5X Sit-to-Stand Test (5XSST)
lower extremity muscle strength
This test assesses postural control and lower extremity muscle strength in relation to balance and falling risk. The participants are seated on a chair (43-45cm high) with their back straight and after crossing their arms over their shoulders, they are asked to get up and down five times as fast as they can, without stopping. The total time is measured with a stopwatch. There are normative values for this test according to age, with >12 second test time pointing to low functional strength and increased risk of falling for healthy older adults [