5 Day PHAT Workout – Power Hypertrophy Adaptive Training


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About this routine

The PHAT workout routine is a 5 days per week training program. The aim of PHAT is to focus on both power and hypertrophy, and so its structure is divided into two distinct phases:

  • Power Days - The first two days of the routine are the Power Days. In this phase, you are focusing on heavy lifting with fewer reps per set. The goal of this phase is to increase your overall strength and power.
  • Hypertrophy Days - The remaining three days of the routine are the Hypertrophy Days. In this phase, you are lifting lighter weights with a higher number of reps per set. This phase promotes muscle growth.

A typical PHAT workout routine will look like this:

  • Day 1 - Upper Body Power Day
  • Day 2 - Lower Body Power Day
  • Day 3 - Rest
  • Day 4 - Back and Shoulders Hypertrophy Day
  • Day 5 - Lower Body Hypertrophy Day
  • Day 6 - Chest and Arms Hypertrophy Day
  • Day 7 - Rest

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What is PHAT?

The PHAT workout, also known as Power Hypertrophy Adaptive Training, is popular amongst bodybuilders aiming to gain lean muscle mass while enhancing power. In this routine, you'll workout 5 days per week. This allows you to maximize training volume while allowing enough time for rest and recovery.

PHAT combines both powerlifting and bodybuilding workout styles. The first two days are the "Power Days" where you focus on heavy weight lifting with low reps. These days build your power and strength. The remaining three days are the "Hypertrophy Days" where you focus on lower weight with higher reps.

This combination of power and hypertrophy training in the same week is what makes PHAT a unique and effective approach to developing your strength and size.

The original PHAT workout was designed by Dr Layne Norton, a highly respected figure in the fitness and nutrition industries.

Benefits of the PHAT workout routine

  • Increases size and strength - The PHAT workout routine is a great choice you are looking to increase both strength and size. Most other workout routines emphasize one of these over the other. But PHAT combines the two elements for balanced muscle development.
  • Balances intensity and volume - PHAT balances the overall intensity and volume of your workout, which can lead to better results. The 5x5 routine is excellent for strength, but it does not provide enough volume for optimal hypertrophy. And other bodybuilding routines might provide a lot of volume, but lack the intensity needed for strength gains.
  • For advanced lifters - PHAT is an advanced workout routine and is not suitable for beginners. It requires a big time commitment and the intensity of the workouts can be challenging. But, if you are an intermediate or advanced lifter, PHAT can be a way to maximize your muscle growth and strength.

Man performs a tricep pulldown. This exercise is part of the PHAT workout routine.
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Gym Geek’s health and fitness editor.


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