Carturan D, Boussuges A, Molenat F, Burnet H, Fondarai J, Gardette B
UFR STAPS, Faculté de Luminy, Marseille, France.
Int J Sports Med. 2000 Oct;21(7):459-62. doi: 10.1055/s-2000-7411.
The aim of this study was to assess the effect of the ascent rate on the production of venous circulating bubbles during the decompression following a recreational dive. Twenty-eight recreational divers performed two open water dives at 35 m during 25 minutes. Ascent rate up to the decompression stop was in one case 9 meter per minute (m/min) and in the other case 17 m/min. Circulating venous bubbles were screened using continuous wave Doppler every 10 minutes during one hour after surfacing. Bubbles Doppler signals were graded according to the Spencer scale (from 0 to IV), and the Kisman integrated severity score (KISS) was calculated. Statistical analysis demonstrated a significantly higher bubbles grade and a significantly higher KISS following the rapid decompression compared to the slow one (respectively p = 0.001 and p = 0.0001). In conclusion, these results demonstrate that a 9 m/min ascent rate is safer than a 17 m/min one.
本研究的目的是评估上升速率对休闲潜水减压过程中静脉循环气泡产生的影响。28名休闲潜水者在35米深度进行了两次时长25分钟的开放水域潜水。其中一次潜水至减压停留阶段的上升速率为每分钟9米（m/min），另一次为17 m/min。潜水者出水后一小时内，每隔10分钟使用连续波多普勒对循环静脉气泡进行筛查。气泡的多普勒信号根据斯宾塞量表（从0到IV级）进行分级，并计算基斯曼综合严重程度评分（KISS）。统计分析表明，与慢速减压相比，快速减压后的气泡分级显著更高，KISS也显著更高（p值分别为0.001和0.0001）。总之，这些结果表明，9 m/min的上升速率比17 m/min的上升速率更安全。
