Pattini A, Schena F, Guidi G C
Research Centre of Sport Performance, Trento, Italy.
Eur J Appl Physiol Occup Physiol. 1990;61(1-2):55-60. doi: 10.1007/BF00236694.
We have studied the variations induced in iron status parameters by four endurance races of different lengths. A comprehensive group of 48 healthy, non-iron deficient, endurance athletes were evaluated before and after four different cross-country and roller ski races: I = Skirollonga, roller ski race for individuals (n = 10), mean duration (MD) = 1 h 48 min; II = Marcialonga, cross-country ski race for individuals (n = 9) MD = 3 h 10 min; III = 12-h of Caldonazzo (Trento-Italy) roller ski relay race (n = 13) MD = 12 h; IV = 24-h of Pinzolo (Trento-Italy) cross-country ski relay race (n = 16) MD = 24 h. In the relays the MD includes both exercise and recovery times. Blood samples were taken before and after every race for the determination of the following haematological parameters: red blood count, haemoglobin, and packed cell volume, serum iron concentration [SI], serum ferritin concentration [FERR] and total iron binding capacity (TIBC). The results showed a constant significant increase of [FERR] after the races (+44.9% in I, +50.5% in II, +51.2% in III and +36.5% in IV, P less than 0.01) while [SI] increased only in the first two races (+28.2% in I and +19.7% in II, P less than 0.01) and showed a remarkable decrease in the longer races (-46.1% in III and -39% in IV, P less than 0.01). The TIBC increased in all the races (except II) to the same extent (range 10%-12%).(ABSTRACT TRUNCATED AT 250 WORDS)
我们研究了不同长度的四项耐力赛对铁状态参数的影响。对48名健康、非缺铁的耐力运动员进行了综合评估，这些运动员在参加四项不同的越野和滑雪比赛前后接受了检测：I = 个人滑雪马拉松赛（n = 10），平均时长（MD）= 1小时48分钟；II = 马尔恰隆加个人越野滑雪赛（n = 9），MD = 3小时10分钟；III = 卡尔多纳佐（意大利特伦托）12小时滑雪接力赛（n = 13），MD = 12小时；IV = 平佐洛（意大利特伦托）24小时越野滑雪接力赛（n = 16），MD = 24小时。在接力赛中，MD包括运动和恢复时间。每场比赛前后都采集血样，以测定以下血液学参数：红细胞计数、血红蛋白、血细胞比容、血清铁浓度[SI]、血清铁蛋白浓度[FERR]和总铁结合力（TIBC）。结果显示，赛后[FERR]持续显著升高（I赛增加44.9%，II赛增加50.5%，III赛增加51.2%，IV赛增加36.5%，P<0.01），而[SI]仅在前两场比赛中升高（I赛增加28.2%，II赛增加19.7%，P<0.01），在较长距离的比赛中显著下降（III赛下降46.1%，IV赛下降39%，P<0.01）。除II赛外，所有比赛中TIBC升高幅度相同（范围为10%-12%）。（摘要截断于250字）
