Training with an injury is always a challenge. Keep in mind the main tenet here: Fitness has to stand upon a base of health. Your focus must be on getting your wrists healthy. Training will be compromised but doesn’t have to cease. Hill sprints will be a good way to keep legs strength and probably have better transfer to mountain sports than machines in a gym. But you can mix in some strength machines like leg press for sure. You’ll have to be creative and understand that you have to compromise. You can’t go on the way you have or you won’t heal. Being able to run/hike etc will help you keep base fitness and just changing the strength routine to stuff you can do without your wrists is not a huge compromise. We regularly see much more impactful injuries that we can work around so I suspect your come out fine provided your wrists heal.