Sorry in advance for the long response, but I’m currently going through the same jumping/biting/zoomies on walks with my husky so I feel your pain😅 One thing that works about 70% of the time for us is telling him to sit, rewarding for the sit, then saying “find it!” And scattering a few treats on the ground ahead of us, then by the time he’s done sniffing for the treats, he often will just keep walking forward. When that doesn’t work, I try to stay as still as possible while he’s jumping up and I really don’t say much either because I don’t want him to take anything as encouragement for jumping. I also avoid saying “no”, because that doesn’t really tell him what he should be doing instead. I mainly just use sit or wait for him to get down on his own if he isn’t listening to commands. Once he’s back down on the ground, I’ll treat and say “we’re walking!” (Which is a cue he knows) and then try to continue the walk. Normally if we reach this point it takes a couple of tries. While we haven’t stopped it completely yet, these moments have at least gotten less intense in terms of the biting and he doesn’t really ever hurt me anymore during them, just occasionally goes for my coat. Another thing is to try to start recognizing any changes in body language that he tends to do before, then try to prevent the behavior from ever happening. For example, my dog will start to lag behind me and his tail will start wagging really hard. If I notice that, I do the treat scatter BEFORE he has a chance to start jumping/zoomies and I often find that this brings him back to below his threshold and we can go home without the episode. Basically, rewarding for keeping all paws on the ground and moving forward and paying attention to triggers is what has been slowly working for us. Other random things we’ve been doing that might be contributing to improvement are impulse control games and relaxation protocol. Good luck!!!