Purpose. Iron is the most studied minerals in athletes. Approximately, 25% of female and 10% of male athletes have iron deficiency.The main purpose of this study was to examine the effects of linear and exponential taperfor two weeks on iron level and1500m running time for youth Methods. The sample consisted of (22) runner of 1500m running (15 +/- 1.36 years old; 160 +/- 5.2 cm height; and 51 +/- 6.14 kg weight), members of the army team club. The training experience of all the participants ranged from 5 to 8 years. Subjects were required to read and complete a health questionnaire and informed consent document; there was no history of coronary heart disease, diabetes or recent surgery. Results. The T-test showed no significant changes between pre-and post-training scores for all variables (P. 0.05). However no significant differences were shown between the post-training scores in all variables for the two groups (P. 0.05). Conclusions. Although The T-test showed no significant changes between pre-and post-training scores for all variables (P. 0.05).And however no significant differences were shown between the post-training scores in all variables for the two groups (P. 0.05). The improvement in linear taper is highest theimprovement in exponential taper.
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