Haldane's theory was revised by D Workman to what nitrogen ratio?

Haldane's theory, originally established by John Scott Haldane in the early 20th century, addressed the way gases behave in the body while diving, particularly focusing on nitrogen absorption and elimination. D. Workman revised this theory, particularly through research and testing that led to the establishment of a more accurate ratio for nitrogen loading and unloading during ascents and descents.

The ratio of 1.58:1 indicates a refined understanding of how divers should manage their ascent rates and stop times to minimize the risk of decompression sickness. This ratio reflects a compromise between safety and allowing for longer bottom times while still considering the physiological constraints of human divers. Workman's findings emphasized a more conservative approach in handling nitrogen levels, which greatly enhanced diver safety protocols and contributed to the development of modern decompression tables and dive computer algorithms.

This revision has been critical in informing safe practices in diving, helping divers to avoid potential nitrogen narcosis and decompression illnesses by better controlling how nitrogen is absorbed and released from the body during dives. Thus, the ratio of 1.58:1 is crucial for divers as it reflects a significant advancement in understanding the dynamics of gas exchange in the body under pressure.