Quad sets, straight-leg raises, and heel slides are common exercises used after an ACL injury. As symptoms decrease and you are able to bear weight, side-lying leg lifts, glute sets, bridges, mini-squats, heel raises, and prone hamstring curls might be added.
Next Steps
Rest your knee when possible. But try to flex your calf muscles often to help blood circulate in your legs.
Health Tips
Don't applying ice if you feel stiffness in your knee joint. You can do hot water fomentations, knee press exercise (knee Isometric) and quadriceps strengthening exercises.