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This paper aims to analyse whether time spent in sedentary behaviour was a discriminant criterion for frailty in older adults. This was a cross-sectional study conducted in a sample of 457 elderly individuals aged &amp;ge;60 years. Frailty was defined as the presence of three or more of the following criteria: Unintentional weight loss, low walking speed at a 4.57 m course, reduced manual grip strength, exhaustion and insufficient physical activity level. Participants were classified into two groups: Non-frail or frail. Exposure to sedentary behaviour was assessed by the time spent sitting during a typical week, according to the adapted version of the International Physical Activity Questionnaire. Descriptive (mean, frequency) and inferential statistics (Poisson regression, Pearson&amp;rsquo;s Chi-square, Receiver Operating Characteristic Curve) were used to analyse the data, comparing them to the time-related areas exposed to sedentary behaviour by gender and the presence of fragility. The prevalence of frailty was 22.1% ( n = 101). The most accurate cut-off points of sitting time for predicting frailty were &gt;495 min/day (men) or &gt;536 min/day (women). Time spent in sedentary behaviour can be used to indicate fragility in the elderly of both sexes.

Time Spent in Sedentary Behaviour as Discriminant Criterion for Frailty in Older Adults