November 14, 2025

The Ultimate 2-Day Strength Training Split for Busy Dads: Lose Fat, Build Muscle in 45 Minutes

By Will Duru, BSc (Hons) Sport and Exercise Science, Award-winning Personal Trainer with over 10 years of experience in strength training and optimising recovery.

The Ultimate 2-Day Strength Training Split for Busy Dads

As a personal trainer with over a decade of experience, I’ve worked with countless dads who share a common goal: they want to lose the “dad bod,” build some muscle, and feel more energetic, but they’re short on time. Between work, family, and life’s other demands, spending hours in the gym just isn’t feasible. That’s why I’ve designed this highly effective 2-day strength training program. It’s built for busy fathers who want maximum results in minimum time. This isn’t about endless cardio or complicated exercises; it’s about smart, efficient training that reshapes your body and revitalises your health.

The goal here is simple: to get you comfortable and confident in the gym by giving you a clear, science-backed plan. We’ll focus on why strength training is the fastest way to burn fat and build a stronger, leaner physique.

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Why Strength Training Trumps Endless Cardio

Many people mistakenly believe that to lose fat, you need to run for miles. While cardio has its place, strength training is far more effective for transforming your body composition. When you lift weights, you create microscopic tears in your muscle fibers. Your body then uses energy (calories) to repair and rebuild these fibers stronger and bigger. This process, known as muscle protein synthesis, elevates your metabolism for hours—and even days—after your workout is over. The more muscle you have, the more calories your body burns at rest. Essentially, you turn your body into a 24/7 fat-burning machine.

The Ultimate 2-Day Strength Training Split for Busy Dads: Lose Fat, Build Muscle in 45 Minutes

Unlock Your Hormonal Advantage

Strength training does more than just build muscle; it has a profound impact on your hormones, which is especially important for men.

  • Testosterone and Growth Hormone (GH):  Resistance exercise is one of the most effective natural ways to boost testosterone and GH [1]. These anabolic hormones are critical for building muscle mass, losing fat, maintaining bone density, and sustaining energy levels. As men age, testosterone levels naturally decline, but strength training can help counteract this.
  • Insulin Sensitivity:The “dad bod” is often linked to poor insulin sensitivity, where the body’s cells don’t respond well to insulin, leading to fat storage, particularly around the midsection. Building muscle dramatically improves how your body uses carbohydrates, enhancing insulin sensitivity and helping you store less fat [2].
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Beyond the Biceps: The Life-Changing Benefits

The rewards of this program extend far beyond what you see in the mirror. My clients consistently report transformative changes in their daily lives:

  • Skyrocketed Energy Levels: You’ll feel more vibrant and capable of keeping up with your kids.
  • Improved Posture: Strengthening your core and back muscles helps you stand taller and reduces aches and pains from sitting at a desk.
  • Boosted Confidence: Feeling strong and looking better has a powerful ripple effect on your self-esteem at work and in your personal relationships

    The Busy Dad’s Guide to Making It Happen

    “I don’t have time” is the most common excuse I hear. The truth is, you have 24 hours in a day. It’s about making time, not finding it. Block out your workout sessions in your calendar like you would any important meeting. The best times for dads are often during lunch breaks or in the early evening before heading home. This plan is designed for a maximum of 45 minutes, making it easy to fit into a busy schedule. Find a gym close to your home or office to eliminate travel time as a barrier.

The Ultimate 2-Day Strength Training Split for Busy Dads: Lose Fat, Build Muscle in 45 Minutes

Fueling Your Transformation: Nutrition and Supplements

The Foundations of a Healthy Diet

A healthy, balanced diet is non-negotiable. Focus on whole foods and control your calorie intake. This doesn’t mean you need to starve yourself. Prioritise lean protein and healthy fats, as they are more satiating and crucial for hormone production and muscle repair.

To build muscle, aim for approximately 1.6-2.2 grams of protein per kilogram of your target body weight. Fill the rest of your diet with complex carbohydrates (like oats, brown rice, and vegetables) for energy and healthy fats (like avocados, nuts, and olive oil) for hormone regulation.

Example Calorie Control: Let’s say a 90kg man wants to lose 10kg. A sensible approach would be to create a moderate calorie deficit. Using an app like MyFitnessPal to log your food can be a game-changer. By tracking your intake, you can ensure you’re hitting your protein goals while staying in a deficit to encourage fat loss without feeling overly restricted.

Supercharge Your Results with Smart Supplementation

While supplements aren’t magic, the right ones can accelerate your progress.

  • Clear Whey Protein: If you struggle to hit your protein goals, a supplement can be incredibly helpful. Clear Whey Isolate is a fantastic option, especially if you’re not a fan of milky shakes or are lactose intolerant. It’s a lighter, more refreshing alternative that still provides the high-quality protein your muscles need to recover and grow [3].
  • Creatine Monohydrate: This is one of the most researched and effective supplements for improving strength and power output. Taking 3-5 grams of creatine before your workout can help you lift heavier and get more reps, which directly translates to better results from your training [4].

Your Pre-Workout Blueprint: The Warm-Up

Before you even touch a weight, it’s crucial to prepare your body for the work ahead. Don’t skip this part! A proper warm-up prevents injury and improves performance.

Start each workout with 15 minutes of light cardio. This could be a brisk walk on an incline treadmill, a steady pace on the elliptical, or a cycle. The aim is to gently increase your heart rate, warm up your muscles, and get your blood flowing.

After your cardio, spend 5 minutes on dynamic mobility stretches. These movements take your joints through their full range of motion, preparing them for lifting. Try these:

  • Cat-Cow: Great for spinal mobility.
  • World’s Greatest Stretch: Opens up your hips, hamstrings, and thoracic spine.
  • Arm Rotations: Loosens up the shoulder joints.

