My ds is also 10 months old and started walking this week. He is also very, very active and physically intense. I too have noticed that his usual sleep routine has been shot almost overnight. I would always feed him, then walk around while bouncing/rocking him in my arms, and he would fall asleep. Now, the minute I start bouncing him, he starts screaming.
If I truly believe that he is tired (rubbing eyes, irritable, yawning, etc.) then I hold him firmly in my arms until he goes to sleep, even if he cries some. I do not consider this CIO, as I am holding him, talking gently to him, rubbing his face, etc. I do not let him scream, though. I have stopped the bouncing because he seems to hate it so much. If he really won't calm down, then we stop naptime routine and try again later. But I am fairly insistent otherwise. I know him well enough to know when he is fussing to let off steam and relax enough for sleep and when he is truly distressed and I need to back off.
I do not lay down with him for the same reason you mentioned--he thinks it's time to play and wants to crawl all over the bed. It works better for me to hold him in my arms on the sofa. I also have soft, relaxing music playing.
It is often working for me to wear him down in the sling--have you tried that? Sometimes he just needs me to go about my own business and stop the intense focus on going to sleep. Then he can stop fighting and relax enough to actually fall asleep. The sling also functions well as kind of a mediator between the two of us. If I find that I'm getting really frustrated, then I know it's time to pull out the sling.
I too have to be really careful not to let my own emotions and frustrations make things worse. I've been working on this for months, and I finally feel like I am able to handle naptime pretty well. I've finally found the balance between taking charge as the parent, and not allowing naptime to become a power struggle.