This research critique examines two qualitative research papers by Hashimoto et al. (2015) and Lange et al. (2019) focusing on the impact of physical activity on elderly patients with rheumatoid arthritis. The critique analyzes the research problem, rationale, purpose, and objectives of the studies, highlighting how they address the PICOT question regarding the improvement of quality of life through physical activity. The report compares the methods used, including randomized control trials and actigraph studies, and discusses their respective benefits and limitations. It summarizes key findings, emphasizing the positive effects of physical activity on patients' quality of life and the implications for nursing practice. Furthermore, the critique addresses ethical considerations, such as informed consent and confidentiality, and how these were handled in the studies. The report concludes by underscoring the importance of evidence-based interventions in developing effective nursing care for elderly patients with rheumatoid arthritis.