Short Term Bed Rest Study: Evaluation of the Use of Artificial Gravity, Induced by Short-arm Centrifugation — SAG  

Body Weight Changes Clinical Trial

Official title: Short Term Bed Rest Study: Evaluation of the Use of Artificial Gravity, Induced by Short-arm Centrifugation or the Appliance of Definite Combined Training Program to Counteract Effects of Bed Rest (Acronym: SAG Study)

Status Completed

Clinical Trial Summary

Randomized cross-over design with 10 male subjects and 3 campaigns to test whether the negative effects of bed rest (6º head-down tilt) on the various systems of the body and the consequences to health of simulated weightlessness can be counteracted by the use of a defined training programme.

Clinical Trial Description

The SAG study was a single center, open-label crossover trial with healthy men conducted in three campaigns at the Institute of Aerospace Medicine, Cologne, Germany.

The subjects were quasi randomized alternatively by enrolment to undertake the different training interventions or to be in the control group during 5 days of immobilisation in 6° head down tilt position. The subjects were quasi randomized either to the one of the training programs or the non-training group depending on the arrival at the Institute of Aerospace Medicine.

The study started November 01st, 2010 and was finished May 29th, 2011. The first campaign lasted from November 01st to November 21sh, 2010, the second campaign from January 10th to January 30th, 2011 and the third campaign from May 09th to May 29th, 2011.

Each campaign comprised a 5 day adaptation-, a 5 day intervention phase in HDT bed rest, and a 5 day recovery phase (15 days in total) in-house at the Metabolic Ward of the Institute of Aerospace Medicine.

Baseline Data were collected during the adaptation phase (BDC Baseline Data Collection) when subjects could move free inside the lab. The intervention was administered during the bed rest phase where the subjects had to lie in bed in 6° head down tilt (HDT Head Down Tilt) position and were not allowed to get up. Recumbency was to be adhered to at all times including all activities (hygienic procedures, leisure activities). The bed rest phase was followed by a recovery phase (R+). ;

Study Design

Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Basic Science

Related Conditions & MeSH terms

• Acid-Base Imbalance
• Body Weight
• Body Weight Changes
• Bone Diseases
• Bone Diseases, Metabolic
• Cardiovascular Abnormalities
• Metabolic Diseases
• Muscular Atrophy
• Protein Metabolism
• Sprains and Strains

• NCT number: NCT01820702
• Study type: Interventional
• Source: DLR German Aerospace Center
• Status: Completed
• Phase: N/A
• Start date: November 2010
• Completion date: May 2011