When you run, you move in just a forward motion. Therefore, running shoes are built with support for that plane of movement. They then have cushioning to allow for shock absorption as well as thicker heels and midsoles. The sole should also have a slight curvature to aid your toe off when running and help speed you up a tad bit! The only flexibility needed in a running shoe is through the toe area.
I've been running in the same pair of asics for years now! They seem to do a great job for me! I also have a pair of flyknits which come under the neutral ride in Nike shoes. This means they have the cushioning required of a running shoe but aren't very supportive around the foot. People with injuries or running styles which include over pronation require a more supportive shoe. So it was time for an upgrade...
To the Nike Lunarglide 5's ...a shoe in the stable ride category and pretty in pink. I featured them in my Sport'n Style Summer Wish List and was lucky enough to win a pair through the Zico App competition :)
Then we move onto training. This includes anything from your aerobics classes to weight lifting. Training exercises differ to running in that they are multi directional. So you don't just move forward...you move backward...side to side...jumping even. A training shoe is designed with all these things in mind including flexibility, lateral support and cushioning. You want your training shoe to allow you to stay agile whilst absorbing shock and providing support.
The latest shoe to hit our wardrobes from Nike are the Free Bionics perfect for use in Nike Training Club classes and such. They are designed for high intensity training and are the closest to barefoot you can get to date!
Oh and then life isn't all training and no play... So here are my choices for when I'm not running or in the gym!