Introduction: The ability to move from a sitting to a standing position is an essential element of physical fitness. It requires considerable muscle capacity, broad range of motion, proper technique and balance. In timed sit to stand tests, an interval of 30 seconds is often used, in which the subject performs as many correct movements of getting up as possible. Thus, we obtain data on an individual’s muscle strength of the lower extremities. Purpose: The purpose of this thesis was to review research on the measurement properties of the thirty second sit to stand test in various groups of subjects. Methods: A descriptive method with a systematic review of the literature was used fort his thesis. The literature review was conducted in the PubMed database and included research articles on measurement properties that met the inclusion criteria. The search for literature was limited to research articles in Slovenian and English language, published by the end of November 2020. Results: Thirteen studies were included in the literature review. Reliability was tested in ten, validity in eight, and ability to detect changes also in ten studies. The reliability results showed that the 30-second sit-to-stand test is highly to excellently reliable both for intrarater (ICC = 0.84–0.97) and interrater reliability (ICC = 0.92–0.98). Validity results are varied and mostly suggest a moderate association with comparable fitness or muscle performance tests. The 30-second sit to stand test distinguishes well between high and low physically active individuals and correlates negatively with age. Discussion and conclusion: A review of the literature has shown that the 30-second sit-to-stand test is a reliable and valid method of assessment and its use in a clinical setting is appropriate. The test does not require much space, material or time. It would make sense to unify test protocols because various different versions of this test were performed in the included studies. To capture a broader range of effects and for more effective assessment of the patient it is recommended to combine the 30-second sit-to-stand test with other assessment instruments or to include it in a battery of assessment tools.
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