Research Subheader

Shuttle Extended Duration Orbiter Medical Project (EDOMP)

The Extended Duration Orbiter Medical Project (EDOMP) was conducted from 1989 to 1996 to address concerns about the physiologic condition of Shuttle astronauts on missions up to 16 days in duration. Before this project began, the Shuttle had not flown longer than 10 days. Space travelers may faint when they stand up (orthostatic intolerance) after all but the shortest flights, and their muscle strength may be reduced. The program focused on ensuring that the crew could land the Orbiter and exit from it without help after a 16-day flight. Astronauts on 40 Shuttle flights (STS-32 through STS-72) participated in 36 EDOMP investigations. The results of these investigations were used to make rules and recommendations for 16-day flights. Several types of exercise devices (i.e. a treadmill, a cycle ergometer, and a rower) were among the devices and procedures developed to prevent the deconditioning of the body that occurs during space flight. The crew transport vehicles, in which astronauts are now transported after landing, were built to enhance medical capabilities at the landing site as well as crew comfort and safety. A database, 125 formal publications, and 299 abstracts, technical papers, and presentations have also resulted from the EDOMP.

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Related Experiments
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  + Air Monitoring and Atmosphere Characterization (DSO 611)
  + Evaluation of the Ergometer Vibration Isolation System (DTO 658)
  + The Effects of Prolonged Space Flight on Head and Gaze Stability During Locomotion (DSO 614)
  + Assessment of Human Factors (DSO 904)
  + Dried Blood Method for In-flight Storage (DSO 325)
  + Orthostatic Function During Entry, Landing, and Egress (DSO 603)
  + In-flight Urine Collection Absorber Evaluation (IUCAs) (DSO 328)
  + Validation of Predictive Tests and Countermeasures for Space Motion Sickness (DSO 401)
  + Salivary Cortisol Levels During the Acute Phases of Space Flight (DSO 450)
  + Combined Blood Investigations (DSO 453)
  + Inflight Salivary Pharmacokinetics of Scopolamine and Dextroamphetamine (DSO 457)
  + In-flight Pharmacokinetics of Acetaminophen in Saliva (DSO 458)
  + Noninvasive Estimation of Central Venous Pressure During Space Flight (DSO 462)
  + In flight Assessment of Renal Stone Risk Factor (DSO 464)
  + Muscle Biopsy (DSO 475)
  + Inflight Aerobic Exercise (DSO 476)
  + The Evaluation of Concentric and Eccentric Skeletal Muscle Contractions Following Space Flight (DSO 477)
  + In-Flight LBNP: Countermeasure to Reduce Post-Space Flight Orthostatic Intolerance (DSO 478)
  + Hyperosmotic Fluid Countermeasure (DSO 479)
  + In-flight Evaluation of a Portable Clinical Blood Analyzer (DSO 492)
  + Orthostatic Function During Entry, Landing and Egress (DSO 603B)
  + Postural Equilibrium Control During Landing/Egress (DSO 605)
  + Muscle Size and Lipids (DSO 606)
  + Cardiovascular Responses to Lower Body Negative Pressure Following Space Flight (DSO 607)
  + Effects of Space Flight on Aerobic and Anaerobic Metabolism During Exercise (DSO 608)
  + In-flight Assessment of Renal Stone Risk (DSO 610)
  + Changes in Endocrine Regulation of Orthostatic Tolerance Following Space Flight (DSO 613)
  + Evaluation of Functional Skeletal Muscle Performance Following Space Flight (DSO 617)
  + Effects of Intense Exercise During Space Flight on Aerobic Capacity and Orthostatic Function (DSO 618)
  + Gastrointestinal Function During Extended Duration Space Flight (DSO 622)
  + In-flight LBNP Test of Countermeasures and End-of-Mission Countermeasure Trial (DSO 623)
  + Pre- and Postflight Measurement of Cardiorespiratory Responses to Submaximal Exercise (DSO 624)
  + Cardiovascular and Cerebrovascular Responses to Standing Before and After Space Flight (DSO 626)
  + Passive Cycle Isolation System (PCIS) (DTO 670)
  + Inertial Vibration Isolation System (IVIS) (DTO 682)
  + Microgravity Measurement Device (MMD) (DTO 913)
  + Cardiovascular Deconditioning Countermeasure Assessment (DSO 402)
  + Ophthalmoscopy (DSO 414)
  + Evaluation of Cardiac Rhythm Disturbances During Extravehicular Activity (DSO 482)
  + Changes in Baroreceptor Reflex Function After Space Flight (DSO 601)
  + Blood Pressure Variability During Space Flight (DSO 602)
  + Energy and Metabolic Requirements for Extended Duration Space Flight (Energy Utilization) (DSO 612)
  + In-flight Use of Florinef to Improve Orthostatic Intolerance Postflight (DSO 621)
  + Assessment of Circadian Shifting in Astronauts by Bright Light (DSO 484)
  + Visual-Vestibular Integration (DSO 604)