By Will Duru, BSc (Hons) Sport and Exercise Science
As a personal trainer with over a decade of experience in strength training and recovery, I’ve seen countless clients transform their bodies and their lives. One of the most effective programs I’ve designed is a 4-day strength training split that combines push, pull, and leg days with targeted core work and interval cardio. This program is not just about lifting weights; it’s about building a sustainable habit, improving your overall health, and achieving significant fat loss.
I want to share the story of my client, Ed. Ed is a 37-year-old man who, like many of us, let his health slide due to a busy work schedule in the city and the demands of a young family. He had a history of being active, playing rugby in his teens, but the long hours and lack of time for the gym led to inconsistent training and weight gain, especially during the COVID-19 lockdown. When Ed came to me, he was motivated to get back in shape, lose the 20kg of body fat he had gained, and build a consistent gym habit. We designed a 4-day push/pull/legs and core/interval cardio program that did just that.
This program is designed for motivated individuals like Ed who can commit to four training days a week, with three rest days. It’s a 12-week program that will get you in the best shape of your life by focusing on the fundamentals of strength training and interval cardio, which I firmly believe is the most effective combination for losing body fat and building muscle.
Why This Program Works: The Power of Strength Training and Interval Cardio
Strength training is the cornerstone of this program. It’s not just about building bigger muscles; it’s about increasing your metabolic rate, which means you burn more calories even at rest. The push/pull/legs split is a highly efficient way to structure your workouts, allowing you to train all your major muscle groups twice a week. This increased frequency, compared to a traditional “bro split” where you train each muscle group once a week, doubles your training volume and leads to faster results.
We also incorporate interval cardio, which has been shown to be incredibly effective for fat loss. This involves short bursts of high-intensity exercise followed by brief recovery periods. This type of training not only burns a significant number of calories during the workout but also elevates your metabolism for hours afterward. We’ll use a variety of equipment for this, including the treadmill, running outside, the Wattbike, or the StairMaster. For Ed, we also incorporated 45 minutes of boxing, hitting the heavy bag, which is a fantastic full-body workout.
Nutrition: The Fuel for Your Transformation
It’s important to remember that you can’t out-train a bad diet. To achieve the kind of results Ed did, you need to pay close attention to your nutrition. This means increasing your intake of lean protein, healthy fats, and complex carbohydrates. We’ll help you work out the ideal ratios of protein, fat, and carbs per kilogram of your body weight. To make this easier, I recommend using a tool like MyFitnessPal to monitor your intake.
The 16-Week Program
This program is divided into four phases, each lasting four weeks. Each workout begins with a 10-minute warm-up, such as an incline walk on the treadmill or 10 minutes of rowing, followed by mobility stretches. Each workout ends with a 10-minute cool-down on the StairMaster or an incline walk on the treadmill, followed by a core finisher.
Warm-Up (10 minutes)
Exercise | Duration/Reps | Notes |
Incline Walk (Treadmill) or Rowing Machine | 10 minutes | Moderate pace to elevate heart rate |
Mobility Stretches (5 minutes)
Stretch | Duration | Notes |
World’s Greatest Stretch | 30 seconds each side | Hip flexor, hamstring, and thoracic mobility |
Cat-Cow | 10 reps | Spinal mobility |
Hamstring Stretch | 30 seconds each leg | Focus on feeling the stretch in the back of the leg |
Core Finisher (After Each Workout)
Exercise | Sets | Duration/Reps | Rest |
Plank | 4 | 45 seconds | 30 seconds |
Flutter Kicks | 4 | 45 seconds | 30 seconds |
Decline Sit-Ups | 4 | 10 reps | 30 seconds |
Cool-Down (10 minutes)
Exercise | Duration | Notes |
StairMaster or Incline Walk (Treadmill) | 10 minutes | Low intensity to bring heart rate down |
Phase 1 (Weeks 1-4): Building the Foundation
In Phase 1, we focus on building a solid foundation with 5 exercises per workout, 3-4 sets each, including 1 warm-up set for each exercise. The goal here is to get comfortable with the movements and establish proper form.
