Analysis of Grip Strength on Visual Reaction and its Application

In the current study, we adopted a combination of sEMG (surface electromyography) and self-manufactured digital hand grip interfaced with software in order to analyze agility, power, and endurance of grip strength in response to visual reactions. In the results of agility assessment which measures time takes to generate grip strength against visual reaction, it was shown to be 351.7 ± 55.06 ms while an electromechanical delay in the generation of grip strength was demonstrated upon the activation of EMG (p < 0.05). Secondly, the power of grip strength was expressed as time takes to reach up to 90% of rising time and acceleration work; as results, the acceleration work was 40.47 ± 13.44 kg/s. Lastly, in the endurance exercise, the medial frequencies of EMG signal of the initiation of exercise and the last one second were 79.42 ± 24.76 Hz and 67.63 ± 20.65 Hz, respectively which was decreased indicating that subjects in the study experienced muscle fatigue during the endurance exercise.