**Figure 2.**

*The comparison of HR after 2 minutes of exercise between XC skiers and the first and second match in TT players.*


### **Table 3.**

*HR after 2 minute of exercise in TT players and XC skiers.*

the gender comparison, female participants had on average a higher HR than males, with the exception of XC skiers competing in 50 m race.

When comparing HR after 2 minutes of exercise, the values are similar for all sport groups. An interesting finding for HR after 2 minutes of exercise was observed in male TT players whose HR after 2 minutes of exercise differed noticeably between the first and second analyzed match, the difference consisted of 26 beats per minute. In female TT players, no difference in the HR after 2 minutes of exercise was observed between the matches. Additionally, in TT a significant difference between female and male players in HR after 2 minutes of exercise was observed, whereas XC skiers had HR very similar in both men and women depending on the distance they specialized. The values and differences are shown in **Table 3** and **Figure 2**.

The difference between the resting HR and HR after a 2-minute exercise was the most distinctive in XC skiers competing in 50 m race, for both men (23.6 beats per


**Table 4.**

*The average difference between the resting HR and HR after 2 minutes of exercise.*

### **Figure 3.**

*The average difference between the resting HR and HR after 2 minutes of exercise in male and female TT players and XC skiers.*

minute) and women (25.6 beats per minute). Nevertheless, also in male 1 km XC skiers, HR increased by more than 20 beats per minute (24.3) on average. Greater increase in HR after exercise may indicate a lower aerobic fitness in aforementioned athletes. The difference between the resting HR and HR after 2 minutes of exercise is shown in **Table 4** and **Figure 3**.
