Weight reduced Robotassisted jump training.

mclau16@student.sdu.dk maklo16@student.sdu.dk

File:Overspeed.jpg The present study examines the use of robots in overspeed training, for improving velocity, power output and reducing impact forces in a jump. The purpose of the study was to enhance novel jump training, by creating programs to RoboTrainer One with different types of weight reducing methods and evaluate the effects in comparison with present overspeed training methods and a control experiment without bodyweight reduction. All methods were tested with three degrees of bodyweight reduction: 10-, 20-, and 30%. The different methods and programs tested in the study are the following:

• Pulleysystem, using weight plates as bodyweight reduction.
• Elastic bands to reduce bodyweight.
• RoboTrainer program Isotonic, programmed to provide a constant bodyweight reduction.
• RoboTrainer program Isoelastic, programmed to imitate the effects of elastic bands.
• RoboTrainer program Concentric Isotonic, programmed to provide a constant bodyweight reduction only in the concentric phase of the jump.