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Power + Size – 4-Day Upper/Lower (PHUL)

Strength and muscle in one plan: two heavy power days (3-5 reps) and two size days (8-15 reps) with drop sets, failure sets and an arm superset.

Goal: Muscle GainLevel: AdvancedEquipment: Barbell، Dumbbells، Cables، Machine، Bench، Pull-Up Bar4 days/week~60 min/session8 weeks

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Who is this plan for?

Power + Size (often called PHUL, power hypertrophy upper lower) gives you two kinds of training every week. The power days build strength with heavy compound lifts in the 3-5 rep range. The size days build muscle with moderate weights, more reps and intensity techniques.

Power days stick to the basics (bench press, rows, overhead press, pull-ups, squats and deadlifts) with long rest and no techniques, so every heavy set is done fresh. Size days switch to dumbbells, cables and machines in the 8-15 range, where each muscle gets a drop set or a set to failure and the arms get a superset.

Each muscle is trained twice a week, once heavy and once for volume, which suits lifters who want to get stronger without giving up size. Add weight to the power lifts whenever you hit the top of the rep range on every set.

A good week is Monday Upper Power, Tuesday Lower Power, Thursday Upper Size, Friday Lower Size.

The full 4-day plan: exercises, sets and reps

Day 1 – Upper Power — Upper Body

ExerciseSets × RepsRest
Barbell Bench Press4 × 3-5180s
Barbell Row4 × 3-5180s
Barbell Overhead Press3 × 5-6150s
Pull-Up3 × 5-8150s
Barbell Curl2 × 6-890s
Skull Crusher2 × 6-890s

Day 2 – Lower Power — Lower Body

ExerciseSets × RepsRest
Barbell Squat4 × 3-5180s
Barbell Deadlift3 × 3-5210s
Machine Leg Press3 × 8150s
Machine Seated Leg Curl3 × 6-890s
Smith Machine Calf Raise4 × 860s

Day 3 – Upper Size — Upper Body

ExerciseSets × RepsRest
Dumbbell Incline Press3 × 8-1290s
Cable Seated Row3 × 10-1290s
Cable Crossover3 × 12-15 · drop set on the last set60s
Cable Lat Pulldown3 × 10-12 · last set to failure75s
Dumbbell Incline Curl3 × 12 · superset A60s
Cable Rope Pushdown3 × 12 · superset A60s
Dumbbell Lateral Raise3 × 15 · last set to failure60s

Day 4 – Lower Size — Lower Body

ExerciseSets × RepsRest
Barbell Front Squat3 × 8-10150s
Romanian Deadlift3 × 10120s
Dumbbell Bulgarian Split Squat3 × 10 per leg90s
Machine Leg Extension3 × 15 · drop set on the last set60s
Machine Prone Leg Curl3 × 12 · last set to failure60s
Machine Seated Calf Raise4 × 1545s

Frequently asked questions

How many days a week is the Power + Size 4-Day Upper/Lower plan, and how long are the workouts?

The Power + Size 4-Day Upper/Lower plan is 4 days a week, with sessions of about 60 minutes, over 8 weeks.

What equipment do I need for the Power + Size 4-Day Upper/Lower plan?

The Power + Size 4-Day Upper/Lower plan uses a barbell, dumbbells, a cable machine, gym machines, a bench and pull-up bar.

Is the Power + Size 4-Day Upper/Lower plan good for beginners?

The Power + Size 4-Day Upper/Lower plan is an advanced plan for experienced lifters. If you are new to training, start with a beginner plan first.

Is the Power + Size 4-Day Upper/Lower plan free?

Yes. The full plan is free to read here and to follow in the StayActive app, with no subscription and no ads.

Is PHUL good for building muscle?

Yes. Training each muscle twice a week with a mix of heavy and moderate rep ranges is one of the best-supported approaches for intermediate and advanced lifters who want both strength and size.

What does "last set to failure" mean?

On that exercise, do your normal sets, then on the final set keep going until you cannot complete another rep with good form. It only appears on machine, cable and isolation work, where failing a rep is safe. Never take heavy squats, deadlifts or bench presses to failure.

How do drop sets work in the app?

When you finish the last set of an exercise marked "Drop set", the tracker adds a drop: reduce the weight by about 25% and keep going straight away with no rest. Log the drop like any other set.

Can I swap the order of the days?

Keep power before size each week if you can, and avoid putting the two lower days back to back. Monday, Tuesday, Thursday, Friday works for most people.

Safety notes

Power days are heavy: warm up with several building sets and keep every rep crisp. Leave one rep in reserve on the 3-5 rep sets; never grind a heavy squat or deadlift. Techniques are only on the size days, on machines, cables and dumbbells.

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