THE COVID-19 PANDEMIC AND ASSOCIATED LOCKDOWN MEASURES HAVE HAD A SIGNIFICANT IMPACT ON ADOLESCENT PHYSICAL ACTIVITY (PA). THIS STUDY AIMED TO EVALUATE THE LEVEL OF PA OF ADOLESCENTS IN PRIVATE SECONDARY EDUCATIONAL ESTABLISHMENTS IN THE CITY OF LIMA AFTER THE PERIOD OF CONFINEMENT DUE TO COVID-19. A CROSS-SECTIONAL DESCRIPTIVE STUDY WAS CARRIED OUT WITH A SAMPLE OF 380 STUDENTS (202 MEN AND 178 WOMEN) AGED 14 TO 16, USING THE "PHYSICAL ACTIVITY QUESTIONNAIRE FOR ADOLESCENTS" (PAQ-A) TO MEASURE PA. THE RESULTS INDICATED THAT POST-CONFINEMENT PA LEVELS ARE BELOW THE WHO RECOMMENDATIONS, WITH THE OVERALL AVERAGE OF THE PAQ-A SCORES FALLING WITHIN THE RANGES OF PHYSICAL INACTIVITY. SOCIODEMOGRAPHIC ANALYZES REVEALED SIGNIFICANT DIFFERENCES BY GENDER AND AGE, WITH MALE ADOLESCENTS REPORTING HIGHER LEVELS OF PA THAN FEMALE ADOLESCENTS, AND 14-YEAR-OLDS BEING MORE ACTIVE THAN 16-YEAR-OLDS. FUR...