Discussion
BLOOD
This trial examined the effects of different levels of compression on differences in muscle strength, thickness, knee function, and stability during the middle period of ACL reconstruction. The main findings of this clinical study are as follows:(1) Blood flow restriction, combined with low-intensity quadriceps training, can effectively improve the strength and girth of the knee extensor muscle group in ACLR patients.(2) Blood flow restriction, combined with low-intensity quadriceps training, was effective in decreasing bilateral differences in the lower extremity on the YBT test. It also had a positive effect on improving knee function. This can accelerate the rehabilitation process of patients and help them enter the next rehabilitation cycle as soon as possible.(3) The level of compression has a noticeable effect on muscle strength, circumference, bilateral knee joint differences, and knee function recovery in patients during mid-term ACLR. If we do not consider the discomfort during compression training, choosing quadriceps training with 80% AOP compression intensity can provide the most benefits.