Schlegel-UW Research Institute for Aging
Cerebrovascular factors involved in postural control in older adults and astronauts - insights from the recent CIHR-CSA bed rest study — Light-headedness and fainting occurs when the cardiovascular system is unable to maintain arterial pressures during rapid changes in posture, such as standing up from a horizontal position. Some astronauts experience such symptoms after returning to Earth from space and the underlying factors are still poorly understood. The research team will analyze data from the recent CIHR-based Bed Rest Study of 55-65-year-old men and women wich they propose can provide information on how the blood supply to the brain is related to fainting. The results will be an important step towards the prevention of fainting in astronauts and people on Earth.