I exercise 5 days a week at home but when I go for walks outside and up & down stairs my legs are sore the next day. Why?

[Anonymous]

I'm never sore anymore when I work out at home so why do I get very sore when I walk outside?

[SomeRandomGuy89]

Muscle adaptation. You can't always do the same exercises otherwise your progress peaks. You're using your muscles differently when your out walking than when your doing your routine in the home. You're also recruiting a broader range of muscles in all likelihood while doing full body movements in the real world.

You need to change your workout routine. You're body is used to it.

[pascal_climbs]

Probably because you do not train for endurance, but for strength. That is totally different.

[In_Trance]

because you're outta shape