Post collegiate #decathletes deca_dev and coachmatthunter do some staggered stance 'squats' on the #kBox4 from go_exxentric following a hard acceleration development speed session. The starting position of the exercise closely resembles the first steps of sprint acceleration and the #flywheel technology of the kBox provides #isoinertial resistance that overloads the physical capacities associated with acceleration. Although the kBox is largely known for its ability to create an #eccentric overload, the device is also great for developing the type of explosive concentric power that is so important for sprint acceleration. Because the device provides isoinertial resistance, the resistance experienced by the athlete changes at any instant proportional to the force applied. In more simplistic terms, the more force the athlete puts in to the movement the more resistance to that movement they will experience. This is not the case for traditional mass based loading (like free weights) and pro...