text: Chapter 7
  7-12. In the H2F performance team, MFTs develop training plans and lead physical training sessions that
  incorporate Running Drills. MFTs teach the running skill in the classroom as well as on the training field.
  THE RUNNING PARADIGM
  7-13. Paragraphs 7-14 through 7-25 describe the paradigm behind the Running Drills. A paradigm describes
  a way of thinking about an issue or problem. It provides a useful way to analyze and understand a problem
  and usually includes common language or terms. The running skill paradigm described in figure 7-2 supports
  the concept that leaders can teach running skill as a technique using drills and exercises.
  Figure 7-2. The running skill paradigm
  7-14. Just like any skill position in a team or individual sport (swimming, baseball, soccer, cycling), any lift
  in the gym, Soldiers develop technique—the applied skill of the movement—over time by purposeful and
  deliberate practice. Movement skills such as switching from rifle to pistol or close quarters combat requires
  a skilled coach as well as repeated practice. High-level skill in running is no different. Running drills and
  exercises aim to progressively build and correct running skill. They build the physical capacity and mental
  awareness of the position of the body while running.
  7-15. Gravity is the arbiter of movement. Although not seen, Soldiers can see and feel its effects. They stay
  at rest because of it and lose balance because of it. All forces on Earth are derivatives of gravity. As a force
  of nature, it cannot be overcome. Gravity is the one force that allows Soldiers to go from standing still to
  moving forward. As a pencil falls from a desk, a rocket arcs towards its target, and a Soldier trips through
  the Sprint-Drag-Carry, gravity is predominant.
  7-16. During running, as the body moves, it rotates around its point of support on the ground—where the
  foot meets the ground. The angle between the body starting position as the foot contacts the ground and the
  new angle of the body as the foot leaves the ground can be measured. The greater the angle, the greater the
  speed of the movement. Using classical geometry and mechanics, this angular velocity can be translated into
  forward or linear velocity in two equations. In the first, v = rω where v is linear velocity, r is the radius of
  rotation (leg length), and ω is the angular velocity of a given rotation. In the second equation,
  𝜃
  𝜔=
  𝑡
  where θ is the angle of deviation of the body from the vertical and t is the time of passing through that angle.
  7-17. Therefore, v = r θ/t. The Soldier’s running speed depends on his or her angle of fall—the greater the
  angle, the greater the speed. Keeping the center of mass over and then moving it ahead of the base of support
  requires maintaining the dominant running position, which requires muscles to be strong enough to maintain
  the body’s position during the fall. Changing support from one foot to the other requires an active pull of the
  foot from the ground to increase the speed of movement through the fall angle. Running Drills increase the
  specific strength required to do this. If the fall angle is greater, so will be the acceleration and subsequent
  speed of the body over the ground. Acceleration is a = g ∙ sin θ, where g is gravity, and sin is sine (ratio of
  the shortest to the longest sides of the angle). A larger angle generates an increase in acceleration. Figure 7-3
  illustrates the body’s translation of angular velocity into horizontal velocity.