Introduction. After a serious injury (e.g., stroke), patients are enrolled in a phase 1 (i.e., to help inpatients recover from their impairments) and then a phase 2 (i.e., to help outpatients reduce the risk of injury recurrence and improve their quality of life) rehabilitation program (RP). Physical activity (PA) during phase 1 and 2 RP has been shown to limit patient disability (Anderson et al., 2016; Hashem et al., 2016). Sedentary behaviors (SB) during phase 1 RP were associated with longer hospital stay and higher risk of all-cause mortality (Ek et al., 2020). Little is known about the levels of PA and SB in inpatients and outpatients during and after RPs, as well as the motivational and affective variables that underlie them. The main objectives of the present study were to assess the levels of PA and SB during a phase 1 RP (inpatients) and in the first week after discharge from a phase 2 RP (outpatients) using device-based measures and to test their associations with motivational (i.e., intention, perceived capabilities, attitudes) and affective (i.e., depressive symptoms, anxiety, fatigue, pain intensity) variables. Outpatients’ levels of PA and SB, and their associations with the motivational and affective factors were compared with control participants (i.e., living in the community without care).
Methods. The dataset included 161 (34% women) participants (42 inpatients following a 3-week phase 1 RP, 68 outpatients following a 6-week cardiac phase 2 RP, and 51 control participants). PA and SB were assessed using a Polar™ watch during the phase 1 RP and using accelerometers during the week after discharge from the phase 2 RP, or during a typical week (control participants). Motivational and affective factors were assessed at baseline and at the end of the RPs for inpatients and outpatients, and at baseline for control participants.
Results. During the phase 1 RP, inpatients (i.e., Polar™) averaged 3503 (± 4141) steps, 1.17 (± 1.19) hours of walking, 7.8 (± 20.40) min of moderate-to-vigorous intensity PA (MVPA), and 6.97 (± 3.1) hours of sitting per day. The perceived capability to engage in PA during the RP was associated with the number of steps taken during the phase 1 RP (p = .039). In the week after discharge from the phase 2 RP, outpatients (i.e., accelerometers) took a mean of 10083 (± 4493) steps per day and spent an average of 60 (± 35) min in MVPA and 549 (± 59) min sitting per week. In the week following discharge from the rehabilitation, 88.2 % of outpatients achieved the recommended weekly level of 150 min of MVPA. Results showed that outpatients spent an average of 18 min more per day in MVPA than control participants (p = .038). Among outpatients, the likelihood of meeting the recommended level of 150 min of MVPA per week was higher if their perceived capability, instrumental and affective attitudes at the end of phase 2 RP were stronger (OR = 1.3, p = .030; OR = 1.03, p = .006; OR = 1.1, p < .001, respectively). The same associations were observed among control participants.
Conclusion. Patients admitted to a phase 1 RP after an acute hospital stay have low levels of PA and high levels of SB. Outpatients showed relatively high levels of PA in the first week after discharge from their phase 2 RP. These findings highlight the importance of developing strategies to increase PA and decrease SB in inpatients. They also suggest that motivational factors may influence PA after and during RP.