Exercise and Repetitive Diving

Completed · Not applicable

Conditions studied: Decompression Sickness, Endothelial Dysfunction, Neutrophil Activation, Venous Gas Emboli

In brief

SCUBA diving frequently involves repetitive exposures over multiple days. The goal of this study was to see how exercise impacts microparticles (MPs), endothelial function, and venous gas emboli (VGE) over a series of dives. 16 divers in 2 groups each completed 6 dives. One group completed 3 control dives followed by 5 days rest then 3 dives preceded by exercise. The other group completed the opposite protocol. Flow-mediated dilation (FMD) data and blood for MP analysis was collected before and after each dive. VGE were monitored via transthoracic echocardiography 30, 60, and 90 min after surfacing. Exercise before diving consisted of 60 min running outdoors including 8x4 min intervals at 90% VO2max effort.

Key facts

Study ID

NCT02118207

Run by

University of Split

People needed

16

Starts

2013-10-01

Expected to finish

2014-01-01

Last updated by the study team

2014-04-21

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Certified SCUBA diver
• Certified to dive by experienced Medical evaluator
• Must be able to run continuously for 45 min

You may not qualify if…

• Prior diagnosis of decompression sickness

Where it is running

• University of Maryland — Baltimore, Maryland, United States
• University of Split School of Medicine — Split, Croatia

Full record on ClinicalTrials.gov

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