Day 1: Push (Chest, Shoulders, Triceps)
Exercise | Sets | Reps | Weight | Rest |
Flat Dumbbell Bench Press | 1 warm-up + 3 working | 12, 10, 8 | Progressive | 90 seconds |
Incline Dumbbell Press | 1 warm-up + 3 working | 12, 10, 8 | Progressive | 90 seconds |
Dumbbell Lateral Raise | 1 warm-up + 3 working | 12, 12, 12 | Moderate | 60 seconds |
Seated Dumbbell Shoulder Press | 1 warm-up + 3 working | 10, 10, 10 | Progressive | 90 seconds |
Tricep Rope Pushdown (Cable Machine) | 1 warm-up + 3 working | 12, 12, 12 | Moderate | 60 seconds |
Day 2: Pull (Back, Biceps)
Exercise | Sets | Reps | Weight | Rest |
Lat Pulldown (Machine) | 1 warm-up + 3 working | 12, 10, 8 | Progressive | 90 seconds |
Seated Cable Row | 1 warm-up + 3 working | 12, 10, 8 | Progressive | 90 seconds |
Single-Arm Dumbbell Row | 1 warm-up + 3 working | 10, 10, 10 each arm | Progressive | 60 seconds |
Dumbbell Bicep Curl | 1 warm-up + 3 working | 12, 12, 12 | Moderate | 60 seconds |
Face Pulls (Cable Machine) | 1 warm-up + 3 working | 15, 15, 15 | Light | 60 seconds |
Day 3: Legs (Quads, Hamstrings, Glutes)
Exercise | Sets | Reps | Weight | Rest |
Goblet Squat (Kettlebell) | 1 warm-up + 3 working | 12, 10, 10 | Progressive | 90 seconds |
Romanian Deadlift (Dumbbells) | 1 warm-up + 3 working | 10, 10, 10 | Progressive | 90 seconds |
Walking Lunges (Dumbbells) | 1 warm-up + 3 working | 10 each leg | Moderate | 60 seconds |
Glute Bridge (Bodyweight) | 1 warm-up + 3 working | 15, 15, 15 | Bodyweight | 60 seconds |
Leg Press (Machine) | 1 warm-up + 3 working | 12, 10, 8 | Progressive | 90 seconds |
Day 4: Functional Legs & Core
Exercise | Sets | Reps | Weight | Rest |
Sledge Push | 1 warm-up + 3 working | 20 meters | Moderate | 90 seconds |
Sledge Pull with TRX | 1 warm-up + 3 working | 20 meters | Moderate | 90 seconds |
Box Jumps | 1 warm-up + 3 working | 10, 10, 10 | Bodyweight | 90 seconds |
Kettlebell Swings | 1 warm-up + 3 working | 15, 15, 15 | Moderate | 60 seconds |
TRX Single-Leg Squat | 1 warm-up + 3 working | 8 each leg | Bodyweight | 60 seconds |
Cardio Day (Day 5): Zone 3 Steady-State
Exercise | Duration | Notes |
Running (Outside or Treadmill) or Wattbike or StairMaster | 30-45 minutes | Maintain a steady pace where you can hold a conversation but are slightly breathless |
Phase 2 (Weeks 5-8): Building Strength
In Phase 2, we increase the volume to 4 sets per exercise and start to add more weight. The focus shifts to building strength while maintaining good form.
Day 1: Push (Chest, Shoulders, Triceps)
Exercise | Sets | Reps | Weight | Rest |
Barbell Bench Press | 1 warm-up + 4 working | 10, 8, 6, 6 | Progressive | 2 minutes |
Incline Dumbbell Flyes | 1 warm-up + 4 working | 12, 10, 10, 10 | Moderate | 90 seconds |
Cable Crossover | 1 warm-up + 4 working | 12, 12, 12, 12 | Moderate | 60 seconds |
Dumbbell Shoulder Press | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 90 seconds |
Dips (Assisted if needed) | 1 warm-up + 4 working | 10, 8, 8, 8 | Bodyweight/Assisted | 90 seconds |
Day 2: Pull (Back, Biceps)
Exercise | Sets | Reps | Weight | Rest |
Trap Bar Deadlift | 1 warm-up + 4 working | 8, 6, 6, 6 | Progressive | 2 minutes |
Wide-Grip Lat Pulldown | 1 warm-up + 4 working | 10, 10, 10, 10 | Progressive | 90 seconds |
T-Bar Row (Machine) | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 90 seconds |
Hammer Curl (Dumbbells) | 1 warm-up + 4 working | 12, 10, 10, 10 | Moderate | 60 seconds |
Reverse Flyes (Dumbbells) | 1 warm-up + 4 working | 15, 12, 12, 12 | Light | 60 seconds |
Day 3: Legs (Quads, Hamstrings, Glutes)
Exercise | Sets | Reps | Weight | Rest |
Barbell Back Squat | 1 warm-up + 4 working | 10, 8, 6, 6 | Progressive | 2 minutes |
Leg Curl (Machine) | 1 warm-up + 4 working | 12, 10, 10, 10 | Progressive | 90 seconds |
Bulgarian Split Squat (Dumbbells) | 1 warm-up + 4 working | 10 each leg | Progressive | 90 seconds |
Hip Thrust (Barbell) | 1 warm-up + 4 working | 12, 10, 10, 10 | Progressive | 90 seconds |
Leg Extension (Machine) | 1 warm-up + 4 working | 15, 12, 12, 12 | Moderate | 60 seconds |
Day 4: Functional Legs & Core
Exercise | Sets | Reps | Weight | Rest |
Sledge Push | 1 warm-up + 4 working | 30 meters | Moderate-Heavy | 2 minutes |
Sledge Pull with TRX | 1 warm-up + 4 working | 30 meters | Moderate-Heavy | 2 minutes |
Box Jumps | 1 warm-up + 4 working | 12, 10, 10, 10 | Bodyweight | 90 seconds |
Kettlebell Goblet Squat | 1 warm-up + 4 working | 12, 12, 12, 12 | Moderate | 90 seconds |
TRX Hamstring Curl | 1 warm-up + 4 working | 12, 10, 10, 10 | Bodyweight | 60 seconds |
Interval Cardio Day (Day 5): Boxing or HIIT
Exercise | Duration | Notes |
Boxing (Heavy Bag) | 45 minutes | 3-minute rounds with 1-minute rest |
OR HIIT on Treadmill/Wattbike | 20-30 minutes | 30 seconds sprint, 90 seconds recovery |
Phase 3 (Weeks 9-12): Maximising Hypertrophy
Phase 3 is where we really push for muscle growth. We maintain 4 sets per exercise and focus on time under tension and controlled movements.
