Flexibility is defined as “the ability of a muscle or muscle groups to lengthen passively through a range of motion”, whereas mobility is the “ability of a joint to move actively through a range of motion”. ... It is not only the muscles stretching over a joint but also how far the joint moves within the joint capsule.
Flexibility is defined as “the ability of a muscle or muscle groups to lengthen <em>passively</em> through a range of motion”, whereas mobility is the “ability of a joint to move <em>actively</em> through a range of motion”.
Explanation:
Keyword is what exactly are you doing. If you're basically stretching your arms without adding any sort of movement, that's flexing, but if you're moving your arms around like doing any sort of thing (like reaching to a cup) then it becomes mobility.
I'm saying cycling because everyone learned how to ride a bike at a young age and even if you don't know how to ride, you can put on training wheels. (lol). Hiking could be another good alternative but in case you get worn out, theres no place to call to get picked up because of bad service.
