About a decade ago a close friend and a male in Law were diagnosed with Parkinson’s. They had the same involuntary restless leg/foot movements.
They had to clutch something like a desktop or table leg top to prevent their opposite side hand movements from being noticed or going out of control like their foot.
Their hand on the same side of their restless leg syndrome just laid still in their lap or on the seat cushion, they were setting on.
That is not a Parkinson’s tremor. That is merely loosening an ankle that feels tight, which everyone has done.
Head on over to youtube and see examples of Parkinson tremors. They are not something that exists for a few seconds. They are ongoing. Nothing in Putin’s ankle adjust shows this.