DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION
Exercise

DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION

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Triceps
1 video
Workout Center

The dumbbell incline cross body triceps extension is a single-arm isolation exercise performed while lying back on an incline bench, extending the arm from behind the head diagonally across the body. The diagonal path of motion places heavy emphasis on the long head of the triceps, which crosses the shoulder joint and responds well to an overhead extension pattern. Because it's performed one arm at a time, it also helps address strength imbalances between sides. The incline bench supports the back and removes momentum from the lower body, isolating the triceps more effectively than a standing version.

Muscles Targeted

  • Primary: Triceps brachii (long head)
  • Secondary: Triceps brachii (lateral and medial heads)
  • Tertiary: Anterior deltoid, core stabilizers (to prevent excessive arching)

Starting Position

Set an incline bench to roughly 45 degrees and lie back with your feet flat on the floor. Hold a single dumbbell in one hand with a neutral grip and press it to arm's length above the opposite shoulder. Brace the working arm against the bench pad or use your free hand to support the elbow, keeping the upper arm stationary throughout the set.

Execution Steps

  1. Position the dumbbell overhead near the opposite shoulder with your elbow bent and pointing toward the ceiling
  2. Keep your upper arm fixed in place, using only your forearm to move through the range of motion
  3. Lower the dumbbell in a controlled arc down and across your body toward the outside of the opposite shoulder or chest
  4. Feel a stretch in the triceps at the bottom of the movement without letting the elbow flare excessively
  5. Extend your arm back along the same diagonal path to the starting position, squeezing the triceps at the top
  6. Complete all reps on one arm before switching to the other side

Form Cues

  • Pin the upper arm in place: All movement should come from the elbow, not the shoulder
  • Keep the elbow pointed toward the ceiling: Letting it drift outward reduces triceps tension and stresses the shoulder
  • Move only from the elbow: The upper arm stays fixed through the entire rep
  • Control the eccentric lowering phase to maximize the stretch on the long head
  • Keep your back flat against the bench pad, avoiding an arch to compensate for a heavy weight

Common Mistakes

  • Letting the upper arm swing forward: shifts work to the shoulders and reduces triceps isolation; keep the upper arm locked in place.
  • Using too heavy a dumbbell: forces the elbow to flare and shortens the range of motion; drop the weight to keep the diagonal path clean.
  • Arching the lower back off the bench: reduces stability and risks lower-back strain; keep the back flat against the pad.
  • Rushing the eccentric lowering phase: loses the stretch-based stimulus on the long head; lower with control over 2-3 seconds.
  • Not extending fully at the top: shortchanges the contraction; extend the arm fully each rep without locking out aggressively.

Variations

  • Flat bench cross body triceps extension: performed lying on a flat bench, slightly altering the resistance curve
  • Standing cross body triceps extension: a standing variation that increases core and stability demand
  • Cable cross body triceps extension: cable resistance provides constant tension through the range of motion
  • Two-arm overhead triceps extension: a bilateral version using one or two dumbbells, less isolated but allows heavier loading
  • Rope pushdown: an alternate triceps isolation move that doesn't require an incline bench

Tips for Progression

  • Increase weight in small increments once you can complete all reps with a full, controlled range of motion
  • Add a 1-2 second pause at the bottom stretch position to increase difficulty
  • Progress reps into the 12-15 range before increasing load significantly
  • Superset with a compound pressing movement to pre-exhaust or finish off the triceps

Training Notes

Place the dumbbell incline cross body triceps extension near the end of an upper-body or arm-focused session, after compound pressing movements like the bench press or overhead press. It typically works well for 10-12 reps per arm across 3 sets, with 45-60 seconds rest between sets. Perform one arm completely before switching sides to keep tension consistent.

Exercise Details

Body Parts
Triceps
Category
Workout Center

Frequently Asked Questions

How often should I do the DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION?

Because the DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION works triceps, two to three sessions a week is a sensible range for most people. Leave at least a day between sessions that hammer triceps so the tissue can recover and adapt. If you train it harder, do it less often.

Is the DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION suitable for beginners?

The DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION sits at an intermediate level for most lifters. Start light, nail the technique, and only add load once the pattern feels automatic. New to lifting? A coach can check your setup in a single session.

What should I do if the DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION causes pain?

Stop the set right away. A working burn in triceps is fine, but sharp or pinching pain is a signal, not a challenge. Reset your dumbbell, bench setup, drop the weight, and if the pain comes back, talk to a physio or certified trainer before your next session.

How much weight should I use for the DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION?

Pick a load you can move with clean form for every planned rep, where only the last one or two feel genuinely hard. Since this is a pushing movement, keep the bar or handle path steady and avoid bouncing out of the bottom. When form holds across all sets, nudge the load up a little.

Can I modify the DUMBBELL INCLINE CROSS BODY TRICEPS EXTENSION?

Plenty of options exist. You can swap the dumbbell, bench for something similar, shorten the range of motion while you learn the groove, or change your stance to shift the emphasis around triceps. Single-joint moves like this one also work well as a finisher after heavier lifts. Adjust to fit your body, not the other way round.