| Popis: |
The Simple Reaction Time (SRT) consists in a response to a stimulus. It can be used to characterize the stages of motor control, which are: stimulus identification, response selection, and execution of movement. Slow reaction times can indicate the possibility of a neuromotor disability. Thus, several studies employ the measurement of SRT to assess the performance of subjects. In this context, this study, based in a single case, developed a protocol using wrist extension movement as the response to a visual stimulus. The different SRTs were measured using electromyography (EMG), a button, and a gyroscope. These measurements allowed to estimate the time interval between the distinct types of motor response. These results showed the possibility to identify the stages of motor control, which obey the following sequence: first, the electromyographic activity response, then, the start of the movement, and, finally, the conclusion of the movement. Therefore, this protocol can be used to help clinicians in the diagnosis and evaluation of diseases affecting the brain and muscles. |
