Looking for a "back-to-school" exercise challenge -- something you can actually do (and maybe even enjoy)?

Here are our four favorite fitness goals for beginners, from simplest to most challenging (each one comes with its own training plan):

Start a Walking Program

Run One Mile

Run a 5K (3.1 miles)

Complete a Sprint Triathlon (shorter distances for swimming, biking and running)

And if you'd rather tone a specific body part this autumn, choose one of our new e-books (click to open the PDF):

Tone Your Butt

Get a Flat Stomach

Tone Your Back

Tone Your Arms

Tone Your Thighs