Deciding between Level 2 and Level 3 personal trainer certifications? Learn the key differences, which qualification suits your career goals, and how to fast-track your journey with THFI.

Discover 7 compelling reasons to get certified as a personal trainer in 2025. Learn how certification can boost your career, increase earning potential, and help you make a lasting impact in the fitness industry.

Discover the key traits the best personal trainers all share - see how you compare, and how you can develop to help your clients. 

This article walks you through what a fitness plateau is, why it happens, and what you can do to fix it and get your clients back on track.

You’ll learn the early warning signs that a plateau might be up ahead so you can act quickly.

It’s easy to focus too heavily on the gym part of being a PT, but neglecting other key areas of the job is a pitfall so many new trainers fall into – often without even realising it. 

Are you thinking about becoming an outdoor personal trainer? Or moving more of your group training sessions outdoors?

This article gives you five golden tips to get you started as an outdoor PT... so you can create incredible training experiences that your clients will love...

Do you feel like you’re putting in countless hours of hard work as a personal trainer, but not earning the kind of money other PTs are? 

This article is your guide to overcoming these challenges and unlocking your earning potential...

Are your clients hitting a wall with their progress despite following their workout routines to the letter?

This article shows you some of the simple fixes and the advanced plateau-busting techniques you can use immediately with your clients.

How do you make athletes stronger, faster, and more skilful to perform better in their chosen sport? 

The secret often lies in sports-specific training. Read our guide to working with athletes as a PT.

If you want to find out how sports therapy can benefit your clients… 

Or you’re keen to know how to incorporate it into your sessions, have a read of this article…  

Do you want to know how to use heart rate zone training to create smarter training programs for your clients? This article explains everything you need to know: how heart rate zone training works, how to calculate heart rate zones, which zones are best for your client’s goal, and how to track progress and ensure they’re not overtraining, and advanced tips for trainers...

Looking for ways to freshen up your workouts, or avoid spending thousands of pounds on new training gear? This article gives you new ways to train your clients with things you can find around the house.

Will using an altitude training mask help your clients improve endurance, V02 max, and recovery times in the same way?

Our latest blog takes a look at the science of altitude training and the gym masks that supposedly simulate the effects when training in a gym at sea level.