[Pyridoxine allowance of the students in a sports school]

In 297 students of a physical culture institute examined in winter, spring, summer and autumn the passage of 4-pyridoxine acid with urine per hour on an empty stomach amounted to 33.6+/-2.1, 36.0+/-6,2, 38.9+/-2.9 and 32.0+/-2.2 gamma/h, respectively (the seasonal difference being unauthentic). The mean level of the study metabolite excretion with urine throughout the year was 35,0+/-2.3 gamma/h, and in 49.5% of the students its excretion was below 30 gamma which bore evidence to early biochemical signs pointing to deficiency of pyridoxine in the organism, while in 33.5% this figure varied from 30 to 50 gamma and only in 17% in was in line with the normal level established for practically healthy persons not doing any hard physical work. At the same time, the students demonstrated changes in the passage of 4-pyridoxine acid with urine depending upon their specialization in sports, some peculiarities of the sporting activity, additional taking of pyridoxine and other vitamins. It is suggested that the requirement of students-sportsmen in pyridoxine is 1 1/2-2 times as high as fixed in the standards recommended for all groups of the labour intensity.