Orthostatic tolerance
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Healthy male volunteers were recruited into this study. Age 20-28 years, height 168-175 cm and weight 61-71 kg; Comprehensive physical, psychological, and routine blood chemistry examinations were performed to select qualified subjects for this study. No medication, smoking, alcohol, or caffeinated drinks were allowed during the study.
Exclusion criteria
Exclusion criteria: Visual and auditory disorders, middle ear diseases, history of mental disorder, operation history, historyof seizures, history of hernia, skeleton-muscle diseases and sleep disorders
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Orthostatic tolerance test;cardiac systolic function;cerebral blood flow;heart rate variability;blood; | — |
Secondary
| Measure | Time frame |
|---|---|
| weigh;heart rate; | — |