Conclusion
psychiatric
The PACINPAT intervention reached the intended participants and was attended by early dropouts and participants engaging in low or high doses. The high dose comprised 75% of the intended number of counseling sessions in approximately the intended interval between sessions. Group differences were already recognizable in the first two sessions according to session length and fidelity of content. This may represent a vulnerable stage of the intervention. Further research is needed to validate this and investigate potential improvement strategies. Frequently used behavior-focused (as opposed to outcome-focused) BCTs and adaptations made in dose (longer intervals) and content (MoVo) provide interesting insight into the potential needs of the population receiving this intervention for the first time. Overall, the intervention was rated positively by the participants. These findings are important for designing and implementing physical activity interventions in psychiatric care and for the future interpretation of the PACINPAT outcome evaluations.