The first Galileo Space-Study examined its effects on muscle and bone mass in simulated weightlessness (55 days bedrest, 10 min., 5 days/week 12-26Hz). The control group did not have any training. While the control group showed massive loss of bone mass (over 15%) the Galileo Group could almost completely compensate this effect (in strict bed-rest over 55 days!) and even showed higher bone mass (+4%) after 1 year follow-up...