This study evaluated the association between the ability to sit and rise from the floor with and without support and all-cause mortality in adults age 51 to 80.

There was a significant association between the use of more support to sit and rise from the floor and increasing all-cause mortality.

via Simple Sit Test Predicts Long Life.

Our profession typically uses chair-to-stand testing as part of a senior supplement.  Should we be considering the use of the sit-rise test instead?