Figure 3 Changes in each parameter pre-, during, and post-rehabilitation. No significant changes in blood pressure were observed during any of the rehabilitation stages. Although heart rate and respiratory rate increased during the rehabilitation program, no adverse events occurred. SpO2 showed a slight decrease during in-bed exercises and transfers to a wheelchair, but symptoms were minimal and the situation was deemed acceptable. EtCO2 remained elevated until Day 6 regardless of rehabilitation but decreased from Day 7. Changes related to the rehabilitation program were largely not observed. EtCO2 ended daytime monitoring after day 49. The values shown are means. BP, blood pressure; bpm, beats per minute; EtCO2, end-tidal carbon dioxide tension; HR, heart rate; RR, respiratory rate; SpO2, saturation of percutaneous oxygen.