Naslov
Dynamic diaphragmatic MRI during apnea struggle phase in breath-hold divers

Autori
Batinic, Tonci ; Mihanovic, Frane ; Breskovic, Toni ; Zubin-Maslov, Petra ; Lojpur, Mihajlo ; Mijacika, Tanja ; Dujic, Zeljko

Izvornik
Respiratory Physiology & Neurobiology (1569-9048) 222 (2016); 55-62

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Apnea ; Diaphragm ; Dynamic magnetic resonance imaging ; Human

Sažetak
The purpose of the study was to provide insight in diaphragmatic involuntary breathing movements (IBM) during struggle phase of apnea at total lung capacity (TLC) and functional residual capacity (FRC) using magnetic resonance imaging along with measurements of hemodynamics and arterial oxygenation. The study was performed in eight elite breath-hold divers. There was a similar increase in diaphragmatic cranio-caudal excursions towards the end of TLC and FRC apnea. The greatest diaphragmatic excursion in both apneas and during tidal breathing was in the middle and posterior part of the diaphragm. Diaphragm thickness in elite BHD was within the reference range of normal values suggesting no diaphragmatic hypertrophy in this population. We found that the range of diaphragmatic excursions increases toward the end of apneas. Additionally, our data suggest that the diaphragm participates in IBM occurrence and that various segments of the diaphragm behave nonhomogenously both in tidal breathing and IBMs.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne medicinske znanosti

POVEZANOST RADA