young asian woman doing situp or crunches in gym,female exercise muscular her stomach,happy and smiling

abs active activewear activity and asian athlete background body core crunch crunches determination doing effort exercie exercise exercising female fit group guy gym gymfemale health healthy her indoors isolated lifestyle male man mat muscular people person plus positive sit situp situps sixpack size smiling sport sporty stomachhappy strength training warmup white woman workout young