Blog

Writing on training, nutrition, and mindset.

No-nonsense pieces on getting stronger, eating better, and building habits that actually stick. Written for working adults, not competitive athletes.

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Everything else.

A client's progress recorded on the wall at Phenom Gym in Cork, the kind of simple strength tracking that supports a prediabetes exercise plan
Training ·

Strength training for prediabetes: what helps

Does strength training help prediabetes? What a 2024 study of 1,946 adults found, plus a sensible starting plan from a personal trainer in Cork.

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Charlie Johns coaching a client through a supervised strength session at Phenom Gym in Cork, the gradual, well-sequenced style of training recommended for getting back into exercise after having a baby
Training ·

Strength training after a baby: what helps

When is it safe to start strength training after having a baby? The evidence on diastasis recti, pelvic floor safety, timing, and a sensible plan.

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Charlie Johns coaching a client through a supervised strength session at Phenom Gym in Cork, the kind of combined strength and cardio training recommended for PCOS and PMOS
Training ·

Strength training for PCOS: what helps

Does strength training help PCOS (now PMOS)? What the newest evidence says about insulin resistance, hormones, and a sensible starting plan.

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Charlie Johns coaching a hip-hinge movement at Phenom Gym in Cork, the kind of glute and core strengthening work that helps a lower back worn down by a desk job
Training ·

Lower back pain from a desk job: what helps

Why sitting all day causes lower back pain, what the evidence shows actually helps, and a simple strength-based plan to start this week.

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Charlie Johns coaching a client through a supervised strength session at Phenom Gym in Cork, the moderate, progressive style of training recommended during perimenopause and menopause
Training ·

Strength training for menopause: what helps

Does strength training help with menopause? The evidence on muscle loss, hot flushes and mood, plus a simple starting plan and how heavy to lift.

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Charlie Johns coaching a small group through a supervised strength session at Phenom Gym in Cork, the steady, moderate style of training recommended for people managing arthritis
Training ·

Strength training for arthritis: what helps

Is it safe to lift weights with arthritis? What the evidence says, a sensible starting plan, and why going harder isn't actually better.

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Phenom Gym signage on Monahan Road in Ballintemple, Cork, where personal trainer Charlie Johns coaches nervous beginners through their first gym sessions
Beginner ·

How to overcome gym anxiety as a beginner

Nervous about starting the gym? Here's how to beat gym anxiety, what to do on your first visit, and a simple first-month plan for complete beginners.

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Charlie Johns, personal trainer in Cork, holding a loaded barbell in a power rack at Phenom Gym during a heavy strength training lift
Training ·

How to build bone density with strength training

Can you build stronger bones after 30? Here's how strength training helps bone density, how often to lift, a starter plan and when to see your GP first.

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Beginner ·

How often should you go to the gym? (Answers by experience level)

How many times a week should you go to the gym? A clear answer segmented by experience level (beginner, intermediate, advanced, returning) plus the truth about why consistency matters more than frequency.

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Charlie deadlifting at Phenom Gym, Cork
Training ·

How long does it take to see results from personal training?

An honest, evidence-based timeline for personal training results, broken down by goal (strength, muscle, fat loss, cardio, energy, and habit) with real numbers you can hold yourself to.

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Charlie at Phenom Gym, Cork
Nutrition ·

Can a personal trainer write a meal plan? (And should they?)

A plain-English answer to whether your personal trainer can give you a meal plan, what nutrition support they can actually provide, and when you should see a dietitian instead.

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Charlie working remotely from Corfu, where many online coaching clients are based
Training ·

Online vs in-person personal training: which is right for you?

A coach's honest guide to choosing between online and in-person personal training. What each format does well, who each one suits, and how to decide based on your experience level and situation.

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Charlie outside Phenom Gym, Cork
Cork ·

How to choose a personal trainer in Cork (and how to spot a bad one)

A practical guide to picking the right personal trainer in Cork. What qualifications actually matter, the questions to ask before you sign up, and the red flags to walk away from.

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Wall of National Records and competition certificates at Phenom Gym, Cork
Cork ·

Personal Trainer Cost in Cork (2026 Prices)

How much does a personal trainer cost in Cork? From group sessions to 1-to-1 coaching, here's what you'll actually pay in 2026.

