Yes this is a good test and a good practice ...

The Sitting-Rising Test (SRT) is a simple, no-equipment clinical assessment that measures non-aerobic physical fitness—specifically core/leg strength, balance, and flexibility—by evaluating an individual's ability to sit down on and rise from the floor.

I do practice this and hanging but do not practice full body weight pull-up as it is too difficult and risky for most older age shoulders (re rotator cuff)