A sport assist robot is a lightweight wearable intelligent device developed to support fitness training, competitive sports and outdoor endurance activities. Made of high-strength carbon fiber and breathable flexible fabric, it fits snugly around the waist, hips and knees without hindering jumping, squatting, hiking and other sports movements. Equipped with built-in precision sensors, it monitors real-time joint stress, body posture and exercise intensity, delivering adaptive auxiliary torque to reduce muscle load and delay physical fatigue. When athletes perform high-intensity training or outdoor enthusiasts carry heavy equipment for long-distance trekking, the robot disperses pressure on the lumbar spine and knee joints, effectively lowering the risk of strains, sprains and chronic sports injuries. It automatically records exercise data including stride frequency, training duration and calorie consumption, providing users with objective references to adjust training plans and standardize irregular movements. Integrated with overload protection, emergency stop and adjustable binding structures, the robot adapts to gym training venues, mountain trails and other complex scenarios. Suitable for professional athletes, fitness lovers and outdoor sports participants, the sport assist robot enhances exercise endurance, protects key body joints and enables users to achieve safer, more efficient and scientific sports training.