The adult woman sits on the workout bench in the prison gym, leaning forward with her gloved hands clasped together. She reaches down with one hand, grips the dumbbell lying on the floor directly in front of her, and lifts it. Remaining seated with her legs apart, she rests her elbow against her inner thigh and performs three slow, controlled concentration curls, fully lowering the dumbbell between repetitions. She then carefully places it back on the floor and pauses to catch her breath. Sweat glistens on her skin, with visible muscle tension and natural breathing throughout. Maintain the same character, prison jumpsuit, gloves, and gym setting. A continuous, low-angle shot from near floor level, with dramatic overhead lighting, deep shadows, and gritty realism. No cuts or sudden camera movements.