The aim of this study was to determine the VO2max capacity and fat content of seventh grade students after online school for 2.5 years. The method used in this research is a survey method with a descriptive type of research and a quantitative approach. The instrument used is a beep test to determine the level of VO2max and a fat content test using a skinfold caliper. The subjects in this study were all students of class VII SMP Lab UM, totaling 195 students. The results of this study are the average VO2max level in male students is 28.95 which is included in the very poor category, while female students are 24.22 in the very poor category. The fat content of male students was 19.39 in the low category (high fat content) and 21.91 for female students in the moderate category (normal fat content). The conclusion is that VO2max in SMP Lab UM students is very bad where this is equivalent to high fat levels in male students who are tall and worrying because usually men are more inclined and do more moderate-high physical activity before the covid-19 pandemic. Compared to female students who spend more time studying and reading.