Traditional strength training with free weights or weight stack means muscle work against a constant external load. The load in the concentric phase of the movement with traditional strength training needs to be adapted to the angle of the range of motion where the external lever is at the longest. As the length of the external lever varies with the joint angle and the muscle´s ability to develop force is affected by muscle length, the internal lever causes an incomplete activation of muscle motor units throughout the range of motion. Read more here.

With the variable resistance, it enables maximum load throughout the full range of motion in the concentric phase of the movement at each repetition in a set regardless of the internal and external lever and provides a higher activation of motor units. Also, the possibility to add load and move in all three dimensions mimics the soccer sprint for a more specific training stimulus which will most likely help to increase the transfer of power and strength to perform on the soccer field.

With the kBox, you can put the load on your hips or let the harness unload you from the point pressure from the top down allowing the athlete to work harder and do basic heavy lifts like squat variations or lateral squats even with a cast on.

As a soccer coach, you can use the kMeter to limit the intensity, motivate for higher intensity, or follow up in testing for evaluation. With the kBox and the kPulley, you get most of the soccer players’ needs fulfilled regardless if your goal is to increase general or specific strength.