Day 1: Push (Chest, Shoulders, Triceps)
Exercise | Sets | Reps | Weight | Rest |
Incline Barbell Press | 1 warm-up + 4 working | 10, 8, 8, 6 | Progressive | 2 minutes |
Flat Dumbbell Press | 1 warm-up + 4 working | 12, 10, 10, 10 | Progressive | 90 seconds |
Pec Deck Machine | 1 warm-up + 4 working | 15, 12, 12, 12 | Moderate | 60 seconds |
Arnold Press (Dumbbells) | 1 warm-up + 4 working | 10, 10, 10, 10 | Moderate | 90 seconds |
Overhead Tricep Extension (Cable) | 1 warm-up + 4 working | 12, 12, 12, 12 | Moderate | 60 seconds |
Day 2: Pull (Back, Biceps)
Exercise | Sets | Reps | Weight | Rest |
Trap Bar Deadlift | 1 warm-up + 4 working | 8, 6, 6, 6 | Progressive | 2 minutes |
Pull-Ups (Assisted if needed) | 1 warm-up + 4 working | 8, 8, 8, 8 | Bodyweight/Assisted | 2 minutes |
Single-Arm Cable Row | 1 warm-up + 4 working | 12 each arm | Progressive | 90 seconds |
Incline Dumbbell Curl | 1 warm-up + 4 working | 12, 10, 10, 10 | Moderate | 60 seconds |
Straight-Arm Pulldown (Cable) | 1 warm-up + 4 working | 15, 12, 12, 12 | Light | 60 seconds |
Day 3: Legs (Quads, Hamstrings, Glutes)
Exercise | Sets | Reps | Weight | Rest |
Front Squat (Barbell) | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 2 minutes |
Romanian Deadlift (Barbell) | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 2 minutes |
Walking Lunges (Dumbbells) | 1 warm-up + 4 working | 12 each leg | Progressive | 90 seconds |
Cable Pull-Through | 1 warm-up + 4 working | 15, 12, 12, 12 | Moderate | 60 seconds |
Seated Calf Raise (Machine) | 1 warm-up + 4 working | 15, 15, 15, 15 | Moderate | 60 seconds |
Day 4: Functional Legs & Core
Exercise | Sets | Reps | Weight | Rest |
Sledge Push | 1 warm-up + 4 working | 40 meters | Heavy | 2 minutes |
Sledge Pull with TRX | 1 warm-up + 4 working | 40 meters | Heavy | 2 minutes |
Depth Jumps | 1 warm-up + 4 working | 8, 8, 8, 8 | Bodyweight | 2 minutes |
Kettlebell Single-Leg Deadlift | 1 warm-up + 4 working | 10 each leg | Moderate | 90 seconds |
TRX Pike | 1 warm-up + 4 working | 12, 10, 10, 10 | Bodyweight | 60 seconds |
Cardio Day (Day 5): Mixed Cardio
Exercise | Duration | Notes |
15 minutes Wattbike (Steady-State) + 15 minutes StairMaster (Steady-State) | 30 minutes total | Maintain moderate intensity |
Phase 4 (Weeks 13-16): Peak Performance
In the final phase, we push to 4-5 sets per exercise and focus on maximising strength and muscle definition.
