| Objective: To observe the effect of blood flow restriction combined with low-intensity resistance training on muscle function after lower limb orthopedic surgery. Methods: A total of 40 patients undergoing lower limb orthopedic operation within 4-12 weeks were selected, and randomly divided into treatment group (n=19, 1 dropout) and control group (n=20). Patients in both groups received 4 weeks of rehabilitation training. Patients in control group was given general resistant muscle strength training based on the principle of progressive resistance, and those in treatment group were subjected to blood flow restriction combined with low-intensity resistance muscle training. The isokinetic knee extensor peak torque (PT), quadriceps muscle morphology under ultrasound, limb circumference, static stability limit before and after treatment were used to evaluate the muscle strength, muscle shape, and motor function of patients. Results: Patients in the treatment group and the control group were significantly improved in PT, the thickness of the rectus femoris, the cross-sectional area of the rectus femoris, static stability limit, and limb circumference after treatment as compared with those before treatment (P<0.05). The improvement of PT in the treatment group was significantly better than that in the control group (P<0.001). The thickness of the vastus intermedius in the treatment group was significantly improved as compared with that before treatment (P<0.05). Conclusion: Blood flow restrictive exercise combined with low-intensity resistance training can improve the muscle function of patients after lower limb surgery, and the effect of increasing muscle mass and muscle strotu are better than conventional training. |
