This is why Marine boot camp, without a doubt, is the most rigorous and challenging, both physically and mentally, than basic training programs of all the other military branches. New recruits are also required to study and memorize an extreme amount of information, including: 1  Basic drill and ceremony.  USMC Rank.
There are basically 2 ways to increase your stride length: 1  Run upwards on some type of an inclined surface, or. 2  Run with some type of resistance behind you. (i.e., parachutes, flexbands, sleds, etc.)
As you continue to add mileage to your weekly schedule, continue to add doubles as necessary to keep your average run distance from creeping above 10 miles. So, for example, if you run 100 miles a week you should run at least 10 times.