Feasibility of using quadriceps-strengthening exercise to improve pain and sleep in a severely demented elder with osteoarthritis - a case report.

"Declaration of competing interests None of the authors receives reimbursements, fees, funding, or salary from an organisation or held any stocks or shares in an organisation that may in any way gain or lose financially from the publication of this paper in the past five years. None of the authors has any nonfinancial competing interests they would like to declare in relation to this paper."

"AcknowledgementsThe first author was supported by the Intramural Grant Program and the Hartford Center of Geriatric Nursing Excellence, College of Nursing, University of Arkansas for Medical Sciences while this research was being conducted. We thank Ms. Pamela Avaltroni and Melissa Grubbs for their assistance during the data collection. We also thank Ms. Elizabeth Tornquist and Mr. William Gabello for editorial assistance during the preparation of this manuscript. Finally, we thank Mr. T and his family for participating in this project. Written consent was obtained from the patient and his family for publication of the patient's details."