Introduction: This study investigates the effect of a skating simulator (skatemill) on selected muscles’ activity when skating in a direct line on a skatemill and ice. The work compares selected muscles’ involvement during skating of ice hockey players on a skating simulator and ice using electromyography. Aim of Study: The aim is to find out whether the skating simulator is a suitable means of developing skating technique and whether it is a suitable form of fitness development within the annual training cycle, whether certain muscle groups are not overloaded, or whether the same muscle groups are loaded as when ice skating. Material and Methods: The essence of this research is the use of a case study of a descriptive nature in order to monitor the electrical activity of selected muscles using surface electromyography. Results: The results show that muscle activity on skatemill is not statistically different, from which we can conclude that research has shown similarity in the activity of selected muscles on both ice and skatemill. Conclusions: We can recommend skatemill training as a substitute for skating technique training.