I took up trail running after reading
Born to Run and appreciating how detrimental heel striking is to one's entire body... especially the feet, achilles, knees and back. Now I try to avoid asphalt altogether as it still hurts my feet far more than trail running. I was having so much fun trail running, I decided to enter competitive events recently and subsequently did my research on trail shoes. There are a ton of choices! Bottom line, you don't need much of a shoe, what you need is a comfortable fit. Throw all the expensive gels, anti-pronation garbage, and "foot support" out the window. Running correctly by striking with the lateral or outside region of the forefoot, rolling to the inside, and hardly touching the heel to the ground not only enforces correct foot alignment, it helps to build the soft tissues in the feet. Unless one's feet are already messed up, any kind of built in foot support is counterproductive to building soft tissue in the feet. Even with "messed up" feet, correct running is often more therapeutic than "corrective insoles". Correct running technique demands more of the calf muscles and takes time for proper conditioning. Correct running technique further helps to avoid twisted ankles which will be another price paid when heel striking on a rugged trail.
My advice is to read
Born to Run, confirm correct running technique, and get a shoe with minimal support if any, and get one that conforms to the anatomy of your foot. For my feet, I need a large toe box so my toes and forefoot have plenty of room to expand. The shoe I ended up with is the following Montrail model:
http://www.montrail.com/Men's-Mountain- ... lt,pd.htmlIt is not entirely minimalist, it does have lots of cushion, probably too much. I went for the extra cushion because I developed gout issues when trying to run in five-finger shoes. However, that was partly due to not running correctly, I was landing too much on the ball of my feet instead of "rolling" for the lateral aspect. The problem with too much cushion is the cushion creates friction and until the cushion is well broken in, this friction can create forefoot blister issues if running longer distances with the shoe straight out of the box. Now that my Montrails are well broken in, they are perfect for my feet, but I'll go with less cushion next time around.
Get two pairs of running shoes. Alternate the pairs which is good for both the shoe and the foot. Have fun, trail running beats the tar out of asphalt when it comes to the fun factor!