The deep lunge actively stretches the hips, groin, adductors and core muscles for safe and effective speed training. Speed and agility training will increase your performance on the football field and give you the athleticism you need to compete at the next level. Every football player, whether a lineman or defensive back, requires good footwork and that is why we put a huge emphasis on agility ladder drills and mini hurdles. These training tools increase your ability to develop fast twitch muscles. Football Positions that benefit from Speed & Agility Training: Quarterback, Running Back, Wide Receiver, Tight End, Offensive Lineman, Defensive lineman, linebacker, corner back, free safety, strong safety (all defensive backs). Even Kickers, Punters and long snappers.