The Secret to Faster Muscle Growth: Eccentric Overload

Updated on Feb 17, 2025

Want to accelerate muscle growth and build strength faster? The key lies in eccentric overload—a proven method that focuses on the "negative" phase of movement, where muscles lengthen under tension. It's available in VOLTRA I via our Weight Training Mode.

Why Eccentric Overload?

Eccentric training is one of the most effective ways to stimulate muscle growth. Research shows it can:

Stimulate 30% more muscle growth compared to traditional lifting.
Increase strength by allowing you to handle heavier loads.
Reduce injury risk by strengthening tendons and connective tissues.
Break through plateaus for faster progress in your workouts.

So if you're looking to maximize your gains, the science is clear: You should be adding Eccentric training into your workout.

Traditional Methods and Their Drawbacks

Eccentric overload is typically performed using:

Spotter-assisted training: A partner helps lift the weight, and you lower it slowly.
Heavy negatives: Using heavier weights and focusing on the lowering phase.
Specialized machines: Equipment designed to isolate eccentric movements.

While effective, these methods come with significant challenges:

Risk of injury: Handling heavier weights or relying on spotters can be dangerous.
High costs: Specialized equipment can be expensive and inaccessible.
Inconvenience: Requires a partner or access to specific machines, limiting flexibility.

Easier than Ever Before with VOLTRA I

Traditionally, achieving Eccentric required spotters, heavy negatives, or costly specialized machines—options that often come with safety risks, high costs, and logistical challenges.

With VOLTRA I, all of those barriers are eliminated. Our portable powerhouse brings eccentric overload to your fingertips via a simple addition in Weight Training Mode, making it safer, more convenient, and accessible than ever before.

VOLTRA I UI: Enabling Eccentric in Weight Training Mode

No need for bulky equipment or relying on others—just precise, efficient training designed for real results.

How to Train with Eccentric on the VOLTRA I

On your VOLTRA I unit, head to Settings > General > Weight Training > Tap the small icon in the center of the bottom-right corner. You'll then see an Eccentric option, tap it, and set your desired value.

An example: If your set resistance is 45 lbs and the eccentric boost is 7 lbs, the total force during the eccentric phase will reach 52 lbs. It's a direct addition.

You'll also be able to configure your max resistance and adjustable eccentric output in User Mode in Settings. With our latest beta (1.6), Unlimited Eccentric is active - and fully configurable here, too!