https://www.selleckchem.com/pr....oducts/jak-inhibitor
001), spent a higher percentage of time at 60% HRmax (p 0.001), and a lower percentage of time between 71 and 80% HRmax (p = 0.004). Finally, external and internal load were strongly correlated for referees at the semi-professional level only (r = 0.75, p 0.001). Overall, the findings demonstrate that refereeing 15-a-side rugby union is more physically demanding at higher competitive levels, particularly in terms of highintensity efforts. The results provide important information for practitioners involved in the p