External torque as a factor to modify load in abdominal curl-up exercises

Abstract

Study aim: the aim of our study was to evaluate electromyography (EMG) activity in exercises where the load to the muscles is determined by the external torque. In a part of the exercises, we changed the value of the external force, while in the other we modified the length of the lever arm at which the force was applied.

Keywords

• emg
• external torque
• prevention of lbp