Artificial gravity with ergometric exercise preserves the cardiac, but not cerebrovascular, functions during 4Â days of head-down bed rest

► We investigate changes of cardiac and cerebrovascular functions after AG training. ► The AG training eliminated cardiovascular deconditioning induced by 4 days of HDBR. ► The cerebrovascular functions were not affected significantly after training. ► The AG is an effective way of countermining cardiac deconditioning induced by HDBR.