[Development of decompression regimens for excursion dives after a prolonged exposure to 21 ata].

Decompression regimens for excursion dives from a depth of 20, 50, 100 or 200 m were developed and tested in a dry altitude chamber. Each dive continued for about 2 weeks, during which test subjects performed 10 excursion dives to a lower depth. No cases of decompression sickness were observed during 246 man/excursions whereas two cases of decompression sickness occurred in a field study.