Summary
Jeff Cavaliere of AthleanX presents a single cable or resistance band exercise that trains both the biceps and triceps in one fluid movement. The exercise is adapted from throwing athlete drills used with quarterbacks and pitchers, emphasizing the connection between athletic movement patterns and effective muscle building. The move incorporates a bicep curl transitioning into a tricep extension through rotational movement, with significant core activation throughout.
Key Points
- One exercise, two muscle groups: The movement trains both biceps and triceps within a single rep, making it an efficient arm workout finisher
- Athletic origin: The exercise is derived from drills used with throwing athletes (quarterbacks, pitchers) to reinforce how rotation and core involvement drive upper body power
- Rotation is the key mechanism: After the initial curl, rotating the body and driving the elbow forward shifts the load from the biceps to the triceps
- Eccentric loading on both muscles: The movement produces eccentric bicep contraction on the way back and eccentric tricep contraction during the lowering phase, maximizing muscle stimulus
- Core is actively involved: Rotation through the movement engages the core, mimicking the mechanics of athletic throwing patterns
- Equipment flexibility: Can be performed at a cable machine (cable set high) or replicated at home using a resistance band anchored to any sturdy structure
Exercise Details
Target Muscles
- Primary: Biceps, Triceps
- Secondary: Core (rotational stabilizers)
Proper Form Cues
- Set the cable or anchor point up high, positioning yourself away from it as if preparing a throwing motion
- Begin with a bicep curl, pulling the handle toward the body
- Rotate the torso and drive the elbow forward through the movement
- Once facing forward, perform a tricep extension to complete the rep
- Return slowly through both phases — slow eccentric on the triceps lowering, then slow eccentric on the biceps return
- Maintain tension in both directions throughout the movement
Common Mistakes to Avoid
- Losing tension in the band or cable at any point during the movement
- Skipping the rotational component — the twist is what shifts emphasis between muscle groups and engages the core
- Rushing the eccentric portions, which reduces both muscle stimulus and the core training benefit
Sets/Reps Recommendations
- No specific sets or reps were mentioned in the transcript; the exercise is presented as a workout finisher