The cross body triceps extension with resistance bands is a one-arm isolation exercise performed with a band anchored high to one side, extending the elbow down across the body to train the triceps. Unlike a two-hand pushdown, the band pulls diagonally from the opposite shoulder, so the forearm travels across the torso and the long head of the triceps stays under stretch at the top. The band also gets tighter as the arm straightens, so lockout is the hardest point of the rep. Home lifters use it late in an arm or push session as a finisher.
What Muscles Does the Cross Body Triceps Extensions with Resistance Bands Work?
- Primary: Triceps brachii (long and lateral heads)
- Secondary: Anconeus
- Tertiary: Obliques, rectus abdominis, posterior deltoid (elbow position)
How Do You Set Up for the Cross Body Triceps Extensions with Resistance Bands?
Anchor a band above head height on a door anchor or rack upright. Stand side-on with the anchor on your left, feet shoulder-width apart. Grip the free end with your right hand, palm facing down, and take one step away from the anchor so the band is taut with your right hand at your left shoulder. Pin your right elbow against your ribs, brace your trunk and square your shoulders to the front.
How Do You Perform the Cross Body Triceps Extensions with Resistance Bands?
- Set your right elbow at your ribs with the forearm folded across your chest and your hand at the left shoulder.
- Extend your forearm down and across your body, driving the hand toward the outside of your right hip.
- Straighten the elbow fully with your knuckles beside your right thigh and the band at its tightest, which shows the range is complete.
- Hold for one count, squeezing the back of the arm while the elbow stays fixed at your ribs.
- Bend the elbow over two counts, letting the hand travel back up across your chest against the band.
- Return your hand to the left shoulder with the band still taut, then repeat, switching arms after the set.
What Are the Key Form Cues?
- Elbow nailed to the ribs: only the forearm moves, so if the elbow drifts forward, the shoulder is doing triceps work.
- Finish outside the hip: aim the knuckles past your thigh rather than straight down, so the forearm follows the band's line.
- Keep your shoulders square to the front while the band tries to twist you toward the anchor.
- Feel the stretch across the back of the arm at the top before each extension.
- Straighten the elbow completely, since the band is heaviest exactly where the lockout happens.
What Are the Most Common Mistakes?
- Using a band that is too heavy: the elbow drifts forward and the shoulder presses the hand down; drop a band thickness until the elbow stays put.
- Standing too close to the anchor: the band is slack for the first half of the range and the triceps only work at lockout; step out until there is tension at the shoulder.
- Rotating the torso with the arm: the obliques help the hand travel and the elbow loses its fixed point; keep your chest facing forward.
- Letting the wrist bend under the band: the load pulls the hand back and the forearm flexors tire before the triceps; keep the wrist straight and the palm down.
- Letting the band snap the hand back up: the return skips the lengthening half of the rep; take two counts to fold the arm.
What Are the Best Cross Body Triceps Extensions with Resistance Bands Variations?
- Kneeling cross body band extension: kneeling shortens the band and lowers the tension, for lighter bands or starting out.
- Double band cross body extension: two bands stacked on the anchor raise the load without a longer step.
- Underhand cross body band extension: palm up shifts emphasis toward the medial head.
- Two-arm crossed band pushdown: both hands cross the body at once, doubling the volume per set.
- Cross-Cable Triceps Extension: the same crossed line on two high pulleys with weight set on the stack.
How Do You Progress the Cross Body Triceps Extensions with Resistance Bands?
- Move up one band thickness, or take one more step from the anchor, once you complete every set at full lockout with the elbow fixed.
- Work from 12 to 20 reps per arm at a fixed band before changing it.
- Add a fourth set once three sets no longer leave the triceps fatigued.
- Slow the return to three counts, or hold the lockout for two counts, when a heavier band is not available.
How Should You Program the Cross Body Triceps Extensions with Resistance Bands?
Place the cross body triceps extension with resistance bands at the end of an arm or push session, after your pressing and any dips. Train it two to three times a week for 3 to 4 sets of 12 to 20 reps per arm with 30 to 60 seconds of rest. Pair it with an overheadtricepsextension so the long head is also loaded with the arm raised.
