Core Temperature and Thermal Sensation Change after Cold Water SCUBA Diving
| dc.contributor.advisor | Lovering, Andrew | |
| dc.contributor.author | Orman, Tucker | en_US |
| dc.contributor.author | Perez, Makayla | en_US |
| dc.contributor.author | Bradbury, Karleigh | en_US |
| dc.date.accessioned | 2024-06-25T19:08:45Z | |
| dc.date.available | 2024-06-25T19:08:45Z | |
| dc.description | Single page poster | en_US |
| dc.description.abstract | Objective: To measure core temperature (Tc) and thermal sensation (Ts) before and after cold water SCUBA diving in male and female recreational divers wearing wetsuits and drysuits. It has been shown that ∆Tc can be impacted by various anthropometric factors, notably body surface area (BSA)/body mass (BM) but recreational diver research is limited. Methods: 52 subjects (23M, 27F) completed SCUBA dives at varied depths and durations in cold water (10.4 ± 1.9°C) in Oregon (freshwater) and Washington (saltwater). 10 subjects (5M, 5F) wore drysuits with dry gloves and hoods. The remaining 42 (19M, 23F) wore wetsuits (14mm core). Tc was measured before and after each dive using a telemetric pill that was swallowed ~10 hours before the start of the dive. Ts was measured immediately before and after each dive. Results: There was a significant effect of suit type on ΔTc/min (p=0.02) with those in wetsuits having lower ΔTc/min (-0.02 ± 0.02°C/min) than those in drysuits (-0.00 ± 0.01°C/min). In wetsuit and drysuit divers combined, BSA/BM was negatively correlated with ∆Tc/min (P<0.0001, R2=0.3476), and BMI was positively correlated with ∆Tc/min (P<0.0001, R2=0.3285). There was no significant difference (p=0.29) in ΔTs between wetsuit wearers (-2.0±1.0 arbitrary units (a.u)) and drysuit wearers (-1.0±1.0 a.u.). Conclusion: Drysuits were more effective at maintaining Tc throughout cold water dives. Divers with higher BSA/BM ratios and lower BMI had more negative ∆Tc/min. These results suggest cold water divers, especially those with higher BSA/BM and lower BMI, will benefit from using drysuits or thicker wetsuits to maintain Tc during their dives. Funding: This study was funded by the University of Oregon. Temperature supplies were provided by the US Army Research Institute of Environmental Medicine. | en_US |
| dc.identifier.uri | https://hdl.handle.net/1794/29589 | |
| dc.rights | Creative Commons BY-NC-ND 4.0-US | en_US |
| dc.subject | SCUBA | en_US |
| dc.subject | thermoregulation | en_US |
| dc.subject | core temperature | en_US |
| dc.subject | CWI | en_US |
| dc.subject | heat loss | en_US |
| dc.title | Core Temperature and Thermal Sensation Change after Cold Water SCUBA Diving | en_US |