Loop Band Single Arm Tricep Extension

The Loop Band Single Arm Tricep Extension is a unilateral isolation exercise designed to strengthen and tone the back of the arm using a mini resistance band. By working one arm at a time, it helps identify and correct muscle imbalances while effectively targeting the triceps brachii.

How Iridium Helps

Since resistance bands provide variable tension that increases as they stretch, tracking perceived exertion (RPE) is critical for consistent progress. The AI analyzes your RPE data alongside recovery metrics from previous pressing sessions to optimize your volume, ensuring you stimulate the triceps without aggravating the elbow joint. If you experience joint discomfort, the app uses this historical feedback to instantly recommend biomechanically friendly alternatives.

Form Cues

Do
  • Pin your elbow firmly against your side
  • Fully extend the arm to lock out the elbow
  • Squeeze the tricep hard at the bottom
  • Control the band slowly on the way up
  • Keep your wrist neutral throughout the set
Don't
  • Don't let your elbow drift away from your body
  • Don't use momentum to swing the band down
  • Don't shrug your shoulders up towards your ears
  • Don't allow your wrist to curl or extend excessively

Common Mistakes

  • Moving the upper arm during the rep
  • Returning to the start position too quickly
  • Using a band that is too heavy for full range of motion
  • Flaring the elbow out to the side
  • Shortening the rep and not locking out

Muscles Worked

This exercise primarily isolates the lateral and medial heads of the triceps brachii, which are essential for arm extension and definition. The movement also engages the forearms and grip stabilizers as secondary muscles to maintain control of the elastic resistance.

Primary

Triceps Lateral HeadTriceps Medial Head

Secondary

Forearms

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