PHAT

What is PHAT?

PHAT - Power Hypertrophy Adaptive Training - is Dr. Layne Norton’s five-day program, born from his own career competing at a high level in both natural bodybuilding and powerlifting. It is the maximalist take on powerbuilding: heavy strength work and serious bodybuilding volume in the same week, every week.

Where PHUL splits four days between the two goals, PHAT commits five - two power days that drive the big lifts, and three hypertrophy days that flood each region with volume.

The five days

The week opens with Day 1 upper power and Day 2 lower power - bench, rows, squats and deadlift variations in the 3–5 rep range, plus heavier accessory work. After a rest day, the hypertrophy block begins: Day 4 back and shoulders, Day 5 legs, Day 6 chest and arms, all built on 8–20 rep work with shorter rests.

The signature detail is the speed work that opens each hypertrophy day: several fast, explosive sets of that region’s main power movement at roughly 65–70% of your power-day weight. It keeps the strength skill sharp on volume days and adds practice on the big lifts without adding much fatigue.

Managing the volume

Make no mistake: PHAT is one of the highest-volume templates in common use, and Norton himself advises easing into it - trimming a set or two from most exercises in the first weeks and adding them back as your work capacity adapts. Sleep and food are not optional extras here.

A deload every 6–12 weeks is part of the design. If bar speed drops, joints ache and the hypertrophy days stop being productive, that is your signal - take the light week rather than grinding through.

Who it’s for

PHAT is for experienced intermediates and advanced lifters with good recovery, five days to train, and the appetite for long sessions - especially physique-focused lifters who refuse to let their big-three numbers slide.

It is emphatically not a beginner program, and it is a poor fit during a deep cut or a high-stress season of life; the volume that makes it work is exactly what makes it unforgiving when recovery is compromised.

Strengths & trade-offs

Strengths: a proven blueprint for pursuing strength and size simultaneously, high frequency (every muscle twice a week), and the speed work is a genuinely clever way to keep lifting skill sharp amid bodybuilding volume.

Trade-offs: the sessions are long and the weekly workload is enormous - many lifters simply cannot recover from it as written. It rewards ruthless exercise-selection discipline and honest deloading, and punishes ego in equal measure.

How to run it

Start with the reduced-volume version of each day, keep the speed sets genuinely fast and crisp, and add sets only when the current workload stops being challenging. Deload on schedule, not when you break.

The spreadsheet below lays out all five days; copy it in Google Sheets, trim it to your current work capacity, and grow into it.

The spreadsheet

Browse the full program below, or open it in Google Sheets to make your own copy and plug in your numbers.

Spreadsheet via LiftVault. If the preview doesn’t load, use “Open in Google Sheets”.

Equipment

This is a barbell program - you don’t need much, but a few pieces make it run smoothly.

Lifting Belt

Gives your core something to brace against, adding stability and lower-back support on heavy squats and deadlifts.

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Wrist Wraps

Keep the wrist stacked under the bar on heavy bench and overhead pressing, so the joint doesn’t bend back under load.

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Knee Sleeves

Add warmth and a little support to the knees, plus a small rebound out of the bottom of the squat.

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Lifting Straps

Secure your grip so heavy pulling and deadlift volume isn’t cut short by your hands giving out first.

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Learn the lifts

New to any of the movements in this program? Our lift guides break down technique, cues and the common mistakes to avoid.