The Effects of Training on Anxiety and Task Performance in Simulated Suborbital Spaceflight
| Autor: | Frederick Bonato, Kimberly A. Seaton, James M. Vanderploeg, Charles H. Mathers, Rebecca S. Blue, Andrea Bubka, Tarah L. Castleberry, Johnené L. Vardiman |
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| Rok vydání: | 2017 |
| Předmět: |
Adult
Male 0301 basic medicine medicine.medical_specialty Demographics Motion Sickness Centrifugation Anxiety Audiology Spaceflight Task (project management) law.invention Cohort Studies Young Adult 03 medical and health sciences 0302 clinical medicine Aeronautics law Task Performance and Analysis medicine Humans Prospective Studies Aged Opting out business.industry Hemodynamics Training (meteorology) General Medicine Middle Aged Space Flight medicine.disease 030104 developmental biology Motion sickness Aerospace Medicine Female Aviation medicine medicine.symptom business Space Simulation 030217 neurology & neurosurgery |
| Zdroj: | Aerospace Medicine and Human Performance. 88:641-650 |
| ISSN: | 2375-6314 |
| DOI: | 10.3357/amhp.4807.2017 |
| Popis: | Introduction In commercial spaceflight, anxiety could become mission-impacting, causing negative experiences or endangering the flight itself. We studied layperson response to four varied-length training programs (ranging from 1 h-2 d of preparation) prior to centrifuge simulation of launch and re-entry acceleration profiles expected during suborbital spaceflight. We examined subject task execution, evaluating performance in high-stress conditions. We sought to identify any trends in demographics, hemodynamics, or similar factors in subjects with the highest anxiety or poorest tolerance of the experience. Methods Volunteers participated in one of four centrifuge training programs of varied complexity and duration, culminating in two simulated suborbital spaceflights. At most, subjects underwent seven centrifuge runs over 2 d, including two +Gz runs (peak +3.5 Gz, Run 2) and two +Gx runs (peak +6.0 Gx, Run 4) followed by three runs approximating suborbital spaceflight profiles (combined +Gx and +Gz, peak +6.0 Gx and +4.0 Gz). Two cohorts also received dedicated anxiety-mitigation training. Subjects were evaluated on their performance on various tasks, including a simulated emergency. Results Participating in 2-7 centrifuge exposures were 148 subjects (105 men, 43 women, age range 19-72 yr, mean 39.4 ± 13.2 yr, body mass index range 17.3-38.1, mean 25.1 ± 3.7). There were 10 subjects who withdrew or limited their G exposure; history of motion sickness was associated with opting out. Shorter length training programs were associated with elevated hemodynamic responses. Single-directional G training did not significantly improve tolerance. Discussion Training programs appear best when high fidelity and sequential exposures may improve tolerance of physical/psychological flight stressors. The studied variables did not predict anxiety-related responses to these centrifuge profiles.Blue RS, Bonato F, Seaton K, Bubka A, Vardiman JL, Mathers C, Castleberry TL, Vanderploeg JM. The effects of training on anxiety and task performance in simulated suborbital spaceflight. Aerosp Med Hum Perform. 2017; 88(7):641-650. |
| Databáze: | OpenAIRE |
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