October 6, 2025

12-Week 3 Day Split Strength Training Program for Advanced Runners: Build Muscle with PPL Split

Hello, I’m Vijune Penikaite, and for over a decade, I’ve had the privilege of guiding individuals through their fitness journeys. My passion lies in empowering people, especially women and men, to discover their inherent strength and power. From my base in the vibrant heart of London, I’ve seen countless transformations, and one truth consistently emerges: strength training is not just about aesthetics; it’s about building a resilient body, a powerful mind, and a foundation for a long, vibrant life. I have personally used this program to train many of my male clients, witnessing incredible transformations.

Today, I want to share a program that embodies this philosophy – a comprehensive 12-week strength training split designed specifically for advanced runners seeking to regain their vitality, build lean muscle, and improve their overall well-being. This isn’t just another workout plan; it’s a blueprint for a stronger, healthier, and more confident you. And the best part? You can easily follow and track your progress with the 12Reps app.

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Why Strength Training is Your Non-Negotiable for Longevity and Running Performance

In our fast-paced world, it’s easy to overlook the profound impact of consistent strength training. For runners, especially those aiming for advanced performance, your body demands resilience and power. Muscle mass can decline by 3% to 5% per decade after the age of 30, and testosterone levels gradually decrease [1]. But here’s the empowering news: you have the power to slow, and even reverse, this decline. Strength training is your most potent weapon.

Longevity Strength Training: This isn’t just a buzzword; it’s a lifestyle. Regular resistance training helps maintain bone density, improves metabolic health, enhances cardiovascular function, and boosts cognitive performance. For runners, it translates to improved running economy, reduced injury risk, and sustained performance over the years [2]. It’s about building a body that not only looks strong but functions optimally for decades to come. It’s about being able to play with your kids, carry groceries with ease, and maintain independence as you age.

Building Muscle for Runners: While the goal isn’t necessarily to become a bodybuilder, building lean muscle is crucial for runners. It provides the power needed for speed, the endurance for long distances, and the stability to prevent injuries. For women, including those aiming to build muscle, it sculpts, tones, and strengthens without necessarily leading to bulk, fostering a powerful and athletic physique. The key is progressive overload – consistently challenging your muscles to adapt and grow.

This program utilises a Push/Pull/Legs (PPL) split, a highly effective method that divides your workouts into muscle groups that work synergistically. This allows for adequate recovery for each muscle group while ensuring high training frequency throughout the week [3].

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Your 12-Week Transformation: A Runner’s Guide

This 12-week program is structured into three distinct phases, each building on the last to ensure continuous progress and adaptation. We’ll start with foundational strength, then introduce more advanced techniques like supersets to maximise muscle growth and endurance. Remember, consistency and proper form are paramount. The 12Reps app will be your best friend throughout this journey, helping you track sets, reps, weights, and rest periods with its built-in stopwatch, just like a dedicated workout tracker app.

The Essentials: Warm-up, Cool-down, and Daily Finisher

Every successful workout begins with a proper warm-up and ends with a cool-down. These are non-negotiable for injury prevention and optimal recovery.

Warm-up (10 minutes before each workout): Start with 10 minutes of light cardio, such as an incline walk on a treadmill or rowing. Follow this with dynamic mobility exercises.

Mobility Stretch

Sets

Reps/Duration

Cat-Cow

2

10 reps

World’s Greatest Stretch

2

5 reps/side

Cool-down (10 minutes after each workout): Finish your session with 10 minutes on the StairMaster or an incline walk on the treadmill to aid recovery and gradually bring your heart rate down.

Daily Finisher (Morning or Evening): To further enhance your core strength, glute activation, and overall fitness, incorporate this quick routine into your daily schedule, either before your morning shower or before bed. These are excellent bodyweight app exercises that require no equipment.

