There is also a dangerous phenomenon called involuntary muscle contraction. A strong electrical current can make muscles contract uncontrollably, potentially making it difficult for a person to release the source of electricity. That can increase the duration of exposure and, consequently, the injury. This is why an electrical shock should never be dismissed simply because the person appears fine afterwards. Medical assessment is particularly important if there has been loss of consciousness, breathing difficulty, chest symptoms, abnormal heartbeat, seizures, significant muscle pain or burns.
