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Cabin Pressure Altitude Effect on Acceleration Atelectasis After Agile Flight Breathing 60% Oxygen.
Tank H, Kennedy G, Pollock R, Hodkinson P, Sheppard-Hickey RA, Woolford J, Green NDC, Stevenson A. Tank H, et al. Among authors: stevenson a. Aerosp Med Hum Perform. 2023 Jan 1;94(1):3-10. doi: 10.3357/AMHP.6123.2023. Aerosp Med Hum Perform. 2023. PMID: 36757237
S(p)o2 was lower Postflight than Preflight in High and Low sorties.DISCUSSION: Breathing 60% oxygen during flight results in a 3.8-4.9% reduction in lung volume associated with a small decrease in blood oxygenation and an estimated pulmonary shunt of up to 5.7%. ... …
S(p)o2 was lower Postflight than Preflight in High and Low sorties.DISCUSSION: Breathing 60% oxygen during flight results in a 3.8-4. …
Aircrew Conditioning Programme Impact on +Gz Tolerance.
Slungaard E, Pollock RD, Stevenson AT, Green NDC, Newham DJ, Harridge SDR. Slungaard E, et al. Aerosp Med Hum Perform. 2019 Sep 1;90(9):764-773. doi: 10.3357/AMHP.5318.2019. Aerosp Med Hum Perform. 2019. PMID: 31426891
During SGT profiles, a lower HR at a given +G(z) (+5.5 G(z)) level following the ACP was observed (Ex: pre 146.0 4.4, post 136.9 5.6 bpm; Con: pre 148.0 3.2, post 153.1 3.3 bpm). BP was maintained and there was a tendency toward an improved SGT. The ACP incre …
During SGT profiles, a lower HR at a given +G(z) (+5.5 G(z)) level following the ACP was observed (Ex: pre 146.0 4.4, post 136 …
Pulmonary Effects of Sustained Periods of High-G Acceleration Relevant to Suborbital Spaceflight.
Pollock RD, Jolley CJ, Abid N, Couper JH, Estrada-Petrocelli L, Hodkinson PD, Leonhardt S, Magor-Elliott S, Menden T, Rafferty G, Richmond G, Robbins PA, Ritchie GAD, Segal MJ, Stevenson AT, Tank HD, Smith TG. Pollock RD, et al. Among authors: stevenson at. Aerosp Med Hum Perform. 2021 Aug 1;92(8):633-641. doi: 10.3357/AMHP.5790.2021. Aerosp Med Hum Perform. 2021. PMID: 34503616
Neural respiratory drive (from diaphragm electromyography) and work of breathing (from transdiaphragmatic pressures) were obtained via nasoesophageal catheters. Arterial blood gases were measured in a subset of subjects. Measurements were conducted while breathing air and …
Neural respiratory drive (from diaphragm electromyography) and work of breathing (from transdiaphragmatic pressures) were obtained via nasoe …
Indirect Measurements of Acceleration Atelectasis and the Role of Inspired Oxygen Concentrations.
Pollock RD, Gates SD, Radcliffe JJ, Stevenson AT. Pollock RD, et al. Aerosp Med Hum Perform. 2021 Oct 1;92(10):780-785. doi: 10.3357/AMHP.5859.2021. Aerosp Med Hum Perform. 2021. PMID: 34641998
EIT(FIVC) was 14.4% lower after the 75% O2 exposure only with a greater symptom reporting with higher F(I)O2 in some individuals. A significantly greater shunt (3>6%) followed the 60 and 75% O2 exposures. ...
EIT(FIVC) was 14.4% lower after the 75% O2 exposure only with a greater symptom reporting with higher F(I)O2 in some individuals. …
Physiological Effects of Centrifuge-Simulated Suborbital Spaceflight.
Smith TG, Pollock RD, Britton JK, Green NDC, Hodkinson PD, Mitchell SJ, Stevenson AT. Smith TG, et al. Aerosp Med Hum Perform. 2022 Dec 1;93(12):830-839. doi: 10.3357/AMHP.6153.2022. Aerosp Med Hum Perform. 2022. PMID: 36757241
Measurements were conducted breathing air and breathing 15% oxygen to simulate a cabin pressure altitude of 8000 ft.RESULTS: Suborbital G profiles generated highly dynamic changes in heart rate, blood pressure, and cardiac output. ...Marked hemodynamic effects and transien …
Measurements were conducted breathing air and breathing 15% oxygen to simulate a cabin pressure altitude of 8000 ft.RESULTS: Suborbit …
Initial Investigation of a Grating Stimulus as a Visual Endpoint for Human Centrifuge Research.
Britton J, Connolly DM, Hawarden DE, Stevenson AT, Harridge SDR, Green NDC, Pollock RD. Britton J, et al. Aerosp Med Hum Perform. 2023 Dec 1;94(12):894-901. doi: 10.3357/AMHP.6246.2023. Aerosp Med Hum Perform. 2023. PMID: 38176039
GL may prove useful as a supplementary endpoint for human centrifuge research as a secondary data point or to reduce fatigue in repeated measurements. The foveal GL stimulus was lost before PLL, contrary to popular models of visual changes under +G(z).Britton J, Con …
GL may prove useful as a supplementary endpoint for human centrifuge research as a secondary data point or to reduce fatigue i …
960 results