Effect of aeromedical training on anxiety levels of ab initio pilots

Purpose Aeromedical training is meant to train aircrew in combating physiological problems that they might face in flight. Given the importance of the training, there are limited studies in the literature investigating the anxiety levels during aeromedical training along with training outcomes. This study aims to assess the untrained participants’ anxiety levels before and after aeromedical training, investigate the differences in anxiety levels across different physiological training devices and determine whether participants’ anxiety levels affect their G tolerances. Design/methodology/approach This study was carried out on 61 healthy male subjects (n = 61) who had applied for initial aeromedical training. Anxiety surveys and visual analog scales were administered before and after the practical aeromedical training. In addition, blood pressure and heart rate measurements were carried out. Findings Participants had significantly higher anxiety levels before human centrifuge training (pre-Glab) than before the altitude chamber training (pre-hypobaric). Participants who experienced G-induced loss of consciousness (G-LOC) had slightly more anxiety reported than the non-G-LOC group. There was a significant decrease between pre-Glab and post-Glab (after the human centrifuge training) and between pre-hypobaric and post-hypobaric (after the altitude chamber training) anxiety levels. The incidence of G-LOC was lower in participants having higher pre-G-Lab blood pressure. However, the difference in anxiety levels between the G-LOC group and the non-G-LOC group was not statistically significant. Research limitations/implications In this study, state anxiety inventory was not performed after human centrifuge training as centrifuge training lasted for around 5 min only, and it is not advisable to repeat state anxiety inventory in such short periods. Blood pressure was not measured after G-Lab training because human centrifuge training is hard training and has an impact on blood pressure. Hence, it would have been difficult to distinguish whether the blood pressure change was due to anxiety or hard physical activity. These limitations, especially for the G-Lab, caused us to evaluate state anxiety only with VAS. It would be worthwhile to repeat similar studies with objective measurements before and after the training. Practical implications This information suggests that instructors who train the applicants on aerospace medicine be ready for the possible consequences of anxiety. Originality/value There are only a few centers in the world that include all the physiological training devices (practical aeromedical training laboratories) together. To the best of authors’ knowledge, there are no studies in the literature investigating the differences in anxiety levels across various physiological training devices. The studies about the effect of anxiety levels on aeromedical training outcomes and anxiety levels before and after the training are scant.

Aerospace Medicine Clinic

Kreykes AJ, Vardiman J. Aerospace medicine clinic: aseptic meningitis. Aerosp Med Hum Perform. 2021; 92(10):845848.

The Legacy of the Wright State University Aerospace Medicine Residency Program

INTRODUCTION: In the mid-1970s, NASA required a robust training program for physicians responsible for the medical needs of the Shuttle astronauts. Personnel at NASA worked closely with academicians and subject matter experts at Wright State University (WSU) to develop and establish a residency program in aerospace medicine. This academic training program was initiated in 1978 and closed in 2018. The objective of this historical piece is to catalog, for posterity, the impact this training program has had on national and international human spaceflight and aviation. METHODS: A thorough review of all available historical documents and oral histories provided by contemporaries were reviewed in detail, including a search of every available residents thesis and all available historical documents and reports at WSU and NASA Headquarters. RESULTS: Over the past 40 yr, WSU has graduated 172 individuals with an M.S. degree focused on aerospace medicine, of which 84 were residents. Nearly 50 of these residents have worked closely with NASA. Many others became integrated into academia, the aviation industry, or international space programs. DISCUSSION: With the growth in interest for government and commercial spaceflight, the field of aerospace medicine is poised to grow. Although it is not well known outside of the Aerospace Medicine community, the legacy of this pioneering, 40-yr civilian-based program is of significant value. If not recorded in an easily locatable and accessible manner, many of the challenges and outcomes from this residency could be lost until future generations have to spend the money, time, and effort to relearn them. Doarn CR, Shimada K, Shepanek M. The legacy of the Wright State University Aerospace Medicine Residency program. Aerosp Med Hum Perform. 2021; 92(9):744750.

Electrocardiographic abnormalities in medically screened German military aircrew

Background A resting electrocardiogram (ECG) is a well-tolerated, non-invasive, and inexpensive test for overt electrical signs of cardiac pathology and is widely used in the screening of aircrew and other high-hazard occupations. Given the low number of pathological results leading to disqualification or restriction however, there is an ongoing debate as to how often screening ECGs should be performed in different age groups. Methods We restrospectively analyzed 8275 resting 12-lead ECGs registered between 2007 and 2020 in the German Air Force Centre of Aerospace Medicine. Findings were categorized according to consensus recommendations published by the NATO Working Group on Occupational Cardiology in Military Aircrew, based on ECG screening criteria published for athletes which were used at the time of registration. Age, sex, height, weight, and body mass index of the probands were also captured. Additionally, 4839 pilot and non-pilot aircrew members were analyzed longitudinally over a maximum period of 13.4 years. Results Out of all the ECGs only 18 revealed findings requiring further investigation, and only one individual was temporarily disqualified because of a ventricular pre-excitation (delta wave) as a sign of an antegrade conducting accessory pathway. The longitudinal analysis of 25,829 ECGs revealed 28 abnormalities requiring further investigation, and only two ECG findings (in probands aged 48.8 and 59.1 years) led to temporary, or permanent disqualification. In a third case, the ECG showed signs of a myocardial infarction, which was already known from the proband’s history. Conclusions Initial ECG screening for asymptomatic aircrew revealed extremely low numbers of individuals requiring further investigation in our cohort. This would appear to justify an initial screening ECG and follow-up ECGs at certain intervals starting at a certain age, but routine ECG screening of applicants in professions with a higher risk tolerance or frequent, e.g. annual, follow-up ECGs in younger aircrew is not supported by our data because of the minimal yield of ECG findings requiring further investigation.