Courses in a typical bachelor's degree program in education include student assessment methods, instructional strategies, multiculturalism and human development.
Electrolyte imbalance is the most common cause of leg vibration which is usually caused by dehydration.Drink plenty of fluids & take rehydration salt drinks.Stop the activity that caused the cramp.Gently stretch and massage the cramping muscle.If still the symptoms persists then you need to get tested for:
Signs and symptoms such as increased pain with Valsalva maneuvers, straight-leg-raising symptoms, the tendency for the pain to radiate into the buttock or leg, the presence of weakness or sensory deficit, and bowel or bladder urgency or incontinence are associated with neurologic causes of low back pain.