A high-intensity & low-volume approach to weight training.

Why Heavy Duty?

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Time Effective Workouts

Designed for intensity and brevity, our program is perfect for those on a tight schedule. Achieve significant strength and muscle gains with high-intensity, short-duration workouts—no need for hours in the gym.

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Maximized Muscle Growth

Heavy Duty training pushes your muscles to their limits with controlled, intense exercises and proper recovery. This approach ensures thorough activation and optimal growth of each muscle group.

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Is This For Natural Bodybuilders?

Heavy Duty training is ideal for natural bodybuilders as it maximizes muscle stimulation through intense, infrequent workouts that align with the body's natural growth and recovery capabilities, eliminating the need for artificial enhancers.

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1 Year Transformation

Buy yourself more time

Invest in yourself with our High Intensity training method. Not only will you unlock unprecedented muscle growth and strength, but you'll also free up valuable time—just 45-60 minutes a day to transform your body and surpass your limits. Embrace the change that reshapes your body and enriches your life, giving you more time for what matters most.

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The Colorado Experiment

Arthur Jones did a test called the Colorado Experiment to see if High Intensity Training works for building muscles.

Casey Viator, the first guy in the test, gained 63 pounds of muscle in just 28 days. Jones, who also joined the test, gained 15 pounds in 22 days.

Viator, who used to be Mr. America, hadn't exercised for two years before the test. This was a challenge to the usual way of doing lots of exercise.

The results showed that in only 28 days, with just 12 short, intense workouts (each under 30 minutes), people gained more than 60 pounds of muscle.

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Let our customers speak for us

I am few months in and I am seeing great results so far. Started at 175lbs with a little stubborn fat. I am currently 180lbs lean & building muscle by the week. Recovery is key!!

Justin M. Verified Buyer

The fat loss segment is too good & the nutritional regiment has changed my life. I've always been strong but with a little bit of fat but this has made me progess with ease.

Luc R. Verified Buyer