Oh, of course! You don't need weights at all, just repetition. Check this.... Get yourself a 2 x 4 and lay it flat on the ground. If you don't have one find a step with some nearby handrails. Do sets of toe raises or calf raises, whatever you call em in your region. Do them on one leg at a time then switch. You can count but I do them until the calf starts to burn. Great work out for the twitch muscles in your lower leg. Not to mention you'll shave off up to second on your dash time and your burst on the court will improve. I also suggest that you find a box, table, or even the central air unit outside for this one. Whatever it is, it needs to be only about two feet off of the level ground. The exercise begins by you placing one foot on the box(to the point where your thigh is parallel to the ground)and thrusting straight up into the air. When you come back down switch the leg and do the same thing. Alternate and countinue as you wish. This strengthens your knees AND improves on your explosiveness to the rim. If those two require too much movement, try the "invisible chair". Of course you put your back up against a wall and simulate sitting in a chair that isn't even present. Try to keep your thighs parallel to the floor as well here. I If you can't handle the burn stay out of the kitchen.