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Track 4-Day Muscle Building with Gym Log.

4-Day Muscle Building is a 4-day hypertrophy training approach focused on muscle building. Use it as a starting point for organizing and tracking consistent training.

1

Choose your start date

We'll place the program into your Gym Log calendar starting on this date.

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Your existing workouts stay safe.New sessions are added only where there is an open slot.
Gym Log workout library•Track it. Progress. Repeat.