If I were that child I'd appreciate some human rights and respect for my choice.
There's a balanced tho surely?
Human rights?! Absolutely you need to know your DC. If they truly hate the outdoors / exercise, you need to find alternatives to long cycles & walks.
But you can't just say, grand, we'll stay at home all day
So it can be shorter activities, being outside in the garden, kicking football in the park. Especially in these times, it's important they get out & be active, in some way.
I love long walks, running & the 3 hour cycle sounds great. My kids broadly do too. They are sporty & like being outside.
But they don't always want to do it, so I have to balance it a bit. I'm a single parent, so I do take my own needs into account. I want a long walk on occasion, so they have to go with it; picnics, treat built in, screen / movie time when they get back.
I think it's so important that kids are regularly encouraged to be active outdoors. And that encouragement may have to be a bit directive.
When they get to be teens, I consider it still important. More for connection than anything. Then it needs to be a discussion & communication / expectation is key.
For OP, I think the soreness of the finger has to be taken into account & possible a new plan formulated. Still get out in some way tho.