Related Experiment Video
Updated: Jun 17, 2026

Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus (SCUVA)
Published on: October 31, 2011
Pre-dive vibration effect on bubble formation after a 30-m dive requiring a decompression stop.
Peter Germonpré1, Jean-Michel Pontier, Emmanuel Gempp
1Centre for Hyperbaric Oxygen Therapy, Military Hospital Brussels, Rue Bruyn, 1 B-1120 Brussels, Belgium. peter.germonpre@mil.be
Pre-dive whole-body vibration significantly reduced post-dive bubble formation in divers. This novel preconditioning method may enhance diver safety by minimizing decompression sickness risks.
Area of Science:
- Diving Medicine
- Physiology
Background:
- Decompression sickness (DCS) prevention is a key area in diving research.
- Various preconditioning methods are being explored to mitigate DCS risks.
- Whole-body vibration (WBV) is investigated as a novel pre-dive intervention.
Purpose of the Study:
- To evaluate the efficacy of pre-dive whole-body vibration (WBV) in reducing post-dive bubble formation.
- To explore potential physiological mechanisms underlying WBV's effects on bubble formation.
Main Methods:
- 14 healthy male military divers underwent two identical 30 msw dives.
- One dive was preceded by a 30-minute whole-body vibration session (35-40 Hz).
- Post-dive bubbles were quantified using the Kissman Integrated Severity Score (KISS), and arterial endothelial function was assessed via flow-mediated dilation (FMD).
Main Results:
- A significant reduction in post-dive bubble scores was observed following the vibration dive.
- No significant change in flow-mediated dilation (FMD) was detected after vibration.
Conclusions:
- Pre-dive whole-body vibration effectively reduces post-dive bubble formation.
- The mechanism is likely mechanical (gas nuclei dislodgement or lymphatic clearance) rather than nitric oxide-mediated.
- WBV presents a potential new strategy for enhancing diver safety and mitigating DCS.
More Related Videos
08:19Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
Published on: May 9, 2021
11:14A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level
Published on: January 10, 2017
Related Concept Videos
Excess Pressure Inside a Drop and a Bubble
Buoyancy and Stability for Submerged and Floating Bodies
Alterations in Respiration II
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes include...
Assessment of Ventilation II: Respiratory Depth and Rhythm
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Buoyancy
To get...
Hyperpnea and Hyperventilation