If deconditioning or orthostatic intolerance start w recumbent semirecumbent swim row cycle of short duration e g 5 10min day before gradual transition to upright exercise and longer durations 1

If deconditioning or orthostatic intolerance, start w/ recumbent/semirecumbent (swim, row, cycle) of short duration (e.g., 5-10min/day) before gradual transition to upright exercise and longer durations.¹