Although researchers have highlighted the benefits of adopting an external focus of attention for rehabilitation, studies have consistently revealed low external focus use by physiotherapists. Consequently, the purpose of this research was to explore factors influencing physiotherapists' focus of attention use and to gain insight into the barriers, and potential solutions, related to effective external focus use. Eight physiotherapists, working with musculoskeletal rehabilitation clients, first completed the Therapists' Perceptions of Motor Learning Principles Questionnaire and then participated in virtual one-on-one interviews. The interviews followed a semistructured interview guide and were analyzed using a total quality framework approach to qualitative content analysis. Data showed that physiotherapists' focus of attention use was influenced by physiotherapist, client, and task characteristics/experiences, as well as focus of attention statement provision strategies. Furthermore, the main barriers discussed related to educational experiences, reinforcement of internal focus of attention statement use and aspects related to research. Solutions presented to these barriers included the incorporation of focus of attention content into both the Canadian physiotherapy curriculum and continued education. Overall, these results advance our knowledge of factors underlying physiotherapists' focus of attention use and barriers that must be overcome to successfully translate the focus of attention research into physiotherapy. [For Part 1, see EJ1387168.]