Shoulders · Machine

Military Development — Machine

Muscles requiredAnterior deltoid · Triceps lateral head · Triceps medial head

Description

Vertical thrust to develop shoulders and core stability.

01 · Setup

Set up the movement

  • Adjust machine supports to stay aligned from start to finish.
  • Feet stable, core braced, pelvis neutral.
  • Chest high, shoulders low at the start.
  • Wrists aligned and elbows under control.
  • Adjust the supports to stay aligned from start to finish.
02 · Execution

Perform the rep

  1. Lower slowly to the controlled range of motion.
  2. Keep the forearms stable and the elbows oriented under the load.
  3. Push vertically without arching your lower back.
Technique cue

Push overhead with locked torso.

Common mistakes
  • excessive lumbar arch
  • elbows that open too much
  • descent too fast
  • hard lock at the top
  • force an range of motion beyond your mobility
Safety notes

Risks of poor execution

  • The guided trajectory reduces lateral instability.
  • A forced range of motion can still overload the joints.

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