Day 1: Push (Chest, Shoulders, Triceps)
Exercise | Sets | Reps | Weight | Rest |
Flat Barbell Bench Press | 1 warm-up + 5 working | 8, 6, 6, 4, 4 | Progressive | 2-3 minutes |
Incline Dumbbell Press | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 2 minutes |
Cable Flyes (High to Low) | 1 warm-up + 4 working | 12, 12, 12, 12 | Moderate | 60 seconds |
Seated Dumbbell Shoulder Press | 1 warm-up + 5 working | 10, 8, 6, 6, 6 | Progressive | 2 minutes |
Close-Grip Bench Press | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 90 seconds |
Day 2: Pull (Back, Biceps)
Exercise | Sets | Reps | Weight | Rest |
Trap Bar Deadlift | 1 warm-up + 5 working | 6, 5, 5, 4, 4 | Progressive | 2-3 minutes |
Weighted Pull-Ups | 1 warm-up + 4 working | 8, 6, 6, 6 | Progressive | 2 minutes |
Bent-Over Barbell Row | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 2 minutes |
Barbell Curl | 1 warm-up + 4 working | 10, 8, 8, 8 | Progressive | 90 seconds |
Cable Face Pulls | 1 warm-up + 4 working | 15, 15, 15, 15 | Moderate | 60 seconds |
Day 3: Legs (Quads, Hamstrings, Glutes)
Exercise | Sets | Reps | Weight | Rest |
Barbell Back Squat | 1 warm-up + 5 working | 8, 6, 6, 4, 4 | Progressive | 2-3 minutes |
Leg Press | 1 warm-up + 4 working | 12, 10, 10, 10 | Progressive | 2 minutes |
Bulgarian Split Squat (Dumbbells) | 1 warm-up + 4 working | 10 each leg | Progressive | 90 seconds |
Barbell Hip Thrust | 1 warm-up + 5 working | 12, 10, 10, 8, 8 | Progressive | 2 minutes |
Hamstring Curl (Machine) | 1 warm-up + 4 working | 12, 12, 12, 12 | Moderate | 60 seconds |
Day 4: Functional Legs & Core
Exercise | Sets | Reps | Weight | Rest |
Sledge Push | 1 warm-up + 5 working | 50 meters | Heavy | 2-3 minutes |
Sledge Pull with TRX | 1 warm-up + 5 working | 50 meters | Heavy | 2-3 minutes |
Box Jumps | 1 warm-up + 4 working | 10, 10, 10, 10 | Bodyweight | 2 minutes |
Kettlebell Swings | 1 warm-up + 4 working | 20, 20, 20, 20 | Heavy | 90 seconds |
TRX Single-Leg Squat | 1 warm-up + 4 working | 10 each leg | Bodyweight | 60 seconds |
Interval Cardio Day (Day 5): High-Intensity Boxing
Exercise | Duration | Notes |
Boxing (Heavy Bag) | 45 minutes | 3-minute rounds with 1-minute rest, focus on power and speed |
Tracking Your Progress with the 12Reps App
One of the most important aspects of any training program is tracking your progress. This is where the 12Reps app comes in. The app is a free strength training and workout tracker that allows you to build your routine by navigating to ‘Build Your Routine’ and selecting all the exercises from this workout program.
The app includes a stopwatch feature that helps you monitor your rest periods, which is crucial for maintaining the intensity of your workouts. You can save your workouts, plan ahead with friends, and track your progress over time. This makes it easy to see how much weight you’re lifting, how many reps you’re completing, and how you’re improving week by week. Download the 12Reps app for free and start your muscle building journey today.
Ed’s Results and Your Potential
Ed committed to this program for 12 weeks, training four times a week and following the nutrition guidelines we set out. He lost 20kg of body fat, built significant muscle, and most importantly, developed a consistent gym habit that has stuck with him. He’s now in the best shape of his life and feels more confident and energised than ever.
This program can work for you, too. Whether you’re a busy professional like Ed, or someone who just wants to get back in shape, this 4-day split is designed to fit into your life and deliver real results. It’s not about spending hours in the gym every day; it’s about training smart, staying consistent, and fueling your body properly.
Final Thoughts
The combination of push/pull/legs training and interval cardio is one of the most effective ways to lose body fat and build muscle. By training each muscle group twice a week, you’re maximising your training volume while still allowing for adequate recovery. The functional leg day adds an extra dimension to your training, improving your athleticism and overall fitness.
Remember, the key to success is consistency. Stick to the program, track your progress with the 12Reps app, and pay attention to your nutrition. If you do that, you’ll see results.
If you want to learn more about my approach to training and recovery, visit just12reps.com.
About the Author:
Will Duru holds a BSc (Hons) in Sport and Exercise Science and is an award-winning personal trainer with over 10 years of experience in strength training and optimising recovery. He specialises in helping busy professionals build sustainable fitness habits and achieve their body composition goals.