妊娠中の運動が分娩に及ぼす影響  [in Japanese] The effect of maternity exercises on delivery  [in Japanese]

妊娠中に行った運動(骨盤底筋体操,ストレッチング,ウォーキング)が分娩にどう影響を及ぼすかを検討した。対象者は,妊娠異常・合併症のない初産婦161人で帝王切開例,吸引分娩例や分娩時薬剤使用例などを除く自然分娩例57人とした。調査期間は2000年1月〜2001年7月である。骨盤底筋体操,ストレッチング,ウォーキングの3運動の実施状況から点数化し,合計得点0点を非運動群とし,運動群は運動の実施強度により,1〜6点の6群に分け,運動との関連を検討した。自然分娩例57人の運動群は47人,非運動群は,10人であった。3〜6点の運動群は34人で59.6%いた。運動群47人中45人はウォーキングを行っていた。運動群間で有意差がみられたのは分娩第1期所要時間であった。3〜6点の運動群の分娩第1期所要時間393±198分は,非運動群640±428分より有意に短縮していた。ウォーキングと骨盤底筋体操,ストレッチの3運動群,または,ウォーキングとどちらかを組み合わせた2運動群は,非運動群に比べ分娩第1期所要時間で有意に短縮していた。運動によって,初産婦は分娩第1期所要時間が短縮されることは,産後の疲労を軽減し,産後の回復にもつながることが示唆された。

We investigated how maternity exercises, such as pelvic floor muscle exercise, stretching, and walking, will affect delivery. Of 161 primigravidas who had no abnormality nor complications during pregnancy (including Caesarean section, vacuum extraction etc), 57 primigravidas who had normal vaginal delivery were used for investigation. The survey was carried out from January 2000 to July 2001. The state of their practices and their strength were divided into "exercise" and "no exercise" group. And the degrees of strengths were classified into seven different levels ranging from 0 to 7. 47/57 primigravidas did exercise, and the rest did not exercise at all. Comparison of scores of exercise and the delivery time were: the time of first stage delivery for, the exercise groups of more than 3 levels 393±198 minutes while those of the non exercise group was 640±428 minutes. As we can see from these results, the difference was significantly clear. Among the exercise group, their favorite practice was "walking". 45/47 primigravidas, did walking and exercised as well. On the other hand, Primigravidas who had exercised only walking showed no significant time differences of first stage delivery compared to those of to no exercise group. Our Investigation clearly showed that maternity exercises will effect and will reduced the time of first stage of delivery for primigravidas. Since the time of the first stage delivery is shorter, it helps to reduce the fatigue and tiredness after childbirth.