Table 3. Clinical examination items.

Baseline clinical characteristics

ㆍBasic information: age, sex, weight, heightㆍPremorbid modified Barthel index (MBI)ㆍPremorbid functional ambulation category (FAC)ㆍ The Acute Physiology and Chronic Health Evaluation (APACHE II) scoreㆍCardio-pulmonary resuscitation (CPR) within 24 hours prior to admission to the ICU •Primary diagnostic category of ICU Admission •Comorbidity •Geriatric disease

Outcomes

ㆍThe number and percentage of completed in-bed cycling/stepping sessions ㆍThe duration and percentage of in-bed cycling/stepping sessions ㆍThe number of cessations of in-bed cycling/stepping sessions

ㆍThe interval from ICU admission to the first session of in-bed cycling/stepping ㆍ The number and percentage of completed conventional rehabilitation sessions ㆍ The duration and percentage of conventional rehabilitation sessions ㆍ The number of cessations of conventional rehabilitation sessions ㆍ The number of adverse events ㆍ Level of consciousness: Richmond agitation-sedation scale (RASS), confusion assessment method for the ICU (CAM-ICU) ㆍ Mobility: functional ambulatory category (FAC), functional status score (FSS-ICU), short physical performance battery score (SPPB), de Morton Mobility Index (DEMMI), falls efficacy scale (FES), activities-specific balance confidence scale (ABC) ㆍMotor power: sum of Medical Research Council (MRC) score, hand grip strength (HGS) ㆍActivities of daily living (ADL): modified Barthel index (MBI) ㆍQuality of life (QOL): 36-item short form survey (SF-36) version 2.0 ㆍOthers: Pittsburgh rehabilitation participation scale (PRPS), days to initiate ambulation (FAC ≥2), mortality-28 days, duration of mechanical ventilation, length of stay in the ICU, length of stay in the hospital, concomitant occupational therapy and its application dose, concomitant pulmonary rehabilitation and its application dose