Build Lasting Performance, Even with a Busy Schedule

My Simple, Science-Backed Strength Coaching Program Tailored for Busy Professionals & Parents. No More Guesswork. Just Results.

Welcome to Brett Sizeland Coaching

I’m Brett Sizeland, a UKSCA-accredited Strength & Conditioning coach and former professional MMA athlete.

As a father of autistic twin boys, I understand the challenges of balancing family, work, and personal health.

That’s why I created Sustainable Strength—a simple, evidence-based program designed to fit into the busy lives of parents like you.

I specialise in helping parents build lasting strength with efficient, tailored coaching that covers mindset, nutrition, and training.

My goal is to make fitness achievable without sacrificing time with your loved ones. I'll help you build sustainable habits and transform your health—so you can thrive, no matter how busy life gets.

Recognised by Clients and Industry Leaders

Trusted by professionals and featured in respected publications across the UK, delivering evidence-based results. 

The Struggle You Face


As a busy parent or professional, finding time for your health and fitness often feels impossible.

Between work, family commitments, and the daily grind, fitness can seem like an overwhelming burden, rather than an achievable goal. You might be feeling:

  • Exhausted and too tired to fit in a workout after a long day
  • Frustrated with programs that are too complex or time-consuming
  • Unsure about what really works to build lasting strength health
  • Disappointed by short-term fixes that don't last

How We Fix It: Sustainable Strength Program

The Sustainable Strength Program is not about fitting you into a rigid fitness program—it’s about creating a program that works with your life.

Here’s how I make it easier for you to achieve long-term results:

  • Flexible, Time-Efficient Workouts: No more endless hours in the gym.
  • Science-Backed Simplicity: No complicated fitness strategies. 
  • Customised to Your Lifestyle: A plan that works for a real person with a demanding job and a family. 

Results You Can Expect

Stack of Bodyboss weight plates and a partially visible barbell in a gym setting.

Achieve Noticeable Strength Gains Without Spending Hours in the Gym

I focus on key movements that give you the biggest strength and performance gains in the shortest time possible. My programs are tailored to your experience level and goals, ensuring you stay on track without burning out.

Customised, Simple Nutrition Guidance for Busy Lives

Customised, Simple Nutrition Guidance for Busy Lives

You’ll receive custom nutrition guidance based on your individual needs. This is not a one-size-fits-all approach; it’s designed to help you build lean muscle, manage body composition, and improve energy—all without spending hours in the kitchen.
 

Long-Term Results Without the Burnout

Long-Term Results Without the Burnout

My program provides ongoing accountability and support, with weekly check-ins, progress tracking, and adjustments to your plan as needed. You’ll never feel like you’re doing this alone.

Frequently Asked Questions

Everything You Need to Know About The Sustainable Strength Program

Everything you need to know about getting started with Sustainable Strength—from how it works to what tools we use. Find the answers to all your questions here.

I’m too busy – how can I fit this into my schedule?

That’s exactly why I created Sustainable Strength.

This program is designed for busy professionals and parents, so you can get results with as little as 3-4 hours of training per week.

The workouts are short, focused, and built around the most effective exercises, meaning you’ll make progress without spending countless hours in the gym.

I’ll help you make fitness a natural part of your routine—not something that adds more stress to your day.

I’ve tried fitness programs before and didn’t see results—what makes this different?

Unlike one-size-fits-all programs, Sustainable Strength is completely personalised to you. I’m a UKSCA-accredited S&C coach, and I use science-backed methods that focus on what really works.

No gimmicks, no overwhelming routines—just simple, effective strength training that targets the big-ticket movements for maximum results.

I also focus on habit-building and accountability, ensuring that this isn’t just another short-term fix, but a sustainable solution.

I’m worried I won’t stay motivated—how will you keep me on track?

You won’t be doing this alone. One of the core features of Sustainable Strength is the ongoing accountability and support. You’ll receive weekly check-ins, progress tracking, and personalised adjustments to your plan.

I’m here to guide you every step of the way, ensuring that you stay motivated and committed. Plus, you’ll always know exactly what to focus on, which makes it much easier to stay on track.

Do you offer personal training?

Yes, we offer one-on-one personal training sessions tailored to your fitness needs and goals.

What if the program doesn’t work for me?

I’m so confident that Sustainable Strength will work for you that I offer a 30-day money-back guarantee.

If after 30 days you don’t feel like the program is helping you move towards your goals, I’ll give you a full refund—no questions asked.

You have nothing to lose, but you’ll gain sustainable strength, confidence, and a healthier lifestyle.

I’m not very tech-savvy—will I be able to use the tools in this program?

Absolutely! I’ve designed Sustainable Strength to be simple and easy to use for everyone, regardless of tech experience.

We use straightforward, freely available apps that are user-friendly and require no technical expertise.

I’ll guide you through everything step-by-step to make sure you’re comfortable.

How will we stay in touch throughout the program?

I keep communication easy and personal. We’ll use WhatsApp or email, whichever you prefer, for regular check-ins, progress updates, and to answer any questions you have.

It’s simple, convenient, and you’ll always have direct access to me for support.

I’m worried I’ll get overwhelmed by too many apps and notifications—how do you manage that?

Don’t worry, I keep things as simple as possible.

I only use the essential tools—HEVY for workouts, MyFitnessPal for nutrition, and WhatsApp for communication.

You won’t be bombarded with constant notifications, and I’ll help you set everything up so it’s easy to manage. Plus, I’m here to provide support if you ever need help navigating the apps.

Pricing

Muscular man in a gym promoting Sustainable Strength online coaching with a 'Join Now' button.
Popular

Online Coaching

ÂŁ97

per month

🚀 START TODAY
Don’t wait until next Monday, next month, or next year to finally take control of your health and fitness. Start building strength that lasts, without compromising your time or energy.

Full 1-2-1 personalised training plans

Personalised nutrition guidance

Access to online training & resources portal

Weekly group feedback and adaptation sessions

Membership in our supportive accountability community

Email support & Whatsapp responses within 48 hours

Voice note and video feedback

Man standing in a gym with text promoting Sustainable Strength Transformation Plan and a Join Now button.

Transformation Plan

1,067

12 Months

🚀 START TODAY
Offers all standard plan benefits along with a customised nutrition plan.

Full 1-2-1 personalised training plans

Personalised nutrition guidance

Access to online training & resources portal

Weekly group feedback and adaptation sessions

Membership in our supportive accountability community

Email support & Whatsapp Support 24 Hour Response

Voice note and video feedback

Monthly 1-2-1 Meet Up & Evaluation

⚠️ Risk Reversal ⚠️

My 30-Day Money-Back Guarantee: I’m confident that Sustainable Strength will work for you, but if after 30 days you’re not seeing the results you expect, I’ll give you a full refund. No questions asked.

You’ve got nothing to lose—just sustainable strength to gain.

Still Not Sure? Book A Free Call With Me

Contact Me Today

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