portrait of young fit woman in black sportswear training arms with trx fitness straps in the gym doing push ups train upper body

active activity aerobics arms athletic attractive background bands black body care caucasian chest cross doing endurance equipment exercising female fit fitness functional girl gum gym gymnastics health indoor leg legs motivation muscle one pecs people performing physique pilates portrait pose position power push raised resistance row shoulders sport sportswear sportwear sporty straps stretching strong suspension train trainer training triceps trx upper ups wellness window woman workout young