Objective To observe the effect of sling exercise therapy (SET) on rehabilitation after knee arthroplasty. Methods 46 patients after knee arthroplasty were randomly divided into experimental group (n=23) and control group (n=23). The control group received continuous passive motion (CPM) training, while the experimental group received SET. They were evaluated with range of motion (ROM) of the knee, Hospital for Special Surgery Knee Score (HSS) and posture control ability before, 15 days and 3 months after operation. Results 15 days after operation, the maximal passive knee flexion was 6.0° more in the SET group than in the CMP group (95%CI=0.9°~11.2°; P<0.01), and the maximal active knee flexion was 5.7° more in the SET group than in the CMP group (95%CI=0.4°~9.1°; P<0.01); however, there was no significant difference in the maximal active knee extension, the maximal passive knee extension, HSS and posture control ability between 2 groups (P>0.05). 3 months after operation, there was no significant difference in all the items between 2 groups (P>0.05). Conclusion Compared with CPM, SET might be more effective on increasing knee ROM in the short-term, and could be used as an effective intervention for patients after knee arthroplasty at the early stage.

Objective:To explore the effect of conducting core stability training (CST) on an unstable supporting surface using thoracolumbar fracture patients with an incomplete spinal cord injury.Methods:Forty thoracolumbar fracture patients with incomplete spinal cord injury were randomly divided into an experiment group and a control group, each of twenty. Both groups received 30 minutes of CST five times per week for 8 weeks. The patients in the control group were trained on a stable supporting surface while those in the experiment group used an unstable surface. Evaluations were conducted before and after the 8-week intervention. Gait and static balance data were collected and analyzed using 3D motion analysis software and an EAB-100 active balancer.Results:After the intervention, the average stride length and comfortable walking speed of the experimental group were both significantly better than the control group′s averages. Moreover, the path length, circumferential area, rectangular area and effective value area of the Romberg rate were all significantly better, on average, in the experiment group, as was the average displacement of the deflection center with the eyes closed in static balance.Conclusions:An unstable supporting surface is superior to a stable one for conducting CST after thoracolumbar fracture with incomplete spinal cord injury. The effect may be due to improved nonvisual postural control.

Toxoplasma gondii is an obligate intracellular parasite and causes serious harm to human and ani-mal health.In recent years,a large amount of research has been conducted on the immunological mechanism of toxo-plasmosis,especially in the immune privileged regions of the host,such as brain,eyes,and placenta.This review summaries the immunological mechanism required for resistance to toxoplasmosis,which may provide a valuable ref-erence for the diagnosis,treatment,and prevention studies.