text: Chapter 3
  Domains
  The overarching goal of the H2F System is Soldier readiness. This goal is met when
  training in the five domains of H2F is optimized. These domains are physical readiness,
  nutritional readiness, mental readiness, spiritual readiness, and sleep readiness. To
  conduct rigorous, demanding training that inspires Army pride, imbues the Soldier
  ethos, and maximizes common task competence, Soldiers must be physically and
  mentally motivated and engaged.
  PHYSICAL READINESS
  3-1. If the overarching goal of H2F is Soldier readiness, then the overarching physical training goal is
  movement lethality—the ability to physically engage with and destroy the enemy. Movement lethality is the
  ability to apply and sustain the right amount of strength, endurance, and speed to meet the demands of training
  and combat physical tasks. This physical goal is supported by optimal mental function. The goal and the
  function are inseparable, linked together. The ability to tolerate physical duress is a function of mental
  toughness. It is generated by training the critical components of physical readiness and the tasks they support
  (see table 3-1).
  Table 3-1. Physical components and occupational tasks
  Physical Component Occupational Tasks
  Muscular strength Lift, drag, and carry heavy loads
  Muscular endurance Execute sustained bouts of low intensity resistance
  Aerobic endurance Execute sustained bouts of low intensity movement
  Anaerobic endurance Execute short-duration, high intensity movement
  Power Complete short-duration, explosive movements with heavy loads
  3-2. Figure 3-1 on page 3-2 illustrates the prerequisites for movement lethality. Components of fitness,
  energy systems, occupational skills, and physical skills required for movement lethality must be carefully
  combined over time with a Soldier’s structural capabilities. Structural capabilities are the intrinsic capabilities
  that allow a Soldier to perform physically. See table 3-2.
  Table 3-2. Structural capabilities
  Structural Capability Description
  Load tolerance The ability of the skeletal system to bear weight.
  Flexibility The range of motion across single or multiple joints that allows the body to be
  positioned for optimal movement.
  Static balance The ability to maintain a stable position over a base of support.
  Body composition The percentage of lean muscle and other body tissues.
  Bone density The thickness and quality of the bone that provides its strength.