The Army Ranger 12-mile ruck march is one of the toughest physical tests. In this video, I take on the challenge and see how long I can last with a 35-pound pack.

With its combination of cardiovascular conditioning, strength-building and calorie burning, rucking is an ideal fitness ...

It's a special weekend on Cape Cod as people run over 200 miles with a weighted rucksack for veterans and active service ...