By a News Reporter-Staff News Editor at Defense & Aerospace Week -- Fresh data on Cardiovascular Research are presented in a new report. According to news reporting out of Houston, Texas, by VerticalNews editors, research stated, "Microgravity-induced physiologic changes could impair a crewmember's performance upon return to a gravity environment. The Functional Task Test aims to correlate these physiologic alterations with changes in performance during mission-critical tasks."
Our news journalists obtained a quote from the research from National Aeronautics and Space Administration, "In this study, we evaluated spaceflight-induced cardiovascular changes during 11 functional tasks in 7 Shuttle astronauts before spaceflight, on landing day, and 1, 6, and 30 days after landing. Mean heart rate was examined during each task and autonomic activity was approximated by heart rate variability during the Recovery from Fall/Stand Test, a 2-min prone rest followed by a 3-min stand. Heart rate was increased on landing day during all of the tasks, and remained elevated 6 days after landing during 6 of the 11 tasks. Parasympathetic modulation was diminished and sympathovagal balance was increased on landing day. Additionally, during the stand test 6 days after landing, parasympathetic modulation remained suppressed and heart rate remained elevated compared to preflight levels. Heart rate and autonomic activity were not different from preflight levels 30 days after landing. We detected changes in heart rate and autonomic activity during a 3-min stand and a variety of functional tasks, where cardiovascular deconditioning was still evident 6 days after returning from short-duration spaceflight."
According to the news editors, the research concluded: "The delayed recovery times for heart rate and parasympathetic modulation indicate the necessity of assessing functional performance after long-duration spaceflight to ensure crew health and safety."
For more information on this research see: Spaceflight-induced cardiovascular changes and recovery during NASA's Functional Task Test. Acta Astronautica, 2013;92(1):10-14. Acta Astronautica can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; Acta Astronautica - www.elsevier.com/wps/product/cws_home/310)
Our news journalists report that additional information may be obtained by contacting N.M. Arzeno, NASA, Johnson Space Center, Houston, TX 77058, United States. Additional authors for this research include M.B. Stenger, J.J. Bloomberg and S.H. Plats.
Keywords for this news article include: NASA, Texas, Houston, Aerospace, Cardiology, Heart Rate, Hemodynamics, United States, Cardiovascular Research, North and Central America
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