The 12-Week, 2-Day Split Workout Plan

Before every workout, make sure you warm up properly. Start with 5-10 minutes of light cardio, like an incline walk or a steady cycle, to get your blood flowing. Follow that with 5 minutes of dynamic stretches like cat-cow, the world’s greatest stretch, and arm rotations to prepare your body for the work ahead.

This program is split into two phases. For the first six weeks, you’ll focus on mastering the movements and building a solid foundation. In the second six weeks, we’ll crank up the intensity by adding supersets.

Phase 1: Building the Foundation (Weeks 1-6)

Perform these two workouts on non-consecutive days (e.g., Monday and Thursday).

Day 1: Upper Body Push & Pull

Exercise

Sets

Reps

Rest (seconds)

Dumbbell Bench Press

3

8-12

60-90

Lat Pulldown

3

8-12

60-90

Seated Dumbbell Shoulder Press

3

10-15

60

Seated Cable Row

3

10-15

60

Tricep Pushdown

2

12-15

45

Dumbbell Bicep Curl

2

12-15

45

Day 2: Legs & Core

Exercise

Sets

Reps

Rest (seconds)

Goblet Squat

3

8-12

60-90

Leg Press

3

10-15

60-90

Dumbbell Romanian Deadlift

3

10-15

60

Leg Extension

2

12-15

45

Plank

3

Hold for 30-60s

45

Medicine Ball Russian Twist

3

15-20

45

Phase 2: Upping the Intensity with Supersets (Weeks 7-12)

A superset is when you perform two exercises back-to-back with no rest in between. This is a fantastic way to increase the intensity and get more work done in less time.

Day 1: Upper Body Push & Pull (Supersets)

Exercise

Sets

Reps

Rest (seconds)

A1: Dumbbell Bench Press

4

8-12

0

A2: Bodyweight Push-ups

4

To Failure

90

B1: Lat Pulldown

4

8-12

0

B2: TRX Rows or Dumbbell Reverse flys 

4

To Failure

90

C1: Seated Dumbbell Shoulder Press

3

10-15

0

C2: Dumbbell Bicep Curl

3

12-15

60

Day 2: Legs & Core (Supersets)

Exercise

Sets

Reps

Rest (seconds)

A1: Dumbbell or Kettlebell Goblet Squat

4

8-12

0

A2: Bodyweight Squats or Jump Squats 

4

To Failure

90

B1: Leg Press

5

10-15

0

B2: Sledge Push Or Dumbbell Wwalking Lunges 

4

20 yards

90

C1: Plank

3

Hold for 60s

0

C2: Medicine Ball Slams

3

15

60

 

strength training app- 12reps app - personalised strength training

Tracking Your Progress with the 12Reps App

Consistency and tracking are the keys to success. I highly recommend using the 12Reps app to log and monitor your workouts. This free strength training app is designed to make your life easier. Here’s how it helps:

  • Build Your Routine: Navigate to the “Build Your Routine” section and select all the exercises from this workout program.
  • Stopwatch Timer: Use the built-in stopwatch to monitor your rest periods, ensuring you’re sticking to the plan.
  • Log Everything: Track your weights, reps, and sets for every exercise. This data is invaluable for progressive overload.
  • Progress Tracking: The app provides comprehensive progress tracking so you can see your improvements over time.
  • Expert Content: Access expert-designed routines and over 1,500 exercise demos performed by certified personal trainers.
  • Pre-Plan Workouts: Plan your sessions ahead of time and even coordinate with friends.
  • Share Your Wins: The app has features to share your personal bests (1RM) on social media, which can be a great motivator.

[Download the 12Reps app for free]  https://12reps.onelink.me/jRI3/m8094fvi

strength training app- 12reps app - personalised strength training

Your Blueprint for Success

This 12-week, 2-day strength-training split is designed for busy dads who want to reclaim their health and physique. By focusing on compound movements, progressive overload, and smart nutrition, you’ll build muscle, burn fat, and feel more energetic than you have in years. Remember, the hardest part is showing up. Once you make training a non-negotiable part of your routine, the results will follow. Get to the gym, put in the work, and watch your body—and your life—transform.

Full-Body Kettlebell Workout for Busy People | 12Reps App

References

[1] Kraemer, W. J., et al. (2005). “Hormonal responses and adaptations to resistance exercise and training.” *Sports Medicine*. [https://pubmed.ncbi.nlm.nih.gov/15831061/ https://pubmed.ncbi.nlm.nih.gov/15831061/

[2] Niemann, M. K. J., et al. (2020). “Strength Training and Insulin Resistance: The Mediating Role of Body Composition.” *Journal of Diabetes Research*. [https://pmc.ncbi.nlm.nih.gov/articles/PMC7235686/ https://pmc.ncbi.nlm.nih.gov/articles/PMC7235686/

[3] Park, Y., et al. (2019). “Effects of whey protein supplementation prior to, and following, resistance exercise on body composition and training responses.” *Journal of Exercise Nutrition & Biochemistry*. [https://pmc.ncbi.nlm.nih.gov/articles/PMC6651693/ https://pmc.ncbi.nlm.nih.gov/articles/PMC6651693/

[4] Mills, S., et al. (2020). “Effects of Creatine Supplementation during Resistance Training Sessions in Physically Active Young Adults.” *Nutrients*. [https://pmc.ncbi.nlm.nih.gov/articles/PMC7353308/ https://pmc.ncbi.nlm.nih.gov/articles/PMC7353308/

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12Reps Team

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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