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Miniature Exercise Device-2 (MED_2)
Principal Investigator
Research Area:
Cardiovascular physiology
Exercise physiology
Technology development
Species Studied
Scientific Name: Homo sapiens Species: Human

This International Space Station (ISS) in-flight technology demonstration is being conducted to evaluate the MED-2 as a potential resistance and aerobic exercise device for use during time aboard the Multi-Purpose Crew Vehicle (MPCV). For demonstration on the ISS, the MED-2 device will be securely attached to the ARED plate. Astronauts will be asked to participate in a minimum of two and up to four in-flight sessions consisting of deadlift resistance exercise and aerobic rowing exercise. Astronauts will be asked to tape markers to specific anatomical land marks, set-up video cameras, and wear a heart rate monitor to allow for biomechanic and physiological data collection during each session. A member of the investigative team and an Astronaut, Strength, Conditioning, and Rehabilitation (ASCR) group will be on-console to provide real-time guidance. The astronaut will be asked to complete a questionnaire regarding MED-2 usability after each session.

The first session will serve as a familiarization of the MED-2, and load setting verification for subsequent sessions. The subsequent session(s) will be biomechanic and heart rate data collection sessions. If proper deadlift and rowing form at high, medium, and low loads with proper camera placement for biomechanical evaluation are demonstrated and quality heart rate data is collected during the first two sessions then no additional sessions will be requested. Subsequent sessions will only include the exercise (rowing or deadlift) that did not meet success requirements.

Primary objective:
Evaluate the operation of a single-loading output exercise device to accommodate exercise body movement effectively in weightless environment.

Secondary objectives:

  1. Evaluate the ability to achieve effective aerobic exercise with rowing in weightless environment.
  2. Evaluate the kinematics of exercising with single cable device in microgravity.
  3. Identify the operational volume needed to perform planned MPCV exercises.
  4. Identify the foot placement area during exercise to inform MPCV foot plate requirements.

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Exercise test
Technology assessment

Data Information
Data Availability
Archiving in progress. Data is not yet available for this experiment.

Exercise device data
Heart rate

Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Expedition 48 06/18/2016 09/06/2016 80 days
Expedition 49 09/06/2016 10/30/2016 54 days
Expedition 50 10/28/2016 04/09/2017 164 days
Expedition 51 04/09/2017 06/02/2017 55 days
Expedition 52 06/02/2017 09/02/2017 92 days
Expedition 53 09/02/2017 12/14/2017 102 days
Expedition 54 12/14/2017 02/27/2018 75 days
Expedition 55 02/27/2018 06/03/2018 96 days
Expedition 56 06/03/2018 10/04/2018 123 days

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Jessica Keune
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Proposal Date