Abstract:

BACKGROUND: Since 1989, world health organization puts forward 3 principles to prevent from osteoporosis syndrome, including calcium supplement, exercise and diet. However, people appreciate calcium supplement and diet more than exercise.

OBJECTIVE: To investigate the relationship between exercise and bone mineral density of lumbar vertebrae on osteoporotic females, and to definite the affection of exercise on bone mineral density of lumbar vertebrae.

METHODS: Among 4 383 females who were in-patient or out-patient at department of rehabilitation in West China Hospital of Sichuan University, 1 455 females were diagnosed osteoporosis by dual-energy X-ray absorption measuring bone mineral density of lumbar vertebrae, and T value scoring; according to the questionnaire of their exercise time, they were 385, 115, 955 sugared with constantly exercise, occasionally exercise and no exercise, respectively, then exercise time was compared with their bone mass density of lumbar vertebrae by SPSS12.0.

RESULTS AND CONCLUSION: Bone mineral density (BMD), average BMD and T score of L₂, L₃ and L₄ in the 3 groups were constantly exercise group > no exercise group > occasionally exercise group, the differences of T score and average BMD were significant (P < 0.05); but the difference of BMD was not signficiant (P > 0.05). The bone mineral content and total bone mineral content of L₂, L₃ and L₄ was constantly exercise group > occasionally exercise group > no exercise group, but there were no significant differences(P > 0.05). Exercise, when reaches a certain amount, can enlarge BMD of lumbar vertebral of osteoporotic females.