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对６３例坚持健身跑的老年人红细胞中超氧化物歧化酶活力及血清中Ｔ－ＳＯＤ、ＣｕＺｎ－ＳＯＤ、Ｍｎ－ＳＯＤ的活力和血清ＳＯＤ含量进行测定，与同龄正常对照组比较，并探讨其活力和含量的相互关系。结果表明，二组间ＳＯＤ活力均有显著差异（Ｐ＜０．０１）；而老年健身跑组的ＳＯＤ含量（２４３．６７ｎｇ／ｍｌ）略低于老年对照组（２７９．５５ｎｇ／ｍｌ），说明在老年人特别是不运动的老年人存在着不少无活性的ＳＯＤ，因此单以ＳＯＤ活力或含量指标都不能反映人体血液中ＳＯＤ的真实水平，真正有意义的是它们的互相结合，即单位体积血液中每ｎｇＳＯＤ的活力单位数──ＳＯＤ的效率。
The activities of superoxide dismutase (SOD), the activities of T-SOD, CuZn-SOD, Mn-SOD and serum SOD in red blood cells of 63 elderly people who insisted on running were measured and compared with the normal control group And the content of the relationship. The results showed that there was a significant difference in SOD activity between the two groups (P <0.01), while the SOD content in the elderly fitness group (243.67ng / ml) was slightly lower than that in the elderly control group (279.55ng / ml) In the elderly, especially those without exercise, there are many inactive SOD, SOD activity alone or content indicators can not reflect the true level of human blood SOD, the real significance of their combination, that unit The number of units of energy per ngSOD in a volume of blood ─ the efficiency of SOD.