Best Training Splits for Strength and Muscle Growth

When training volume is matched, full-body and split routines produce similar gains in strength and muscle growth. The best training split is therefore the one that fits your schedule, experience, recovery needs, and broader fitness goals.

What Is a Training Split?

A training split organizes exercises into a weekly plan by muscle group, movement pattern, or whole-body focus. This structure helps you track progress and train toward a specific goal, such as greater strength or larger muscles.

Common splits include:

• Chest, back, shoulders, arms, legs, and abs
• Upper body and lower body
• Chest and triceps, back and biceps, shoulders, and legs
• Push, pull, and legs
• Push, pull, hinge, and squat
• Full body

How to Choose the Right Split

Start with Your Available Training Time

Your weekly schedule sets a practical limit. A five-day body-part split may leave too little time for each muscle group if you train only three days per week. New lifters may also benefit from spreading smaller amounts of work across several days instead of concentrating a full session on one area.

Consider Your Other Performance Goals

Strength and muscle growth should fit alongside the rest of your training. For example, a demanding running schedule may make a four- or five-day weight routine harder to recover from. Choose a split that leaves enough energy for both resistance training and your other activities.

Think About Experience and Recovery

Your training history affects how much work you can handle in one session. Beginners can start with shorter, more focused sessions, while experienced lifters may prefer organizing larger training volumes into specific days. Whichever format you select, recovery remains part of the equation.

What Does the Research Say?

Full-Body and Split Training Can Perform Similarly

A 2021 study compared four weekly sessions of full-body and split training in 67 untrained young men over eight weeks. The two programs produced similar improvements in one-repetition-max bench press and Smith machine squat strength, along with comparable muscle-thickness changes in the biceps, triceps, and quadriceps.

The result applied to untrained participants during an eight-week period. The study did not monitor nutrition and measured hypertrophy in only a limited number of muscle sites.

Training Two or Three Times Weekly Produced Similar Results

A 2019 study compared muscle-group training twice or three times per week in 36 trained young men. After ten weeks with equal training volume, both schedules achieved similar increases in strength and muscle thickness. The authors noted limitations including a small sample, short duration, and a specific participant group.

Broader Evidence Supports Either Format

A 2024 systematic review and meta-analysis examined 14 studies comparing split and full-body routines. Participants included women and men with varied training backgrounds, while the studies assessed strength through one-repetition maximums and hypertrophy through several measurement methods.

The review found strong evidence that split and full-body training can deliver similar strength and muscle-growth outcomes when volume is equal. It suggested choosing the format according to personal preferences and goals beyond those two outcomes.

Which Training Split Is Best?

Neither full-body training nor a body-part split has a universal advantage for strength and hypertrophy when volume is equal. The studies did not test every possible arrangement, but most common splits can generally be placed into one of these two categories.

Choose a training split using three main criteria:

1. Schedule: Pick a format you can follow consistently.
2. Experience: Match session length and organization to your training level.
3. Overall goals: Account for recovery needs and any other sports or activities.

The most useful split is not always the most popular one. It is the plan that supports consistent training, adequate recovery, and progress toward your goals.