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:
Exposure tovertical vibrations in the 5-10 Hz range generally causes resonance in the thoracic-abdominal system, at 20-30Hz in the head-neck-shoulder system, and at 60-90 Hz in the eyeball. When vibrations are attenuated in thebody, its energy is absorbed by the tissue and organs. The muscles are important in this respect. Vibrationleads to both voluntary and involuntary contractions of muscles, and can cause local muscle fatigue,particularly when the vibration is at the resonant-frequency level.