Jon Mortimer & Co Personal Training Mayfair

08/05/2026

20/11/2025

Programming meets expertise to blueprint exercise performance.

Don't waste your time in busy London gyms struggling to get on equipment. Our luxury training space is a quiet and focused environment, perfect for maximising your potential.

We use the personal training software- PT Distinction to track progress and keep you accountable.

Contact us through the website

Jon Mortimer PT Mayfair

26/08/2025

Its time to level up your health, fitness and wellness this September.
With all the conflicting information out there, it can be difficult to know how to make progress in the gym.

Hire an expert and really accelerate your exercise performance.

-Cutting-edge exercise physiology and biomechanics
-Nearly 25 years of tacit knowledge and experience working with clients
-5* training facilities in Central London

Jon Mortimer PT Mayfair

05/06/2025

Key mechanisms of hypertrophy (muscle growth) A quick biology lesson 💪👾📈

- Mechanical tension: The generation of tension within working muscle fibres, which initiates hypertrophy-related intracellular signalling pathways.
- Metabolic stress: Metabolites such as lactate and inorganic phosphate initiate muscle growth when introduced into cells. They are generated in large concentrations in muscles under peak continuous tension.
- Cell swelling: The 'muscle pump' is an increase in intracellular hydration. Theory suggests that this pressure against the cell membrane and cytoskeleton is perceived as a threat to the cells integrity, resulting in an anabolic signalling cascade and reinforcement of the cell structure.

Achieving all three can be done with a combination of concentric, isometric and eccentric muscle contractions during resistance training. Contact us through the website link for more information on cutting-edge personal training programs.

28/03/2025

Greyhound 😎👊💪

24/11/2024

💪

Are you looking to upgrade your dad body? Sign up now for a January personal training package with some of London's best trainers, and have a pass to go absolutely bananas 🍌 over Xmas? 🍾

Just kidding! What are you waiting for? Let's get going now?

-Cutting-edge sports and exercise science
-5 star personal training studio in Central London
-Pay as you train

www.thelondonfitnessagency.com

Specialist Personal Training in Mayfair/Piccadilly/St James/ 5* facilities with a friendly and welcoming atmosphere/ Highly Experienced Personal Trainers/ Total Body Transformations

01/10/2024

Are you maximising your EPOC?

This physiological effect is called excess post-exercise oxygen consumption. Also known as oxygen debt, EPOC is the amount of oxygen required to restore your body to its normal, resting level of metabolic function (called homeostasis).

OXYGEN DEBT = ENERGY USE = CALORIES BURNED = FAT BURNING

The most efficient way of maximising EPOC is through anaerobic pathways I.e. High intensity resistance training. It means stepping out of your comfort zone and pushing your body and mind.

Ready for the challenge? Contact us at Jon Mortimer PT Mayfair. See details in the bio

03/03/2024

Due to high demand, I am pleased to announce that Keith Hahn has joined the senior personal training team.

'I am an American who has been living in London for over a decade. I originally moved to London to work in the Financial Services world after studying for an MBA, only to realize that it wasn't my passion and decided to focus on becoming a personal trainer. I was a Uni level athlete in both American football and basketball. I have trained in combat fighting and functional strength training and specialise in callisthenics, strength and conditioning, and mental toughness.

Keith is now a highly experienced personal trainer whose passion for health, fitness, and wellness is evident in his one-to-one and group exercise sessions. He has helped numerous clients achieve their goals by providing challenging and bespoke workouts.

24/12/2023

Make some 'solid' New years resolutions now! To give you a pass to go absolutely bananas over Xmas! 😁🎅😅

Just kidding! Everything in moderation init.

Start the year with the bang and beat the s**t out of January with some training sessions with a pro. See the website for more details

Jon Mortimer Personal Training Mayfair

10/12/2023

Are you looking for a personal trainer to hit the ground running in January?

Jon Mortimer Personal Training Mayfair has squeezed into the 10 top gyms in Mayfair (see link below)

With over 20 years of experience, Jon takes a holistic approach to health and fitness. For more information, get in contact through the website.

https://www.londonkensingtonguide.com/gyms-in-mayfair/?fbclid=IwAR1-_nZ8meZIP5YzJzOup15L-hC2q4VL0fsX2ez59UvaCv4WKKl2nVOrk_w