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Triceps Extension Machine demonstration
Exercise library

Triceps Extension Machine

The triceps extension machine isolates the back of the upper arm with a guided path, making it easy to train the triceps hard without worrying about balance.

MachineArmsBeginner
Equipment
Machine
Focus
Arms
Level
Beginner
Suggested sets
3–4 sets of 10–15 reps.
Muscles worked
TricepsShoulders

How to do it

  1. 1Adjust the seat so the handles start just above and slightly behind your head.
  2. 2Sit tall with your back supported and grip the handles firmly.
  3. 3Keep your elbows pointed forward and extend your arms until they are nearly straight.
  4. 4Squeeze your triceps hard at the top without locking out aggressively.
  5. 5Lower the handles back under control to the stretched position and repeat.

Tips & tricks

  • Keep your upper arms mostly still so the elbows do the work.
  • Use a full range of motion from a deep stretch to a strong squeeze.
  • Brace your abs lightly so your ribs do not flare as the weight gets heavier.

Common mistakes

  • Letting the elbows drift wide and turning the rep into a shoulder movement.
  • Using momentum to slam the handles up instead of extending smoothly.
  • Cutting the range short and never letting the triceps lengthen.

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