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Decline Dumbbell Triceps Extension

PushIsolationDumbbellsBeginner
Decline Dumbbell Triceps Extension — Starting positionDecline Dumbbell Triceps Extension — End position

Muscles worked

Back
Triceps

Instructions

  1. 1Secure your legs at the end of the decline bench and lie down with a dumbbell on each hand on top of your thighs. The palms of your hand will be facing each other.
  2. 2Once you are laying down, move the dumbbells in front of you at shoulder width. The palms of the hands should be facing each other and the arms should be perpendicular to the floor and fully extended. This will be your starting position.
  3. 3As you breathe in and you keep the upper arms stationary (and elbows in), bring the dumbbells down slowly by moving your forearms in a semicircular motion towards you until your thumbs are next to your ears. Breathe in as you perform this portion of the movement.
  4. 4Lift the dumbbells back to the starting position by contracting the triceps and exhaling.
  5. 5Repeat for the recommended amount of repetitions.

table_chartRecommended sets and reps

These ranges vary depending on your training goal — adjust the load accordingly.

GoalSetsRepsRest
boltStrength3–46–82–3 min
fitness_centerHypertrophy3–410–1560 s
timerEndurance2–315–2030–45 s

About Decline Dumbbell Triceps Extension

The decline dumbbell triceps extension is an isolation variation that puts the triceps under a deep stretch thanks to the bench's negative angle. Lying decline with your legs anchored, you lower the dumbbells in an arc toward your ears before pressing them back to full extension. The downward incline keeps constant tension on the triceps throughout the range, especially at the stretched position, making it an excellent choice for targeting the often-neglected long head of the triceps. It's a technical movement that requires keeping the elbows perfectly still and controlling the weight carefully to stay both effective and safe.

check_circleBenefits

  • check_circleDeeper triceps stretch thanks to the decline angle
  • check_circleEspecially targets the long head of the triceps
  • check_circleConstant tension throughout the full range of motion

lightbulbExecution tips

  • lightbulbKeep your elbows fixed and tucked in for the whole set
  • lightbulbLower the dumbbells under control until you feel a good stretch
  • lightbulbLock out at the top without snapping the elbows
  • lightbulbUse a moderate load to preserve good technique

warningCommon mistakes

  • warningLetting the elbows flare outward
  • warningLowering too fast without control
  • warningUsing the shoulders to compensate for too heavy a load
  • warningNot anchoring the legs properly on the decline bench

helpFrequently asked questions

Why use a decline bench instead of a flat one?expand_more

The decline angle deepens the triceps stretch at the bottom, which further stimulates the long head.

What weight should I use?expand_more

Stay light to moderate — this is a technical movement where control matters more than load.

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