A young woman performs a warm-up exercise routine indoors, in a gym. She stands on a gray rug. She has her hands near her chest in a fighting stance, legs in a wide stance with her left foot elevated on a blue foam block. She bends her knees in a semi-squat and then straightens up and lets her hands fall to her sides. She smiles at the end of the exercise. She wears a gray t-shirt, black leggings, black shoes, and white socks. To the left of the gray rug is a wood floor with gym equipment, including rowing machines. Other people work out in the background. In the background, a mirror is visible on the wall. Above is a ceiling with fluorescent lights.