After knee surgery, what type of warm-up is most suitable for someone starting light activity?

The most suitable type of warm-up after knee surgery when starting light activity is active warm-up. An active warm-up involves engaging in light movement that increases blood flow to the muscles and prepares the joints for activity. This type of warm-up is beneficial as it increases flexibility, enhances performance, and reduces the risk of injury, especially in a rehabilitative context.

Dynamic warm-ups are effective for general fitness and athletic training, but in the case of post-surgery, a more conservative approach is often advised to ensure the knee joint is not overstressed. Passive warm-ups, which involve external heat application or other non-movement techniques, do not actively engage the muscles or joints, making them less suitable for preparing for activity. Static stretching is typically used after the warm-up or workout rather than before, as it may reduce the muscle's readiness for dynamic movements.

Therefore, incorporating an active warm-up by focusing on gentle mobility exercises can help reintroduce movement to the knee while facilitating recovery.