Astronomical Bone Loss Recorded From Space Travel

The mission patch for the TBone project. Photo was taken by Canadian Space Agency astronaut David Saint-Jacques during his mission aboard the International Space Station. (Credit: Canadian Space Agency)

UCalgary TBone study reveals impacts of pre-flight and in-flight exercise on bone loss.

by Kirstyn MacGillivary
McCaig Institute for Bone and Joint Health
University of Calgary

CALGARY, Alb. — Escaping the Earth’s orbit and floating through space for a six-month mission results in an average bone loss equating to nearly two decades of bone loss on earth. That means a 40-year old astronaut returns to Earth with a 60-year old skeleton.

Findings from the TBone study, published in the British Journal of Sports Medicine, reveal that bone loss progresses with the length of a space mission despite daily exercise programs designed to prevent bone loss.

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