The COVID-19 disease is an emerging pandemic challenge, which has physical and psychological repercussions, deteriorating the quality oflife in those who have been infected and, in turn, in rhose who have had to live in confinement. The objective ofthis study is to know rhe perceptions ofSlackline athletes regarding the effects on training and quality oflife derived from the COVID-19 situation. The research is based on a cross-sectional exploratory-descriptive quantitative method. The instrument used was a selfapplied survey with three dimensions; 229 people from 28 countries correctly answered it, 176 men (15 - 57 years) and 51 women (20 - 43 years), belonging to Europe, America, Asia, and Oceania. The results show that 97.8% say they have lost motivation, 60.2% declare they have poor infrastructure conditions and / or little access to their training places, 65.5% have financia! problems, and 88.2 % have presented health problems, highlighting that 10% ofthose surveyed have been diagnosed with positive COVID-19. lt is concluded that the confinement and pandemic situation has created an unfavorable environment for Slackline athletes due to the complications to carry out their training sessions, lack ofaccess to public spaces, demotivation, loss of physical capacity, and increase in injuries.