Exercise

Sets

Reps

Push-ups / Knee Press

4

10

Sit-ups

4

10

Calf Raises

4

10

Glute Bridges

4

10

Back Extensions

4

10

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The 12-Week Program: Detailed Phases

This program incorporates a variety of equipment, including kettlebells, dumbbells, TRX, machines, and barbells, ensuring a well-rounded and challenging experience. We’ve included a mix of single- and double-leg exercises to enhance balance, stability, and unilateral strength, all of which are crucial for runners. We’ve avoided overly complex exercises to keep it effective and safe.

Phase 1: Building the Foundation (Weeks 1-4)

In this initial phase, the focus is on mastering form and building foundational strength. We’ll use single sets for 5 exercises per workout, with 4-5 sets each. Remember to choose a weight that allows you to complete the target reps with good form, and gradually increase it as you get stronger (progressive overload).

Day 1: Push (Chest, Shoulders, Triceps)

Exercise

Sets

Reps

Rest

Barbell Bench Press

4-5

8-12

60-90 sec

Dumbbell Shoulder Press

4-5

8-12

60-90 sec

Incline Dumbbell Press

4-5

8-12

60-90 sec

Triceps Pushdown (Machine)

4-5

10-15

60 sec

Lateral Raises (Dumbbell)

4-5

12-15

60 sec

Day 2: Pull (Back, Biceps)

Exercise

Sets

Reps

Rest

Barbell Bent Over Row

4-5

8-12

60-90 sec

Lat Pulldown (Machine)

4-5

8-12

60-90 sec

Seated Cable Row

4-5

10-15

60 sec

Bicep Curls (Dumbbell)

4-5

12-15

60 sec

Face Pulls

4-5

15-20

60 sec

Day 3: Legs & Core (Quads, Hamstrings, Glutes, Abs)

Exercise

Sets

Reps

Rest

Barbell Back Squats

4-5

8-12

60-90 sec

Dumbbell Romanian Deadlifts

4-5

10-12

60-90 sec

Walking Lunges (Dumbbell)

4-5

10-12/leg

60 sec

Single-Leg RDL (Kettlebell)

4-5

8-10/leg

60 sec

Plank

4-5

60 sec

60 sec

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Phase 2: Upping the Ante with Supersets (Weeks 5-8)

Now that you’ve built a solid foundation, we’ll introduce supersets to increase intensity and efficiency. This phase includes 5 main exercises and 4 superset exercises, totalling 8 exercises per workout. You’ll perform four working sets for each exercise, plus one warm-up set, making a total of five sets. Remember to use the 12Reps app stopwatch to monitor your rest periods between supersets and exercises

Here’s your version with only the main exercises and two additional ones for each training day:

Day 1: Push (Chest, Shoulders, Triceps)

Exercise

Sets

Reps

Rest

Incline Barbell Bench Press

4

8-12

60-90 sec

Seated Dumbbell Shoulder Press

4

8-12

60-90 sec

Dumbbell Bench Press

4

8-12

60-90 sec

Overhead Tricep Extension (Dumbbell)

4

12-15

60 sec

Cable Chest Fly

4

12-15

60 sec

Day 2: Pull (Back, Biceps)

Exercise

Sets

Reps

Rest

Pull-ups (or Lat Pulldown)

4

8-12

60-90 sec

Dumbbell Biceps Curl 

4

8-12

60-90 sec

Single Arm Dumbbell Row

4

10-12

60-90 sec

Seated Cable Row

4

10-12

60-90 sec

Dumbbell Reverse Fly

4

12-15

60 sec

Day 3: Legs & Core (Quads, Hamstrings, Glutes, Abs)

Exercise

Sets

Reps

Rest

Barbell Deadlifts

4

6-8

90-120 sec

Bulgarian Split Squats (Dumbbell)

4

10-12/leg

60-90 sec

Glute-Ham Raise (Machine)

4

10-15

60 sec

Dumbbell Walking Lunges

4

12-15/leg

60-90 sec

Hanging Leg Raises

4

15-20

60 sec

strength training app - 12reps app

Phase 3: Maximising Gains (Weeks 9-12)

