meaningfulness (β = −0.31), the value of the level of intensification of the state of anxiety dropped. The data revealed that, together with age, the level of anxiety decreased and the feeling of meaningfulness increased. The difference in the levels of anxiety between women and men was statistically non-significant (p > 0.05). The research findings illustrate that the feeling of meaningfulness and participation in groupings constitute a differentiating factor in terms of the intensification of the average level of anxiety in the elite taekwon-do group. More frequent participation in training goes hand-in-hand with the greater feeling of meaningfulness; perhaps, this is associated with the specific training, which, among other factors, favours adaptation to challenges and actions under pressure.