Results the value of the lumbar spine bone density reached peak when male or female was about 30 years old, and then, went down gradually with the increase of age.

结果腰椎骨密度值不论男性和女性，均在30岁左右达峰值，以后随年龄增长，骨密度值逐渐降低。

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From the changes of bone density in the healing process, it showed that the bone mineral density and bone formation reached the peak at 2 weeks after fracture under the good reduction and fixation.

提示在良好的复位固定条件下，术后2周时骨折区域的骨密度值最高、成骨作用最强。

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This, in turn, limits a person's peak bone mass in adulthood, making osteoporosis a greater threat when bone density starts to decline late in life.

FORBES: DeCode Discovers Osteoporosis Gene