Practice taekwando often about twice a week, stretch half an hour before and after exercise
my job requires me to sit in front of computer for extended period of time per day, and my main source of entertainment is also my computer.
me knee has this soreness when I about to stand up from sitting, standing up from kneeling down, or going downstairs, this usually happens the first time I do these movements, but as I do them in more repetitions the soreness becomes less apparent.

is this a sign of arthritis?

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