Babak Alagha

Babak Alagha

Doctor of Chiropractic in Virginia State

Title: Effects of microgravity on musculoskeletal physiology


Dr. Babak Alagha is a licensed medical doctor in Iran and licensed doctor of Chiropractic in Virginia State, USA. He graduated from Iran University of Medical Sciences in 1999. In 2008, he achieved Doctorate degree in Chiropractic from life Chiropractic College West located in California, USA. He also received a postgraduate certificate in sports and exercise medicine from United Kingdom in 2007. Achievements: * He was granted prestigious awards by Mr.Khatami (the former president of Iran) and the dean of Iran Air Force SHAHID SATTARI University of Aeronautics and Technology for dedicating his work to aviation organization and educating pilots in Iran. * He presented his hypoxia research in 76th Aerospace Medical Association Annual Scientific Meeting in Kansas City, USA in May 2005. The research was ranked as top 5 by Space Medicine Branch Committee in Young Investigator Award section. It has been the first time that the Young Investigator Award section has had a contestant from Iran. *Dr. Babak is an honorary senior lecturer in Aja University of Medical Sciences in Tehran, Iran. There he handing courses such as “Exercise physiology” and “Effects of microgravity on musculoskeletal system”.


The human body is an amazing machine that has adapted itself well to gravity and the surrounding environment on Earth, enabling it to function at optimum capacity under such conditions. Short and long-term exposure to microgravity can lead to some adverse responses from a physiological and cellular metabolic standpoint, which can have serious medical implications on the physical and mental health of humans while living in space and during the return to earth. Astronauts’ exposure to microgravity results in a headward shift of bodily fluids and the removal of weight from otherwise weight-bearing bones. These effects can result in significant changes to the cardiovascular system as well as muscle atrophy in antigravity muscles, which can ultimately increase the risk of fractures, premature osteoporosis, back pain and injuries to soft tissues both during and after the flight. Exercise is an important countermeasure to reduce the rate of deterioration in the musculoskeletal system, however, significant physiological decline still occurs. This paper reviews the physiological changes in the human musculoskeletal system that are associated with exposure to a microgravity environment and outlines practical countermeasures that can help mitigate such effects for short and long-term space flights.