If it is planned to conduct a checkup only once a week, it is better to do it on Wednesday or Thursday. On Wednesday-Thursday the organism reaches the peak of its capacity and a checkup on these days will show the overall body-state and the total effect of training.

Figure. An example of the dynamics of the athlete’s body-state (checkup once a week)

Less frequent checkups (lees than once a week) will show only general tendencies of the influence of training session on the body. However, in a number of cases it will be quite sufficient.