How to run the PHAT program

Who Is This Program For?

PHAT is for experienced intermediate and advanced lifters who want to be strong and muscular at the same time. Norton's core idea: getting stronger in low rep ranges raises the weights you can handle for high reps, which increases the total growth stimulus over time.

The program focuses on:

• Strength: two power days with compound lifts in the 3-5 rep range
• Size: three hypertrophy days with 50-75% more volume than the power days
• Explosiveness: speed work at 65-70% of your power-day weights on every hypertrophy day
• Frequency: each muscle group is trained twice per week

If you can already handle serious workloads and want a bridge between powerlifting and bodybuilding, this is it.

Program Structure

Weekly Schedule

Day 1 - Upper Body Power

Day 2 - Lower Body Power

Day 4 - Back and Shoulders Hypertrophy

Day 5 - Lower Body Hypertrophy

Day 6 - Chest and Arms Hypertrophy

Power Days Explained

The two power days are built around compound movements for 3-5 reps with heavy loads and full recovery between sets. Move the weight with maximal intent. Norton recommends rotating your main power exercises every 2-3 weeks (for example, flat dumbbell press to flat barbell press) to keep progressing without burning out on one movement.

Speed Work Explained

Each hypertrophy day starts with speed work: 6 sets of 3 reps (Norton allows 6-8 sets) using 65-70% of the weight you use for 3-5 reps on your power day, with the concentric (lifting) phase performed as explosively as possible.

Example: If you squat 140 kg (310 lbs) for 3-5 reps on power day, your speed squat weight is roughly 91-98 kg (200-215 lbs).

The bar should move fast on every rep. If bar speed slows, the weight is too heavy.

Training to Failure

Do not train to absolute failure during the first weeks. Once adapted to the workload, only the final 1-2 sets of an exercise should approach failure. Everything else stops with reps in reserve.

Progression: How Weights Increase

PHAT uses double progression inside every rep range.

• Start each exercise at the bottom of its rep range with a weight you can control
• Add reps from session to session
• When all sets hit the top of the range, increase the weight by 2.5 kg (5 lbs) on upper body lifts or 5 kg (10 lbs) on lower body lifts, and restart at the bottom of the range

On the power lifts, when you complete all sets of 5, add weight and drop back to sets of 3. Speed work weights update automatically since they are a percentage of your power-day weight.

Get Your Form Right First

Everything below assumes your form is already solid. Finding your working weight, adding weight, chasing reps, all of it only works if you can perform the lift correctly. While your form is not locked in, that is your only job. Make good form the goal of every set, not the weight on the bar. Drilling the movement with an empty bar beats loading plates onto a lift you cannot control yet.

To learn, don't hesitate to search Google and YouTube (there is a lot of good free material) and record yourself from the side to compare against a proper demonstration. In general, good form means a full controlled range of motion, a braced neutral spine, no bouncing or momentum, a consistent setup every rep, and ending the set when technique breaks down rather than grinding sloppy reps.

Finding Your Starting Weights

For the power lifts:

1. Warm up, then work up in small jumps until you find a weight where 5 reps is challenging but leaves 1-2 reps in reserve
2. Use that as your starting power weight
3. Your speed work weight is 65-70% of that number

For hypertrophy exercises, pick a weight you can lift for the bottom of the rep range with 1-2 reps in reserve. It's better to start too light than too heavy; PHAT's volume punishes overreaching quickly.

Warming Up

Before the first heavy lift of each day, perform 3-4 warm-up sets with increasing weight:

Speed work needs only 1-2 light ramp-up sets since the loads are submaximal. Accessory exercises generally don't need dedicated warm-up sets.

Rest Times

Norton emphasizes complete recovery between heavy power sets. Do not rush them. On hypertrophy days, keep rests shorter to maintain density.

Deload Protocol

PHAT has a built-in deload rule: every 6-12 weeks, take 1-3 weeks using 60-70% of your normal weights while keeping the same movements. Treat it as active recovery, not a challenge.

Outside scheduled deloads, if a lift stalls for three consecutive sessions:

• Check sleep, calories, and protein (1.5-2.2 g per kg of bodyweight, 0.7-1 g per lb)
• Rotate the exercise for a close variation, or reduce the weight by 10% and rebuild through the double progression

Program Duration

Run PHAT in blocks of 12 weeks (12 weeks at 5 sessions per week, totaling 60 workouts), then take a deload week before starting the next block.

Why 12 weeks?

• Matches Norton's 6-12 week deload window
• Long enough to rotate power movements several times and measure real strength gains
• A natural point to reassess exercise selection and volume

Access the Original Program

If you would like to read the original program article:

PHAT: Power Hypertrophy Adaptive Training on Biolayne