By turning your strength training into high-intensity interval training!

We’ve curated the ultimate HIIT workout that will help you build size and strength in 30 days.

(And don’t be surprised if your overall conditioning improves at the end of this month too!)

muscular man doing chin-ups outdoors to build size and strength

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Once you feel comfortable with the duration, increase it by five minutes (45 minutes max).

Do this workout twice a week with at least two days of rest in between.

Keep reading to learn all about this HIIT workout to build size and strength in 30 days.

man doing barbell front squats at the gym

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And next, don’t missThe Ultimate Muscle-Building Workout Every Man Over 40 Should Try.

Keep your chest high and elbows up and squeezed together.6254a4d1642c605c54bf1cab17d50f1e

Stand shoulder-width apart with your toes slightly out.

Start the movement by sitting backward and spreading your knees apart.

man doing dumbbell bench press at gym

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Descend below parallel while keeping your lower back flat.

At the bottom of the movement, drive through your heels and keep your knees apart.

Keep your chest high and elbows up and squeezed together throughout.

man doing chin-ups outdoors

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Perform as many sets as possible of six reps, keeping in mind your 25-minute timeframe.

Drive the dumbbells upward, keeping your shoulders back.

Drive through your heels as well, keeping your glutes on the bench.

man doing ab wheel rollout core-strengthening exercises for men

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Perform as many sets as possible of six reps, keeping in mind your 25-minute timeframe.

Grab a pullup bar with your palms facing toward you, and start by squeezing your shoulder blades together.

Pull yourself up, and lead with your chest.

Perform as many sets as possible of six reps, keeping in mind your 25-minute timeframe.

Descend as low as it’s possible for you to, then pull yourself back up.

Perform as many sets as possible of six reps, keeping in mind your 25-minute timeframe.