One-Arm Tricep Pushdown

Muscles Worked

How to Perform

1. 1

   Attach a single handle to a high cable pulley and stand facing the machine with feet shoulder-width apart. Grasp the handle with one hand using an overhand grip.

2. 2

   Position your working elbow at your side with your upper arm perpendicular to the floor. Start with your forearm at roughly 90 degrees or slightly higher.

3. 3

   Keep your non-working hand on your hip or holding the machine for stability. Engage your core and maintain an upright torso position throughout the movement.

4. 4

   Exhale as you push the handle down by extending your elbow until your arm is fully straightened. Focus on using only your tricep to move the weight, keeping your upper arm completely still.

5. 5

   Pause briefly at full extension and squeeze your tricep hard to maximize muscle contraction. Your arm should be straight but not locked out.

6. 6

   Inhale as you slowly return the handle to the starting position with control, resisting the weight on the way up. Maintain tension on the tricep throughout the eccentric phase.

7. 7

   Complete all reps on one arm before switching to the other side. Match the number of repetitions on both arms to ensure balanced development.

Common Mistakes

• Moving the Upper Arm

  Allowing your elbow to drift forward or backward during the movement reduces tricep isolation and brings other muscles into play. Your upper arm should remain stationary and vertical throughout the entire exercise.

• Leaning Into the Movement

  Using body weight or leaning forward to push the weight down defeats the purpose of unilateral training and can cause lower back strain. Stand upright with your core engaged and let your tricep do all the work.

• Using Too Much Weight

  Loading too much weight forces you to compromise form and engage other muscle groups for assistance. Start lighter than you would with two-arm pushdowns to maintain strict isolation and perfect technique.

• Rushing Through Repetitions

  Performing reps too quickly reduces time under tension and limits muscle growth stimulus. Use a controlled tempo with emphasis on the eccentric (lifting) phase for maximum tricep development.

Pro Tips

• Start with Your Weaker Arm

  Always begin your set with your non-dominant or weaker arm, then match that number of reps with your stronger arm. This approach ensures balanced development and prevents your dominant side from getting even stronger.

• Focus on the Squeeze

  Contract your tricep as hard as possible at full extension and hold for 1-2 seconds before releasing. This peak contraction technique enhances muscle fiber recruitment and accelerates hypertrophy, especially in the lateral head.

• Use Different Attachments

  Rotate between various single-arm attachments like D-handles, rope ends, or straight bars to target the triceps from slightly different angles. Each attachment provides a unique stimulus and prevents adaptation plateaus.

• Position Your Body Strategically

  Stand slightly offset from the cable machine rather than directly in front of it, allowing your working arm to move in a more natural path. This positioning reduces shoulder strain and improves overall comfort during the exercise.

Variations

Diversify your tricep training with these single-arm pushdown variations that target the muscles from unique angles.

• One-Arm Reverse Grip Pushdown

  Use an underhand grip to shift emphasis to the medial head of the tricep while also engaging the forearms for comprehensive arm development.

• One-Arm Rope Pushdown

  Grip a single rope end and add pronation at the bottom by rotating your hand outward for enhanced lateral head activation and a deeper stretch.

• Cross-Body Single-Arm Pushdown

  Position yourself perpendicular to the cable and push across your body to engage additional core stabilizers and work the tricep through a different movement plane.

• Kneeling One-Arm Pushdown

  Perform the exercise from a kneeling position to eliminate any potential body English and force stricter form with complete tricep isolation.

Alternative Exercises

These unilateral tricep exercises provide similar benefits for isolating and strengthening each arm independently.

• Single-Arm Overhead Cable Extension

  Targets the long head of the tricep with the arm overhead, providing a deep stretch and different stimulus than standard pushdowns.

• One-Arm Dumbbell Kickback

  A classic unilateral exercise performed bent over that emphasizes the lateral and long heads with peak contraction at full extension.

• Single-Arm Overhead Dumbbell Extension

  Hold a dumbbell overhead with one arm and lower it behind your head for maximum long head engagement and shoulder mobility work.

• Bench Dip (Single-Leg Elevated)

  Elevate one leg during bench dips to create asymmetrical loading that challenges each tricep differently, improving unilateral strength and stability.