The purpose of this qualitative study was to describe the experience of participating in a high-intensity functional exercise programme among older people dependent in activities of daily living (ADL) and living in residential care facilities. Interviews were conducted with nine older people, aged 73-91, and dependent in ADL who had participated in a high-intensity functional exercise programme. Qualitative content analysis was used in analysing the interviews. The findings show that the informants, despite extensive impairments, multiple diagnoses, and advanced age, displayed a belief in the positive effects of the programme, a strong desire to be active, and the will to strive to avoid further loss of capacity. They were struggling with failing bodies that constituted barriers to exercise. Support from the supervisors and belief in personal success facilitated performance of the exercises. The informants related physical and mental improvements that affected their daily life positively and that exercising in a group was stimulating and created a sense of togetherness. The effort was seen as worthwhile because participating in strenuous exercise could imply that they might overcome bodily limitations to achieve increased vitality and improved quality of life.