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4 Day Workout Split – The Complete Guide 2024

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What is the 4 Day Split?

The four day split workout is a workout plan that involves 4 weekly gym sessions. Each session targets a specific set of muscles. It tries to maximize exertion on the target muscle groups while allowing other muscles to recover on days when they aren’t being used. It’s also worth checking out the 2 Day Workout Split or 3 Day Workout Split if having only 2-3 workouts per week fits your schedule better, or our 5 Day Workout Split if you prefer.

In this article we’ll break down common variations of the 4 day split workout, including sample routines. We’ll also help you figure out if the 4 day split is a good fit for your workout routine.

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Popular 4 Day Split Variations

Upper Lower

The Upper Lower 4 Day Split Workout divides the four workout sessions into 2 days of upper body training and two days of lower body training. Working out half your body each session means you’ll be training a wide range of muscles groups. The idea is to exert one half of your body while the other half rests. Remember rest days are just as important as gym days. Another key benefit is you’ll be training each muscle group 2x a week which has been shown to result in significantly greater muscle growth when compared to just working each muscle group 1x per week (See Bro Split).

Push Pull

The Push Pull split is similar to the Upper Lower Split and provides a lot of the same benefits. Again you’ll alternate targeting half your body in each session. Push days include exercises where you’re pushing (Bench Press, Squat) and generally target the muscles in the front of your body. Pull days include exercises where you’re pulling (Pull Ups, Bent Over Row) and generally target the back of the body.

Push Day Muscle Groups: Chest, shoulders, triceps, quadriceps, and calves
Pull Day Muscle Groups: Entire back, biceps, hamstrings, and obliques

The biggest benefit of a push pull split is that you’re able maximise weekly set count for all your major muscle groups because you’re working them out twice a week. There’s lots of research that shows targeting the same muscle group multiple times per week is optimal in terms of muscle regeneration.

classic bodybuilder bro split 4 day routine

Classic Bodybuilder (Bro Split)

The classic bodybuilder 4 day split (sometimes called the Bro Split) is the meat and potatoes of four-day splits. It involves training a specific isolated muscle group in each workout. It generally splits the sessions into the back, chest, arms, and legs (quads, hamstrings, outer/inner thighs). 

It allows you to focus entirely on a small set of muscles per session and gives a full week of recovery for each muscle group. A major benefit of focusing on a single muscle group per session is you can give priority to weaker muscle groups.

In recent years, there’s been a lot of research done that calls into question the effectiveness of working out a single muscle per workout. Regardless of the controversy, the Classic Bodybuilder split is a tried and true method that countless extremely successful lifters swear by for results.

classic bodybuilder bro split 4 day routine

Is a 4 Day Split Workout for me?

Working out 4 days a week gives you plenty of time in the gym to build a balanced routine that engages all parts of the body. It plays especially well with Upper/Lower and Push/Pull type splits because it gives you a balanced 2 days for each variation. It also gives you a good balance of exertion vs rest days that’s important for avoiding overtraining. 

In a 4 day split, you can get away with shorter sessions than you can in the 3 Day Split, just because you have that extra day to train. Shorter sessions means you can focus more on quality sets, which can suffer if you’re trying to cram too much stuff into a single workout.

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Create your own workout splits with Hevy, and track your progress. Join +2M athletes.

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For Personal Trainers

Personal trainer software to build workout programs for your clients, and track their progress.

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Ready to get started?

Get Hevy for free on iOS and Android.

Conclusion

Working out in a four day split is a great way to get results and bring your workout routine to the next level. Whether you choose an Upper Lower, Push Pull or Classic Bodybuilder split the most important thing for results is consistency. Pick a plan that you enjoy and don’t be afraid to switch it up after a while if you start getting bored. If you feel like tracking your workouts, be sure to check out Hevy!

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2 thoughts on “4 Day Workout Split – The Complete Guide 2024

  1. Nice post! Been using this routine for a while now and enjoying it so far!

    I was wondering, shouldn’t an exercise be added in that has a focus on the lower pecs?

    1. Hey Matt! Yes absolutely, you could add a Decline Bench Press to target the lower chest, or some Cable Chest flies. Best of luck with your training!

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