Moisan J, Meyer F, Gingras S
Département de Médecine sociale et préventive, Université Laval, Ste-Foy, Québec, Canada.
Med Sci Sports Exerc. 1991 Oct;23(10):1170-5.
Early menarche has been associated with higher risk of breast cancer. A prospective study of 2487 girls, has been conducted in Quebec City, Canada, to evaluate the relationship of exercise to menarche, taking personal and family characteristics into account. Weight, height, body mass index, and abdominal and supra-iliac skinfolds were inversely associated with age of menstruation. Mother's age at menarche was positively associated with age of menstruation. Age, mother's age at menarche, and weight-adjusted incidence density ratios (IDR) showed no association between energy expenditure and onset of menstruation. Girls who participated in dance, gymnastic figure skating, synchronized swimming, or diving competitions had a lower risk of reaching menarche at an early age (IDR = 0.71 (0.51-0.97)).
初潮过早与患乳腺癌的风险较高有关。在加拿大魁北克市对2487名女孩进行了一项前瞻性研究，以评估运动与初潮的关系，并考虑个人和家庭特征。体重、身高、体重指数以及腹部和髂上皮肤褶皱与月经年龄呈负相关。母亲初潮时的年龄与月经年龄呈正相关。年龄、母亲初潮时的年龄以及体重调整后的发病密度比（IDR）显示能量消耗与月经初潮之间没有关联。参加舞蹈、体操花样滑冰、花样游泳或跳水比赛的女孩初潮过早的风险较低（IDR = 0.71（0.51 - 0.97））。
