Be Better Everyday

JKConditioning is a private fitness community located in the centre of St. John’s, Newfoundland. We offer personal training for busy people who want to improve their overall health and fitness. Personalized training sessions take place in a group setting under the guidance of our credible and reputable trainers. This means that you get the results of a personal training program with the support and camaraderie of our close-knit fitness community. We design workouts to make you better, not to see how much you can sweat.

Jon Erik Kawamoto and Thomas King standing in front of the JK Conditioning logo
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How We Work

Most fitness professionals promise “6 pack abs in 6 weeks,” or a similar message. We don’t do before and afters because there is no “after.” There is only continuous improvement. Also, our group training creates a community. When you join JKC, you are joining something bigger than yourself.

Custom Workouts in a Group Environment

Get the best of both worlds: a custom plan tailored to your needs and current ability along with the support from the JKC fitness community.

We Offer Flexible Scheduling

No locked-in days or times here. Train when’s convenient for you so you don’t have to miss workouts.

Pay As You Go

Enjoy a different fitness experience. Pay for training on your terms with no long-term membership fees. Out of town? No worries. Only pay when you workout.

Client Reviews

Read what clients have to say about their experience at JKC.

I have never previously seen the passion and level of care that Jon and Thomas bring to everyone who works out at JKC. Their knowledge, insight and skills are extraordinary, and they work with everyone individually to ensure the best possible results. The attention to detail and to every person’s specific requirements and goals, and the incredible, constant encouragement they provide, is, in my opinion, what truly distinguishes JKC from any other program in which I’ve participated. I am extremely pleased with the progress I’ve achieved thus far, and it’s largely attributable to Jon and Thomas and the approach they take to training and working with people.

cas dyke

I started training at JKC in 2016 because I had built up a number of muscle imbalances from old injuries and activities like rock climbing which had led to some really bad posture and mobility issues. On top of that some friends had convinced me to sign up for a half-ironman. Working with Jon and Thomas was a way to pull my body back into alignment and make sure it wouldn’t fall apart during my race. The staff at JKC pride themselves on continuously advancing their knowledge, which leads to new and inventive way to address problems, old and new. I got my Dad to start training here and recommended JKC to all looking to improve their strength and fitness.

trap bar deadlift

A few of my wonderful friends and colleagues recommended JKC. I was told by one colleague that “It’ll be the best thing you ever do for yourself” and she was right! To be honest, I didn’t have much experience in any gym setting. And NO prior weight training experience. It was always so overwhelming! But from the first day, nothing was intimidating about JKC. Each workout is set up just for me, and with my specific skills and goals in mind. There are no stupid questions, you learn as you go, and what I really love, I always feel included and important, regardless of my skills/experience.

JKC was recommended to me by my good friend Casidhe Dyke. Cas had been training with JKC for a while, and both he and his father had seen great results from the personal training that Jon and Thomas were giving them. I was and still am primarily a triathlete and I’ve always struggled with injuries. I was talking to Cas about incorporating more strength training in my program to try and prevent injuries going forward and Cas suggested that I give JKC a try. I reached out to Jon not long after, and the rest is history! After working with Jon and Thomas for a few months, I was getting stronger, faster, and most importantly, I was staying injury-free. I ended up being able to train the whole season without significant injury and posted a personal best at Ironman Copenhagen in 2018. A big part of that was due to the strength training and coaching I received at JKC.

Featured Coaching Programs

We are now accepting new clients for in-person training!

Personal Strength Training

Our goal is to transform your life through the avenue of health and fitness. New to strength training? Been lifting for years but in a rut? We got you covered.

Latest Activity on Social Media

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