Originally Posted by
vinfix
Stretching is an important component of a well rounded exercise program. I, too, have a background in martial arts, was an instructor, and also certified as a personal trainer and specialist in MA conditioning a few years ago.
Cycling is great exercise in some ways (cardio, endurance), but it's not well rounded (upper body strength, range of motion). I find it reduces leg flexibility, as well.
I find it reduces neck, hip and lower back flexibility quite a bit. Especially hips. It's the lack of movement, I think. The movements on a bike are very limited and the body - hips especially- is pretty much locked in the same position all the time. Yea, I know we stand up every once in a while, but not all that much.
For me, the combination of sitting all day at work and the position on the bike cause me to need to work on my hip and back flexibility quite a bit. I also find that I need to walk with good posture as much as possible during the day and do at least one "fitness" walk (I hate running - so I do vigorous hill walking) at least once a week to get better upright flexibility and work those muscles. Again, cycling does nothing for that. It is, however, my favorite sport!