Abstract: ［Abstract］  Objective〖HTSS〗〓To explore the effects of core strength training（CST） on related factors of fall risk and bone mineral density（BMD）of patients with postmenopausal osteoporosis.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓Fortyfour patients with postmenopausal osteoporosis were enrolled in the study. According to the random number table, the patients were divided into CST group（n=22） and control group（n=22）. Patients in both groups received conventional drug treatment. Meanwhile, patients in the CST group were given core strength training 60 minutes three times a week for 24 weeks. All patients were assessed with the balance function assessment system, the timed up and go test, the 30second chair stand test, the Tinetti gait score, the degree of lower back pain score and the BMD examination before and after the treatment.
〖HTH〗〖WTHZ〗Results〖HTSS〗〓After the treatment, the center of press Xaxis、 center of press Yaxis、 coverage of 90% ellipse area and length in function of surface(LFS) index results at eyes opened and closed mode in two groups were lower than those before the treatment, and the center of press Xaxis、 center of press Yaxis、coverage of 90% ellipse area and LFS index results at eyes opened and closed mode in the CST group were lower than those in the control group（P＜005）. After the treatment, the timed up and go test(TUGT) and Visual Analogue Scale(VAS) results in two groups were lower than those before the treatment, the 30 sCST and Tinetti gait score results in two groups were higher than those before the treatment, and the TUGT and VAS results in the CST group were lower than those in the control group, the 30 sCST and Tinetti gait score results in the CST group were higher than those in the control group（P＜005）. After the treatment, the lumbar vertebra（L2-4）and femoral neck BMD results in two groups were higher than those before the treatment, and the lumbar vertebra（L2-4）and femoral neck BMD results in the CST group were higher than those in the control group（P＜005）. 
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓 CST can effectively improve the related factors of fall risk including the balance function,the strength of lower limbs, the gait function,the pain degree and enhance the BMD in patients with postmenopausal osteoporosis, which provide a new thought for the prevention and treatment of postmenopausal osteoporosis.

Key words: osteoporosis, postmenopausal, core strength training, bone density