What is the consequence of not following a proper ascent rate?

Maintaining a proper ascent rate is crucial in diving because it directly impacts the risk of decompression sickness (DCS). Decompression sickness occurs when a diver ascends too quickly, which does not allow nitrogen, that has accumulated in the body during the dive, to be expelled gradually. When a diver ascends too rapidly, nitrogen bubbles can form in the bloodstream and tissues, leading to various symptoms ranging from joint pain to more severe, potentially life-threatening conditions.

Following a safe ascent rate promotes safety by allowing the body time to properly eliminate nitrogen and other gases, thereby minimizing the likelihood of forming dangerous gas bubbles in the body. This principle is fundamental in diving protocols and is outlined in decompression tables and dive computer guidelines. Proper ascent not only protects the diver’s health but also enhances the overall safety of dive practices.