Marcelo breaks up the monotony of routine warm-ups by incorporating sprints and high intensity interval training the moment he senses a hint of contagious ennui beginning to grow in his advanced class: Pattern-breaking is an important tool in one's training arsenal, as it can allow for an effective dose of oftentimes much-needed spontaneity in an exercise program to help mix-up the regularities and complacencies inherent to the skill development of movement patterns. Feelings of doubt or frustration can become the very seeds of inspiration that can fuel one's training so that it pushes them towards new horizons if they simply just make the choice to do so and outright refuse to readily succumb to easily construed excuses.