 |  | From Wendy Bumgardner, your About Fitness Editor | | My husband and I love watching American Ninja Warrior, although I don’t think I could make it through even the first obstacle. But if you are inspired to join in an obstacle race or mud run, Margaret has 35 tips to improve your performance. READ NOW | |  | |  | | | So, you really want to hone your ninja and warrior skills? Obstacle course gyms are springing up to cash in on the popularity, but they are not all alike. Laura has what to look for and the questions you should ask the staff before you join. READ NOW | |  | You can stop short of full-on ninja warrioring but get big benefits from these fun and functional exercises. These compound exercises with dynamic movement will work more muscle groups at once. You can pack more of a workout into less time. READ NOW | |  | This is my type of training. No ninjas, no warriors, just long, long mileage. If you registered for an autumn marathon or half marathon, you should be deep into mileage-building weeks and wondering how this is all going to turn out. Christine has the answers for 8 common questions about marathon training. Including – why am I gaining weight during marathon training? READ NOW | |  | | | An every-morning rundown of the day in history, with headlines and trends produced by your pals at About.com. Click here to sign up! It's free (of course) and we think you'll like it! | | |  | Want More From About.com? | | | | Sign up for more free newsletters on your favorite topics You are receiving this newsletter because you subscribed to the About.com Parenting newsletter. If you wish to unsubscribe, please click here. If you would like to unsubscribe from all newsletters sent from About.com, please send an email to optout@about.com with "Unsubscribe" as the subject line. Contact Information: 1500 Broadway, 6th Floor New York, NY, 10036 Privacy Policy © 2014 About.com | |  |  | |