EN
The procedural activity of a disputing party significantly influences the outcome of corrective proceedings. This article explores the principle that a party must exercise its procedural rights promptly to maximize its chances of success. The study analyses the concentration principle in Slovak civil procedure, emphasizing that delayed procedural actions can limit a party’s ability to present new evidence or arguments in appellate proceedings. The findings suggest that while strict procedural rules create a fair and predictable legal environment, they also place a substantial burden on litigants to act diligently within the initial phases of litigation.