Decompression Sickness, SCUBA Diving
Conditions
Keywords
SCUBA diving, exercise,, microparticles, neutrophil activation,, high intensity exercise
Brief summary
The purpose of this study is to determine the impact of high intensity,anaerobic exercise, in the form of cycling, on SCUBA diving. Outcomes are determined by the quantification and subtype of circulating microparticles, complete blood counts, and the quantification of venous gas emboli, measured via transthoracic echocardiography, in the cardiac cavities.
Interventions
OTHERHigh intensity exercise
Subjects performed a repeated Wingate protocol for the exercise condition of the study. This consisted of 4, 30 s maximal efforts on a weight-braked cycle ergometer (Monark 894E, Monark Exercise AB, Sweden) with 4 min active recovery between efforts, preceded by a 5 min warm up. The resistance was set at 7.5% bodyweight for the intervals and 2% for the warm up and active recovery periods.
Sponsors
University of Maryland
University of Split
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
BASIC_SCIENCE
Masking
NONE
Eligibility
Sex/Gender
MALE
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* Experienced divers (\> 250 logged dives) * Male * Physician clearance to dive
Exclusion criteria
* Prior incidence of decompression sickness
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Change from baseline values of number of circulating microparticles per microliter of blood | Prior to exercise, prior to diving, 15 and 120 minutes after surfacing |
Countries
Croatia, United States
Outcome results
None listed