ABSTRACT
Objective@#To explore the relationship among self-objectification, physical exercise and body image disturbance among female college students, in order to provide a theoretical reference for preventing the occurrence of body image disturbance.@*Methods@#Convenient sampling was used to select 2 201 female college students from 4 universities, including Shandong University of Science and Technology, Shandong University of Technology, Ocean University of China and Changchun University, to participate in this study. The students were required to complete Body Image disturbance Questionnaire for Teenagers, Self-Objectification Questionarie and Physical Activity Rating Scale.@*Results@#The detection rate of body image disturbance of female college students was 28.7%, which score in the senior year was significantly lower than that of other grades, the students with non-romantic experiences were significantly lower than those with romantic experiences. The detection rate of body shape disturbance was 41.4%, and the score in the senior year was significantly lower than that of other grades, those with non-romantic experiences were significantly lower than those with romantic experiences. Gender disturbance was found with the rate of 13.1%, and the score in the senior year was significantly lower than that of the first grade and the second grade. The rate of disturbances of sex organs was 4.3% and the rate of facial disturbance was 19.6%. Female college students have self-objectification. Self-objectification had a significant positive predictive effect on body image disturbance(β=0.37,P<0.01); self-objectification and physical exercise interaction accounted for 2.8 percent of the variation in body image disturbance; the difference in regression coefficients was significant(β=-0.20,P<0.01); self-objectification had a significant predictive effect on body image disturbance when the amount of exercise was low(t=11.88, P<0.01); the effect of self-objectification on body image disturbance was not significant when the exercise was high(t=1.87, P>0.05).@*Conclusion@#The process of female college students' self-objectification being affected by body image disturbance is mediated by physical exercise.
ABSTRACT
OBJECTIVES: To evaluate the safety and efficacy of a novel bone cement-injectable cannulated pedicle screw augmented with polymethylmethacrylate in osteoporotic spinal surgery. METHODS: This study included 128 patients with osteoporosis (BMD T-score −3.2±1.9; range, −5.4 to -2.5) who underwent spinal decompression and instrumentation with a polymethylmethacrylate-augmented bone cement-injectable cannulated pedicle screw. Postoperative Visual Analogue Scale scores and the Oswestry Disability Index were compared with preoperative values. Postoperative plain radiographs and computed tomography (CT) scans were performed immediately after surgery; at 1, 3, 6, and 12 months; and annually thereafter. RESULTS: The mean follow-up time was 42.4±13.4 months (range, 23 to 71 months). A total of 418 polymethylmethacrylate-augmented bone cement-injectable cannulated pedicle screws were used. Cement extravasations were detected in 27 bone cement-injectable cannulated pedicle screws (6.46%), mainly in cases of vertebral fracture, without any clinical sequela. The postoperative low back and lower limb Visual Analogue Scale scores were significantly reduced compared with the preoperative scores (<0.01), and similar results were noted for the Oswestry Disability Index score (p<0.01). No significant screw migration was noted at the final follow-up relative to immediately after surgery (p<0.01). All cases achieved successful bone fusion, and no case required revision. No infection or blood clots occurred after surgery. CONCLUSIONS: The polymethylmethacrylate-augmented bone cement-injectable cannulated pedicle screw is safe and effective for use in osteoporotic patients who require spinal instrumentation.