TY - JOUR
T1 - The maintenance of core temperature in SCUBA divers
T2 - Contributions of anthropometrics, patent foramen ovale, and non-shivering thermogenesis
AU - Bradbury, Karleigh E.
AU - DiMarco, Kaitlyn G.
AU - Futral, Joel E.
AU - Lord, Rachel N.
AU - Edward, Justin A.
AU - Barak, Otto
AU - Glavičić, Igor
AU - Miloš, Ivana
AU - Drvis, Ivan
AU - Dujić, Željko
AU - Lovering, Andrew T.
N1 - Publisher Copyright:
© 2024 Sports Medicine Australia
PY - 2024/7/22
Y1 - 2024/7/22
N2 - Objectives: To determine the influence of a patent foramen ovale and fibroblast growth factor-21 on core temperature (Tc) responses in SCUBA divers. Additionally, we aimed to quantify the individual and combined influences of wetsuit thickness and anthropometric data on Tc changes during the dives. Design: An experimental study comparing the Tc responses between divers with (n = 17) and without a patent foramen ovale (n = 14). Methods: A total of 31 divers participated in the study. Tc was measured pre- and post-dive in 17–18 °C sea water using a telemetric pill. Additionally, blood was drawn pre-dive and ~ 1–2 h post-dive for measurement of fibroblast growth factor-21. Results: There was no influence of a patent foramen ovale on the Tc responses during SCUBA diving in either dive profile (p > 0.05). Additionally, there was no influence of SCUBA diving on fibroblast growth factor-21 concentrations (p > 0.05). The strongest positive and significant associations with the ∆ Tc/min were found when multiplying wetsuit thickness in millimeters by body mass (r2 = 0.3147, p = 0.0010), BMI (r2 = 0.3123, p = 0.0011), and body surface area (r2 = 0.2877, p = 0.0019). There was a significant, negative linear relationship between the body surface area to mass ratio and ∆ Tc/min (r2 = 0.2812, p = 0.0032). Conclusions: These data suggest that Tc regulation during recreational SCUBA diving can be facilitated in part by the appropriate choice of wetsuit thickness for a given set of anthropometric characteristics.
AB - Objectives: To determine the influence of a patent foramen ovale and fibroblast growth factor-21 on core temperature (Tc) responses in SCUBA divers. Additionally, we aimed to quantify the individual and combined influences of wetsuit thickness and anthropometric data on Tc changes during the dives. Design: An experimental study comparing the Tc responses between divers with (n = 17) and without a patent foramen ovale (n = 14). Methods: A total of 31 divers participated in the study. Tc was measured pre- and post-dive in 17–18 °C sea water using a telemetric pill. Additionally, blood was drawn pre-dive and ~ 1–2 h post-dive for measurement of fibroblast growth factor-21. Results: There was no influence of a patent foramen ovale on the Tc responses during SCUBA diving in either dive profile (p > 0.05). Additionally, there was no influence of SCUBA diving on fibroblast growth factor-21 concentrations (p > 0.05). The strongest positive and significant associations with the ∆ Tc/min were found when multiplying wetsuit thickness in millimeters by body mass (r2 = 0.3147, p = 0.0010), BMI (r2 = 0.3123, p = 0.0011), and body surface area (r2 = 0.2877, p = 0.0019). There was a significant, negative linear relationship between the body surface area to mass ratio and ∆ Tc/min (r2 = 0.2812, p = 0.0032). Conclusions: These data suggest that Tc regulation during recreational SCUBA diving can be facilitated in part by the appropriate choice of wetsuit thickness for a given set of anthropometric characteristics.
KW - Body temperature
KW - Cold water immersion
KW - Heat production
KW - Thermoregulation
KW - Wetsuit
UR - http://www.scopus.com/inward/record.url?scp=85202542474&partnerID=8YFLogxK
U2 - 10.1016/j.jsams.2024.07.010
DO - 10.1016/j.jsams.2024.07.010
M3 - Article
AN - SCOPUS:85202542474
SN - 1440-2440
VL - 27
SP - 820
EP - 827
JO - Journal of Science and Medicine in Sport
JF - Journal of Science and Medicine in Sport
IS - 12
ER -