This article describes the influence of a ten day stay and training in a high altitude area (1 850m ASL) on selected blood count parameters and morning rest heart rate. Three tests were performed on a group of young cross country skiers (n=10, age: 18.7+-4.8): two days before, two days after and ten days after the altitude training camp.
Two day after the return, significant (p0.05). The study in a group of young sportsmen has shown positive effects of a ten-day training camp in high altitude on blood count parameters and morning rest heart rate monitored in lowland two and ten days after the return from high altitude.