Physical and Cognitive Performance in Older Adults With Fatigue

fatigue severity scale is a unidimensional, nine-item questionnaire capturing information on the impact and severity of fatigue. Participants rated the 9-items on a 7-point, Likert-type scale with anchors of strongly disagree (1) and strongly agree (7) based on the previous week. The overall score is an average of the individual item scores and can range between 1 and 7.