EFFECT OF RECREATIONAL EXERCISE ON MIDTRIMESTER PLACENTAL GROWTH

被引:60
作者
CLAPP, JF
RIZK, KH
机构
[1] METROHLTH MED CTR, DEPT REPROD BIOL, CLEVELAND, OH 44109 USA
[2] CASE WESTERN RESERVE UNIV, SCH MED, CLEVELAND, OH 44106 USA
关键词
PREGNANCY; EXERCISE; PLACENTA; GROWTH;
D O I
10.1016/0002-9378(92)91730-X
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
OBJECTIVE: The purpose of our study was to test the hypothesis that regular recreational exercise increases the rate of growth in placental volume in the midtrimester of human pregnancy. STUDY DESIGN: Serial measurements of placental volume were obtained between the fourteenth and twenty-sixth gestational week in 1 8 subjects who exercised regularly throughout the midtrimester and in 16 matched controls with an ultrasonographic system equipped with a fixed-base, articulated-arm, 3.5 MHz B-mode transducer. RESULTS: Placental volumes were significantly greater in the women who maintained a regular exercise regimen throughout the midtrimester. At 16 weeks (mean +/- SD) volumes were 141 +/- 34 cm3 and 106 +/- 18 cm3 in the two groups. This difference increased at 20 weeks (265 +/- 67 cm3 vs 186 +/- 46 cm3) and again at 24 (410 +/- 87 cm3 vs 270 +/- 58 cm3) weeks' gestation because of a significant between-group difference in the rate of growth in placental volume over this time interval (34 +/- 8 cm3/wk vs 21 +/- cm3/wk). CONCLUSION: We conclude that the hypothesis is correct and speculate that the change in growth rate represents an adaptive response to the intermittent stimulus of a reduction in regional blood flow.
引用
收藏
页码:1518 / 1521
页数:4
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