I would suggest that you can get a lot out of 10kg dumbbells by being creative and very aware. Figure out things to do with the dumbbells that are difficult, then do them carefully with constant awareness of possible injuriousness. Asymmetrical stuff is helpful since most of our activities don't happen on both sides at once (for instance, like carrying groceries) So carry one dumbbell around the house or office with you while you do other things. Set it down. Pick it up with each hand. Put it under the desk. Then fetch it out. Do the things you do every day but do them with weight. Standard weightlifting is great but it can ignore all the smaller muscles that we use every day that support the larger ones. Just don't hurt yourself by either doing the right thing too much or the wrong thing once too often.
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I would suggest that you can get a lot out of 10kg dumbbells by being creative and very aware. Figure out things to do with the dumbbells that are difficult, then do them carefully with constant awareness of possible injuriousness. Asymmetrical stuff is helpful since most of our activities don't happen on both sides at once (for instance, like carrying groceries) So carry one dumbbell around the house or office with you while you do other things. Set it down. Pick it up with each hand. Put it under the desk. Then fetch it out. Do the things you do every day but do them with weight. Standard weightlifting is great but it can ignore all the smaller muscles that we use every day that support the larger ones. Just don't hurt yourself by either doing the right thing too much or the wrong thing once too often.