Abstract
Abstract: The aim of the study is to determine and compare the difference between double poling and diagonal walking in terms of internal load and time in two consecutive days on roller skis. Each day probands participated in a classical style time trial, while one half of probands started with double poling and other with diagonal striding technique.
The next day groups switched-Cross verification. Methods: Field research carried out on the basis a comparison of values: lactate (LA) and heart rate (SF) after load, during calm down and time.
The probands completed about 8 minutes long part of uphill on roller skis. Probands: active cross-country skiers who regularly participate in crosscountry races of the Czech Cup (n = 12, out of that 5 girls, age 16 - 19 years).
Results: They showed a statistically significant difference (p < 0.05) in time. LA values were statistically significantly lower (p < 0.05) in the diagonal striding than in the double poling.