Redefining Strength Explains 3 Rest-Pause Techniques for Building Muscle

| Sep 11, 2026 / 3 min read

Building muscle can become increasingly difficult the longer someone trains, particularly for experienced lifters who have already adapted to their usual training methods. Redefining Strength founder Cori Lefkowith says one way to continue creating a strong stimulus is to use rest-pause training strategically.

In a recent YouTube video, Lefkowith broke down three ways to use rest-pause techniques to increase quality training volume, improve strength endurance and support muscle growth without simply adding more weight.

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Traditional Rest-Pause

The first method is the most straightforward. When you reach the point where you cannot complete another quality repetition, rest for 15 to 30 seconds before continuing the set.

Lefkowith highlights unilateral exercises such as lunges as a useful example. If one side reaches seven reps while the stronger side can perform 10, a short rest allows the weaker side to complete the remaining three.

The technique can also help when grip strength limits an exercise before the target muscles do.

“It is a great way to use rest-pause technique to move more weight, but also to correct any imbalances,” Lefkowith explained.

Cluster Sets

Cluster sets break a larger set into smaller groups of high-quality repetitions, usually two or three reps at a time, with 15 to 30 seconds of rest between mini-sets.

Lefkowith uses pull-ups as an example. Someone working toward six repetitions could perform two reps, rest, perform two more, rest again, then complete the final two.

The approach allows lifters to practice difficult movements without allowing fatigue to destroy their technique.

“We want to practice the way we want to perform,” Lefkowith said.

She recommends keeping the total cluster to no more than 10 repetitions before taking a longer 60- to 120-second break.

The 10-7-3-1 Technique

The final strategy is designed to combine hypertrophy-focused loading with strength endurance. Lifters perform 10 reps, rest 10 seconds, perform seven reps, rest seven seconds, perform three reps, rest three seconds, then complete one final rep.

That produces 21 total repetitions using a weight that would normally allow only around 10 to 12 consecutive reps.

Lefkowith describes it as a way to accumulate more quality volume with heavier loads while pushing the muscles beyond their normal limit.

How to Use Rest-Pause Training

Lefkowith recommends using the 10-7-3-1 method for one major compound lift at the beginning of a workout. Cluster sets can be used when developing a specific skill, while traditional rest-pause can help complete quality repetitions or address imbalances.

Her broader point is that rest-pause training should have a purpose rather than simply being added to every exercise.

Quality Work Over More Work

For experienced lifters, making progress often requires finding better ways to challenge the muscles rather than endlessly adding exercises or volume. Lefkowith’s three rest-pause strategies provide different ways to extend productive sets while maintaining control over the training stimulus.

As she puts it, “This is the way to get that quality work.”

About the Author

Jeremiah Oliva

Jeremiah Oliva is a writer passionate about fitness, sports, and active living. He has experience in songwriting and managing content and social media for online radio and magazine platforms.

He covers HYROX, CrossFit®, and competitive fitness, with a focus on performance, mindset, and athlete development.

Outside of writing, Jeremiah trains in boxing, cycles, explores the outdoors with his kids, and plays the guitar.

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Cluster Sets cori lefkowith redefining strength rest pause technique rest pause training