Hyun Jin Choi

profilephoto01-001370000076Y5qAAEHyunjin Choi,

Strongfirst Certified Team Leader, Elite Instructor, Iron Maiden, Sinister
Owner of "Powerzone HJ S&C"
IPF Korea National Team, FMS2, FlexibleSteel, GroundForce Method Instructor

Hyunjin is a former nuclear engineer. Since her first SFG experience, she dove into strength training and changed her life. Now, she owns 'Powerzone HJ S&C' in Seoul, S.Korea and teaches group and private strength & conditioning classes for a wide variety of people based on the StrongFirst System She shares her experience and expertise with her students so that they can ,both physically and mentally, lead strong, healthy, happy lives.
As a student of strength, Hyunjin trains herself and follows the principles of Strongfirst. She placed 1st place Tactical Strength Challenge, Women's Elite Division in spring 2016 and 2017. She completed the Iron Maiden challenge, a strict pull-up, pistol and strict press with a 24kg kettlebell, in April 2017 and achieved ‘Sinister’ title, 100 one-hand swings with 32kg and 10 get-ups with 24kg. She is a trailblazer for women's strength in Asia.
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Accepting new students. Training offered in person and online.
Website: www.powerzonehj.com
Contact: Click to contact


Gustavo padilla
Is an amazing team

Best instructor in Korea!!!!
Thank you so much

Team Leader Choi Hyun-jin is a strong woman. She is a person who really loves dogs. She listens to students' questions and teaches them with sincerity. I support strong female team writer Choi Hyun-jin.

kim se young
She so perfect. teacher

really good teacher(coach)

Pak ju hyeon
she is perpect!!!!!!!!!!!!!

Reah, HS
I never workout for past 38 years. I hate workout and any body movement. I started training with hyunjin Choi and now i am totally different person. I like my body and this is my best self. In my belief Hyunjin is the best instructor in Korea! I really really thank her for teaching me. She is the best!!! Come to powerzone HJ!

She taught me how to exercise joyfully and safely and kept me going. It's been three years since l met her. During that time she developed every day and it inspired me. She is both a teacher and a role model.
Let me tell you, If you exercise with her, that's great luck.?

HJ Gangaji Lee
HJ Choi taught me the joy of being strong both physically and mentally.
I was the kind of person who could rarely keep doing the same physical activities for more than a year. It was hard for me to overcome the hurdles from the 'very real' beginner to the next level.
She understands exactly the difficulties facing beginners like myself and teaches us systemically and efficiently to sustain a continuous workout without giving up(Yes! It's been more than 2years since I have been working out at Powerzone HJ S&C!)
I love this place and the strong people I work out with. As I get stronger, I feel much happier and freer!

It has been three years since I worked out with Hyunjin. I was a person who had never touched a barbell(like a normal Korean woman), but now I can lift more than twice my weight. Those who learn from her, not just me, are exceeding their limits day by day.

Hyunjin shows me the goals that are within my reach, and leads to huge changes. I do not need to overwork myself and exercise hard to achieve my goal. All I do is come to the gym and trust her. Also, it all comes in a warm and amicable atmosphere.

If you want to be strong, especially if you are a woman, I strongly recommend her and this gym. You will see a lot of strong women and women who want to be strong, and exercising with them will completely change your life.

Best Teacher Ever

I've been training with her since 2018. I had severe wrist problems before I started exercise. But with her program my wrists got better and better.
I could remember I hardly did getup with 8kg at first. Her program is designed sophisticately and changed every week. All I can do is just follow her program regularly ( If I wanted do any hopeless challenges she wouln't let me do it at all.) If you do, your strengths improve much better.

Recently I found myself could do getup with 24kg both side and one arm swing with 32kg both side. I'm shocked.
"I really could do this? REALLY?"

As well as that I could hope much higher aims. Before, I wanted to be alive(still I want) But now, I want to learn about exercise more and start to study for better performance.

I highly recommand her if you want to live better life. She probably willing to give it to you.

Justin Lee
Hyunjin is a great athlete as well as instructor.
She leads and cares her students both physically and mentally.
She is constantly trying to build up her knowledge of training and develop teaching ability even though she is already an excellent teacher.
She has positive effects on the surroundings with her warm heart.
I admire her as my teacher and role model of training.

This IronMaiden changed my life. I’m 40 years old now, but stronger than ever. She teaches me not only how to be strong but also the spirit of Strongfirst. Her attitude, inspiration and sense of humour brought a whole new perspective to me and i feel that i’m developing in the right direction. Thanks her for this beautiful journey.

She is the greatest teacher I’ve ever met, and willing to help any student with warm heart, to share her experience and the wonderful journey to the strength with anyone by any chance.

Hyewon Song
I am indebted to my father for living, but to my teacher Hyunjin for living well.

Hyunjin has excellent teaching abilities. She has always been driven to develop her skills as a teacher.

Hyunjin has a wonderful rapport with students, especially beginner. Her ability to connect with her students and her talent at teaching simple movements, as well as more advanced skills, are both truly superior.

Hyunjin is the best teacher I’ve ever had. She is my hero.


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