The video shows a woman performing sit-ups on a yoga mat in a large room. She is wearing a yellow sports bra and black leggings. The room has high ceilings and large windows, allowing natural light to fill the space. The woman is lying on her back with her knees bent and her hands behind her head. She lifts her upper body off the mat, engaging her core muscles, and then lowers it back down. The exercise is repeated several times throughout the video.