The Sit-to-Stand (STS) movement can be described as the change in body posture from a sitting to standing position. In more biomechanical terms, it can be defined as a transitional movement to the upright posture requiring movement of the center of mass from a stable to a less stable position over extended lower extremities. The STS movement is an important skill because it is related to functioning and mobility, and is a prerequisite for walking. The execution of the STS movement varies within and between persons, because many factors influence the way how people perform an STS movement, e.g. seat height, arm rests, feet position, age, and lower extremity muscle strength. Literature indicates that also health condition, e.g. neuromuscular disorders, joint disorders and stroke, can result in specific changes in the execution of the STS movement.

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Allergan, Medtronics, LIVIT Orthopedie, Van Wijngaarden Medical
Erasmus MC: University Medical Center Rotterdam
H.J. Stam (Henk)
Erasmus MC: University Medical Center Rotterdam

Janssen, W. (2008, October 22). The Sit-to-Stand Movement recovery after stroke and objective assessment. Retrieved from