Toulouse Male Long Term Bed Rest 2001-2002
Summary
Microgravity during space flight induces physiological changes that affect astronauts' health and performance. Space flight simulations such as prolonged bed rest can mimic some of these changes and provide study conditions that are more accessible than during space flight. The European Space Agency, ESA together with the French national space agency, CNES and the Japanese national space agency, NASDA are performing extensive studies using long duration bed rest. Previous studies including several long and short term bed rest campaigns have yielded significant medical data on the physiological changes induced by space flight. These data can be used to study the effect of countermeasures, methods helping to prevent these physiological changes. The long duration bed rest, lasting 3 months undertakes a variety of investigations involving 28 subjects. This study focuses on countermeasures, studying the effect of a bone tissue stabilisation medication and resistive exercises to determine their suitability for use during long duration stays on ISS. The physiological changes recorded during space flight and bed rest mimic those observed in some diseases and in the aging process. Significant clinical applications are expected as a direct result of this experiment and future equivalent studies.
Timeline
- Start
- 2001-08
- Primary completion
- —
- Completion
- 2003-06
Publications
- Results Rittweger J, Frost HM, Schiessl H, Ohshima H, Alkner B, Tesch P, Felsenberg D. Muscle atrophy and bone loss after 90 days' bed rest and the effects of flywheel resistive exercise and pamidronate: results from the LTBR study. Bone. 2005 Jun;36(6):1019-29. doi: 10.1016/j.bone.2004.11.014. Epub 2005 Apr 2.
- Results Watanabe Y, Ohshima H, Mizuno K, Sekiguchi C, Fukunaga M, Kohri K, Rittweger J, Felsenberg D, Matsumoto T, Nakamura T. Intravenous pamidronate prevents femoral bone loss and renal stone formation during 90-day bed rest. J Bone Miner Res. 2004 Nov;19(11):1771-8. doi: 10.1359/JBMR.040811. Epub 2004 Aug 23.
- Results Rittweger J, Felsenberg D. Patterns of bone loss in bed-ridden healthy young male subjects: results from the Long Term Bed Rest Study in Toulouse. J Musculoskelet Neuronal Interact. 2003 Dec;3(4):290-1; discussion 292-4. No abstract available.
- Results Gallagher P, Trappe S, Harber M, Creer A, Mazzetti S, Trappe T, Alkner B, Tesch P. Effects of 84-days of bedrest and resistance training on single muscle fibre myosin heavy chain distribution in human vastus lateralis and soleus muscles. Acta Physiol Scand. 2005 Sep;185(1):61-9. doi: 10.1111/j.1365-201X.2005.01457.x.
- Results Rudnick J, Puttmann B, Tesch PA, Alkner B, Schoser BG, Salanova M, Kirsch K, Gunga HC, Schiffl G, Luck G, Blottner D. Differential expression of nitric oxide synthases (NOS 1-3) in human skeletal muscle following exercise countermeasure during 12 weeks of bed rest. FASEB J. 2004 Aug;18(11):1228-30. doi: 10.1096/fj.03-0792fje. Epub 2004 Jun 4.
- Results Trappe S, Trappe T, Gallagher P, Harber M, Alkner B, Tesch P. Human single muscle fibre function with 84 day bed-rest and resistance exercise. J Physiol. 2004 Jun 1;557(Pt 2):501-13. doi: 10.1113/jphysiol.2004.062166. Epub 2004 Apr 2.
- Results Belin de Chantemele E, Pascaud L, Custaud MA, Capri A, Louisy F, Ferretti G, Gharib C, Arbeille P. Calf venous volume during stand-test after a 90-day bed-rest study with or without exercise countermeasure. J Physiol. 2004 Dec 1;561(Pt 2):611-22. doi: 10.1113/jphysiol.2004.069468. Epub 2004 Aug 26.
- Results Belin de Chantemele E, Blanc S, Pellet N, Duvareille M, Ferretti G, Gauquelin-Koch G, Gharib C, Custaud MA. Does resistance exercise prevent body fluid changes after a 90-day bed rest? Eur J Appl Physiol. 2004 Aug;92(4-5):555-64. doi: 10.1007/s00421-004-1121-6. Epub 2004 May 29.
- Results Reeves NJ, Maganaris CN, Ferretti G, Narici MV. Influence of simulated microgravity on human skeletal muscle architecture and function. J Gravit Physiol. 2002 Jul;9(1):P153-4.
- Perez-Diaz S, Baselet B, Lovric A, Lundberg TR, Neefs M, Daenen L, Rullman E, Fernandez-Gonzalo R. Long non-coding RNAs Kcnq1ot1 and Lncpint are involved in skeletal muscle atrophy induced by the space exposome. J Physiol. 2025 Jul;603(14):3973-3986. doi: 10.1113/JP288987. Epub 2025 Jun 29.
- Belavy DL, Ohshima H, Rittweger J, Felsenberg D. High-intensity flywheel exercise and recovery of atrophy after 90 days bed--rest. BMJ Open Sport Exerc Med. 2017 Jul 24;3(1):e000196. doi: 10.1136/bmjsem-2016-000196. eCollection 2017.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Ethidronate | Unknown | — | — |
Indications
No indication recorded.