 Progressive overload, a strategy of progressively increasing resistance or repetitions over successive bouts of exercise in order to maintain a high level of effort, is one fundamental principle of training strongly associated with muscular hypertrophy.Across the research literature, a wide variety of resistance exercise training modalities have all been shown to elicit similar hypertrophic responses in muscle tissue.Muscular hypertrophy plays an important role in competitive bodybuilding as well as strength sports like powerlifting, football and Olympic weightlifting.