Patent ID: 8684891

Claim:
An apparatus to selectively increase resistance during athletic training by providing drag, for training a user having a waist and a back, comprising: a belt adjustably worn around the waist of the user; a parachute for providing drag to increase resistance during training, the parachute having a plurality of cords; a case for storing the parachute, the case mounted on the belt and worn on the back of the user, the case having an aperture opposite the user, the aperture providing an access through which the parachute selectively deploys and retracts, the case having a pair of sides tapering toward the aperture, the sides having a pair of ports facing in a direction same as the user, one port on each side, the ports leading to a pair of air channels inside the case, air flowing into the pair of ports caused by a user's forward motion and into the channels forcing the parachute out the aperture once the user selectively opens the parachute, the air flow expanding the parachute and providing drag; and a recoil mechanism inside the case having a pair of mainsprings, the mainsprings attaching to the parachute by the cords, the cords winding the mainsprings when the parachute is selectively opened and the mainsprings retracting the parachute into the case when the parachute is selectively closed, permitting the opening and closing of the parachute without stopping or breaking stride during training.