Beginning of training before menarche relates to delay of menarche and low bone mineral density in female long distance runners

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  • 女子長距離走選手における初経発来前のトレーニング開始は初経発来遅延や骨密度低下と関係する
  • ジョシ チョウキョリソウ センシュ ニ オケル ショケイハツライゼン ノ トレーニング カイシ ワ ショケイハツライチエン ヤ コツミツド テイカ ト カンケイ スル

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Abstract

To investigate the relationship between age at beginning of training, onset of menarche, distance for training of running, and lumbar bone mineral density (LBMD), twenty-six female long distance runners aged 18years old and above were examined. Runners suspected primary amenorrhea were excluded in this study.<br>Runners who started training before menarche were delayed their onset of menarche significantly. The age at onset of menarche was selected as determining factor for LBMD, and was significantly negatively correlated to LBMD. It should be important not to delay menarche for preventing low LBMD in female long distance runners.

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