Fill in the Blanks 4ºBil FitnessOnline version Actividad bilingüe by Dpto efsavater 1 creating Continuos Circuit Explosive Interval Voluntary insertion Slow agonist three cardiac tendom strength three Progression training Specificity endurance 1 . Our body has differents types of muscles : , Involuntary and . 2 . The point wherethe muscle attaches to the moving bone is called the . 3 . The muscle doing the work and the movement is called . 4 . twitch fibres create slower contractions and they are ideals for events . 5 . The types of muscular are : Static , and Dynamic . 6 . The four principles of training are : , Overload , and Reversibility . 7 . The main methods that we can use are : , Fartlek , , Weight and training .