Impact of neoprene wetsuits on lung volumes and work of breathing: implications for military diver safety and performance.
Diving Hyperb MedSep 16, 2026
Clinical ResearchPulmonology
Antoinette Houtkooper, Thijs T Wingelaar, Pieter-Jan Am van Ooij et al.
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In 30 seconds
This randomized controlled trial assessed the effects of neoprene wetsuits on lung function in 31 healthy male divers. Results indicated significant reductions in forced vital capacity (FVC) by 2.8% and functional residual capacity (FRC) by 4.0%, alongside increased work of breathing. These findings highlight potential respiratory constraints during diving activities.
Key findings
- FVC decreased by 2.8% and FRC by 4.0% while wearing a neoprene wetsuit.
- Airway resistance (R aw) increased significantly during wetsuit use.
- Expiratory reserve volume decreased by 10.9% with the wetsuit.
- Diffusion capacity remained unchanged, indicating preserved alveolar-capillary function.
Why it matters
Understanding the impact of neoprene wetsuits on lung function is crucial for ensuring the safety and performance of military divers, particularly during strenuous activities. Respiratory constraints could affect dive outcomes and overall diver health.