The final phase continues with supersets, pushing your limits to maximise muscle growth and strength. The intensity is higher, and the focus remains on progressive overload. Continue to use the 12Reps app to log your workouts and ensure you’re consistently challenging yourself

Here’s your clean version with only the main exercises and two added for each training day:

 

Day 1: Push (Chest, Shoulders, Triceps)

 

Exercise

Sets

Reps

Rest

Dumbbell Bench Press

4

6-10

60-90 sec

Arnold Press (Dumbbell)

4

8-12

60-90 sec

Incline Dumbbell Flyes

4

10-12

60 sec

Overhead Tricep Extension (Cable or Dumbbell)

4

12-15

60 sec

Dumbbell Front Raises

4

12-15

60 sec

 

Day 2: Pull (Back, Biceps)

 

Exercise

Sets

Reps

Rest

Weighted Pull-ups

4

6-10

60-90 sec

Pendlay Rows (Barbell)

4

8-12

60-90 sec

Seated Machine Row

4

10-12

60 sec

Lat Pulldown (Wide Grip)

4

10-12

60-90 sec

Dumbbell Hammer Curls

4

12-15

60 sec

 

Day 3: Legs & Core (Quads, Hamstrings, Glutes, Abs)

 

Exercise

Sets

Reps

Rest

Barbell Front Squats

4

6-10

90-120 sec

Single-Leg Romanian Deadlifts (Dumbbell)

4

8-10/leg

60-90 sec

Reverse Hyperextension (Machine)

4

10-15

60 sec

Walking Lunges (Dumbbell)

4

10-12/leg

60-90 sec

Hanging Knee Raises

4

15-20

60 sec

 

strength training app- 12reps app - personalised strength training

Your Journey Starts Now: Download the 12Reps App

This 12-week program is more than just a series of exercises; it’s a commitment to yourself. It’s about embracing the challenge, celebrating small victories, and building a stronger, more resilient you. Remember, consistency is key, and having the right tools can make all the difference.

The 12Reps app is designed to be your ultimate strength training app and weightlifting app companion. With its intuitive interface, you can easily navigate to ‘Build Your Routine,’ select all the exercises from this program, and use the built-in stopwatch to precisely monitor your rest periods. It’s like having a personal trainer in your pocket, guiding you through every set and rep.

Ready to embark on your transformation? Download the 12Reps app today and start your 7-day trial for free. Let’s get you in the best shape of your life!

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References

[1] Harvard Health. (2022, February 1). Building better muscle. https://www.health.harvard.edu/staying-healthy/building-better-muscle [2] Complete Physio. (2024, February 14). The Crucial Role of Strength Training for Runners. https://complete-physio.co.uk/the-crucial-role-of-strength-training-for-runners/ [3] StrengthLog. (2024, January 4). The Best Push Pull Legs Split for Building Muscle. https://www.strengthlog.com/push-pull-legs-split/ [4] Men’s Health. (2024, June 18). An Expert Trainer Reveals How Much Muscle You Can Really Gain in a Month. https://www.menshealth.com/uk/building-muscle/train-smarter/a61152787/how-much-muscle-gain-per-month/ [5] Men’s Health. (2024, November 7). Here’s Exactly How Much Protein You Need. https://www.menshealth.com/nutrition/a32842318/how-much-protein-do-i-need/ [6] Fuel Meals. (2024, August 29). Best Macros to Gain Muscle. https://www.fuelmeals.com/blogs/table-talk/best-macros-to-gain-muscle

Article by Vijune Penikaite, Personal Trainer. Find more at https://www.vijunefitness.co.uk

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The 12reps app is your ultimate fitness companion, crafting tailored workout plans, tracking your progress, and keeping you motivated every step of the way. Whether you’re at home, in the gym, or on the go, our adaptable approach fits seamlessly into your lifestyle — providing the support and guidance you need to crush your goals and stay on track.
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