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Reviews

What clients say.

From day one I felt comfortable working with Charlie to reach my fitness goals, he helped me go from someone terrified of the gym to someone who loves going. I highly recommend his online training, great programs listens to what you want from it and is there every step of the way.

Online client, Australia, 2022

The online training with Charlie has been nothing but the absolute best!! He is always checking in pretty much everyday making sure that I am hitting my training and nutrition goals and giving me a few tips and tricks along the way. The training program is tailored to your specific needs and if there is something you don't like Charlie will change it to best suit you. Would highly recommend this program if you were wanting to kick goals like I definitely have

Online client, Australia, 2022

The pt program has been very motivating. It has become a great start to the day and helped me get into a routine. My goal was and is to build my strength and we have definitely been able to work towards that. I am feeling stronger and have found this to be very rewarding. Thank you for all your help Charlie.

Client, Australia, 2022

Hey Charlie! All I can say is thankyou so so very much for all the hard work you put into our sessions! They have been the literal best, not only helping me to achieve becoming more toned and having strength but my confidence is growing so much after every session. I was very nervous to return to pt after a small setback but with you beside me each step of the way & being the biggest motivator I'm super happy to have returned! Thankyou again, I'm so grateful! 💪

In-person client, Australia, 2020

Initially I was nervous to start doing PT but as soon as I did my first session with Charlie I knew I had nothing to worry about, his experience and knowledge put me at ease straight away! Not only do I feel better within myself both physically and mentally, I actually enjoy exercising. Charlie makes the sessions so enjoyable while always encouraging me to push myself. I can't wait to see how far we can go! Would 100% recommend Charlie for all your PT needs!

In-person client, Australia, 2020

Just wanted to say a massive thank you for how much you've helped me since we've been doing PT. You've helped me improve with my form in certain exercises and helped me push through sets I would have given up on if I were on my own, you've also pushed me to try new exercises I was too scared to try 😂 love how chill and easy to get along with you are. Thank you again!

In-person client, Australia, 2020

I started with Charlie about 2 months ago and I've been seeing amazing results! Especially in my strength! The sessions are great and push me pretty hard! I can now do multiple push-ups when at the start I could barley do 5 in a row! Charlie is a great guy to work with and I am slowly beginning to find working out enjoyable!! Definitely recommend if you are looking into a few sessions with a PT Charlie is the guy to go to!!

In-person client, Australia, 2020

PT is something I never thought was for me, but after getting over the initial thought and giving it a crack, I have never looked back. I even enjoy getting up early in the mornings now! 😂 Would 100% recommend Charlie, he has helped my confidence grow and feel good about exercising!

In-person client, Australia, 2020

I look forward to my PT sessions with Charlie each week. He is very enthusiastic, encouraging and motivating. He provides different challenges each session and pushes me to my best potential. He is helping me achieve my goals for a fitter and healthier lifestyle. Highly recommend CJPT 👏

In-person client, Australia, 2020

I really just want to say a massive thankyou for last nights session! You pushed me and that's exactly what I wanted & needed! I can't wait to come back again! Plus I can't believe how just 1 session has given the motivation to start working out again!

In-person client, Australia, 2020

CJPT is the man! I don't think I've ever stuck to anything as well as this, yet we are 5 weeks in, every morning at 6am I've been up and moving. Getting me to do that is a skill all on its own! Charlie has been great to deal with, very easy to talk to, and made me feel comfortable every step of the way. Can't wait to see what the next 5 weeks bring!

In-person client, Australia, 2020

In our short time together I've already learnt so much! I'm already starting to see physical changes and you've helped me make positive changes in my life! You obviously know what you're doing and aren't afraid to push me to get the best out of me! Thanks for it all so far, I can't wait to see how far we can go!

In-person client, Australia, 2020

Thanks again Charlie for being my PT for the last month and a bit. You've been encouraging, supportive and most importantly you motivated me on days I was tired and being lazy. My fitness and muscle tone has increased significantly since beginning my fitness journey with you and I cannot thank you enough!! 💪

In-person client, Australia, 2020

Charlie and his program worked so well in motivating me to get back on my feet and eat better post lockdown. He was really good at giving advice and helping me when I needed it! 10/10 would recommend

In-person client, Australia, 2020
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