Personal Trainer, Business Owner & Dad of 2

Hi, I’m Kieran Birch, a dedicated personal trainer in Dorset, entrepreneur, and proud dad of two. With over 13 years in the fitness industry, I’ve helped countless people across Poole, Bournemouth, and Christchurch transform their bodies, build confidence, and unlock their full potential.

I know what it’s like to juggle family life and business while still trying to prioritise health because I live it every day. Alongside running One Fitness Coaching, I also own Grade 92, a thriving barber chain. Balancing business, parenthood, and personal health has shown me first-hand how important it is to make fitness a non-negotiable. That’s why I’m passionate about helping other parents, professionals, and entrepreneurs achieve their goals with the right personal training and support.

My approach goes beyond quick fixes. I believe that fitness fuels success: when you take care of your body, you show up stronger in every part of life. Whether you’re a busy parent wanting to get back in shape or a business owner searching for a personal trainer near me, my coaching is built to help you create sustainable habits, improve productivity, and build long-term confidence.

At One Fitness Coaching, I provide:

• Personalised training programs tailored to your lifestyle

• Expert nutrition coaching that’s simple and sustainable

• Mindset support to help you stay consistent and motivated

These are the same principles, discipline, consistency, and passion that I’ve used to grow my businesses and guide my clients through successful transformations.

If you’re ready to work with a dedicated personal trainer in Poole, Bournemouth, or Christchurch, and you want a stronger body as well as a stronger mindset, I’m here to help.

💪 Your success starts with your health. Let’s build it together