Older adults undergoing rehabilitation are often complicated by functional and nutritional impairments. [1][2][3] Research has highlighted the importance of nutritional rehabilitation in addressing frailty, malnutrition, and sarcopenia in this population. Combining rehabilitation and nutritional care can significantly improve physical function, activities of daily living, and overall quality of life in older adults. 4) Therefore, effectively addressing nutritional and functional impairments is key for successful rehabilitation in this population.However, although several terms are used to describe functional impairment, they are not widely recognized by healthcare providers and may not be recognized when they occur. 5) Therefore, we conducted a survey to determine the awareness of the terms used to describe functional impairments among staff working in convalescent wards.We surveyed the staff of a hospital convalescent ward. The survey used Google Forms (Google LLC, Mountain View, CA, USA), which preserved the anonymity of the respondents, and contained questions to investigate staff awareness of terms related to different areas of dysfunction, including post-intensive care syndrome (PICS), locomotive syndrome, sarcopenia, frailty, disuse syndrome, and cachexia as terms related to functional impairment. PICS is mainly discussed in the acute phase, while disuse syndrome and cachexia are often discussed after the acute phase. Locomotive syndrome, sarcopenia, and frailty are well-known terms to describe changes in health status. Although all these terms involve the acute to the chronic phases, we included them in this study because of their different central phases. The respondents were asked whether they were familiar with each term, choosing from a 5-point scale of "Well known," "Known," "Can't say either," "Don't know," or "Not at all familiar." Although the survey items collected personal information, all items were controlled by response ID and did not contain identifiable personal information.This study was approved by the Institutional Review Board of