While watching the Super Bowl this past Sunday -- or any football game, for that matter -- did you happen to notice the explosive power many running backs possess? Even when there are guys trying to drag them to the ground, they are sometimes still able to forge ahead. To build this kind of strength, many football players are employing a now popular functional training technique involving the use of resistance tubing.

To properly perform one of the more popular resistance tubing exercises, you will need the help of another person. That individual will stand behind you, holding onto the handles attached to the tubing. The good news for them is that they will also get a pretty good bicep and leg workout when trying to stop your forward progress.

Start by placing the tubing across your midsection, just above your belt line. Then, sprint 15 feet with your knees up high and your arms pumping as your partner attempts to pull you back. Do this for several sets and then switch positions with your partner.

While performing this exercise may not land you a contract with an NFL team, it will work well to help you build your explosive speed and strength, in addition to increasing your overall stamina.