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Diving at diminished atmospheric pressure: air decompression tables for different altitudes
Undersea Biomedical Research
|September 1, 1976
Summary
This study developed air-decompression tables for divers at various altitudes up to 3200 m. These tables were tested on humans, ensuring safer diving practices in diverse environments.
Area of Science:
- Diving physiology
- Altitude medicine
Background:
- Decompression sickness (DCS) is a risk for divers, particularly at higher altitudes.
- Existing decompression tables may not adequately address varying ambient pressures encountered during high-altitude diving.
Purpose of the Study:
- To calculate and validate air-decompression tables for divers operating at altitudes ranging from 0 to 3200 m above sea level.
- To enhance the safety of diving activities conducted in high-altitude environments.
Main Methods:
- Simulated dives were conducted with 50 subjects at a final ambient pressure equivalent to 3000 m above sea level.
- Actual controlled dives were performed by 143 subjects at altitudes between 900 and 1700 m above sea level.
- Air-decompression tables were calculated based on data from these dives.
Main Results:
- Comprehensive air-decompression tables were developed for altitudes spanning 0 to 3200 m.
- Decompression tables for altitudes up to 2000 m were successfully validated through human testing under wet conditions.
Conclusions:
- The developed air-decompression tables provide a crucial safety tool for divers at various altitudes.
- This research contributes to safer diving practices in diverse geographical and environmental conditions.