Castillo M C, Lapieza M G, León F, Nuviala R J
Servicio de Bioquímica Clínica, Hospital Clínico Universitario de Zaragoza.
Sangre (Barc). 1996 Jun;41(3):195-200.
To assess in a group of female runners the iron uptake and pharmacological supplementation, plus the variation induced in haematological values and iron deposits.
The total and haeme Fe uptake as well as the blood parameters were studied in a group of 25 female median and long distance runners and in a control group comprised of 82 women with no sport activities. Eleven of the runners had usually been on pharmacologic iron supplementation. All of the subjects completed a diet regimen for 7 days controlled by means of food weighing.
Total Fe ingestion was significantly higher in the runners (13.6 mg/day) than in the control group (11.3 mg/day (p < 0.01), although the minimum established by the Diet Recommendations was reached by neither group. The ingestion of haeme-Fe was higher in non-supplemented runners (1.64 mg/day) with regard to those on iron supplementation (1.39 mg/day) and the women of the control group (1.34 mg/day). Serum ferritin levels were also higher in non-supplemented runners (38.1 ng/mL), with lowest values in the runners receiving iron supplement (29.7 ng/mL).
Serum ferritin levels in female runners appear to be related with the ingestion of haeme-Fe rather than with total iron ingestion. On the other hand, the pharmacologic iron supplementation given here appears inadequate for most of the runners studied.
评估一组女性跑步运动员的铁吸收和药物补充情况，以及血液学指标和铁储存的变化。
对25名女性中长跑运动员和82名无体育活动的女性组成的对照组进行总铁和血红素铁吸收以及血液参数的研究。其中11名跑步运动员通常进行药物补铁。所有受试者均完成了为期7天的饮食方案，并通过食物称重进行控制。
跑步运动员的总铁摄入量（13.6毫克/天）显著高于对照组（11.3毫克/天，p<0.01），尽管两组均未达到饮食建议所规定的最低摄入量。未补充铁剂的跑步运动员的血红素铁摄入量（1.64毫克/天）高于补充铁剂的跑步运动员（1.39毫克/天）和对照组女性（1.34毫克/天）。未补充铁剂的跑步运动员的血清铁蛋白水平也较高（38.1纳克/毫升），补充铁剂的跑步运动员的血清铁蛋白水平最低（29.7纳克/毫升）。
女性跑步运动员的血清铁蛋白水平似乎与血红素铁的摄入有关，而不是与总铁摄入量有关。另一方面，这里给予的药物补铁对大多数研究的跑步运动员来说似乎不足。
