1) Development of a diagnostic tool for the assessment of endurance capacity from respiratory and cardiovascular kinetics in response to changes in exercise intensity.
2) Development of a physiological model to explore the delay and distortion of muscle VO2 signals during their travel to the lungs.
The EKE tests performed by crewmembers before and after space flight show a significant change in oxygen uptake (VO2) muscle kinetics while there were very little changes to VO2 respiratory kinetics. The kinetics of heart rate were not affected by microgravity during space flight. However, the absolute values of heart rate during the low and high step were significantly influenced by the prolonged stay on the International Space Station (ISS). Cardiac output changed significantly but stroke volume did not. Significant changes from pre- to post flight weren’t seen in VO2max, however, a significant increase was noted during the post flight period. In addition, significant changes were noted in workload max during the pre- to post flight period.
|Mission||Launch/Start Date||Landing/End Date||Duration|
|Expedition 19||03/26/2009||10/11/2009||199 days|
|Expedition 20||05/27/2009||10/11/2009||137 days|
|Expedition 21||10/11/2009||12/01/2009||51 days|
|Expedition 22||11/30/2009||03/18/2010||109 days|
|Expedition 23||03/18/2010||06/01/2010||75 days|
|Expedition 24||06/01/2010||09/25/2010||117 days|
|Expedition 25||09/24/2010||11/25/2010||31 days|
|Expedition 26||11/26/2010||03/16/2011||111 days|
|Expedition 27||03/14/2011||05/23/2011||70 days|
|Expedition 28||05/23/2011||09/15/2011||115 days|
|Expedition 29||09/16/2011||11/21/2011||40 days|
|Expedition 30||11/14/2011||04/27/2012||166 days|
|Expedition 31||04/27/2012||07/01/2012||65 days|
|Expedition 32||07/01/2012||09/16/2012||78 days|