KJ Fitness logoKJ Fitness

Tel Aviv & surrounding areas

Empowered Through Movement

Strength isn’t just about how you look — it’s about how you feel. Move better, get stronger, and build a body that supports you for life.

10+ yearsMartial arts, group fitness, CrossFit
Tue 18:15Longevity Strength Class
Judo & MMACompeted for South Africa
Kirsten Jemma, founder of KJ Fitness, training with a barbell

Strength creates freedom, and that’s what we’re building.

About

Who is Kirsten Jemma?

My journey started in competitive sport, representing South Africa in judo and MMA. I learned early that strength isn’t just something you build in training — it carries into every part of your life. It gives you confidence, capability and the freedom to move through life feeling strong and in control, especially as you get older.

Over the past 10+ years I’ve worked across martial arts, group fitness and CrossFit, coaching people at every stage — from complete beginners to experienced athletes.

Today, my focus is on helping people build strength that lasts. KJ Fitness is about helping you put yourself first and feel like the best version of yourself.

My approach combines functional strength training, movement quality, consistency and long-term progression. The goal is simple: help you move better, feel stronger, and keep improving over time.

  • Judo & MMACompeted for South Africa
  • 10+ yearsMartial arts, group fitness, CrossFit
  • All levelsComplete beginners to athletes

What we’re about

The KJ Fitness Approach

At KJ Fitness, it’s not about quick fixes or short-term results. It’s about building a body and mindset that keep you strong, capable and feeling good — for life.

  • Strength

    Real, functional strength that serves you in everyday life — not just in the gym. We build a solid foundation that carries you forward for years to come.

  • Longevity

    Training smart means training for the long game. We protect your body, prevent injury and maintain mobility so you stay active and strong as you age.

  • Movement Quality

    Technique always comes first. Moving well, efficiently and safely is the foundation everything else is built on — power, performance and confidence.

  • Consistency

    There are no shortcuts. The real secret is showing up, again and again. We build routines and habits that make training a natural part of your life.

What’s on

Upcoming Events

Workshops, pop-up workouts and collaboration events — stay connected and keep moving.

No events right now

New workshops and pop-ups are announced on WhatsApp first. Send a message and you’ll hear about the next one.

Get notified on WhatsApp

True strength isn’t just about how you look — it’s about how you feel. Confident, capable, and in control of your body for life.

KirstenFounder of KJ Fitness

Services

Find Your Path

Every service is tailored to your level, goals and lifestyle — with professional support every step of the way.

In-person

Private Coaching

Personalised strength and conditioning sessions tailored to your goals, fitness level and lifestyle. Focused on building strength and muscle, and improving movement quality.

  • 1:1 training₪350/ 55 min
  • Couples (1:2)₪600/ 55 min
  • Small group (4–6 people)₪1,000–1,200/ 55 min
Book on WhatsApp
App + calls

Online Coaching

₪450/ month

A structured, personalised training plan to follow independently — with coaching support, accountability, clear progression and feedback.

  • Initial assessment call
  • Monthly check-in call with plan updates based on your progress
  • App access — tracking, logging, progress & video feedback
  • Ongoing support via app / chat
Ask about Online
In-person + app

Hybrid Coaching

₪600/ month

The best of both worlds: personalised programming plus in-person coaching to refine technique, stay accountable and accelerate results.

  • Everything included in Online Coaching
  • 1 in-person training session per month
  • Option to add extra sessions at a reduced rate
Ask about Hybrid
Outdoor group

Longevity Strength Class

₪280/ month

Focusing on strength, balance and coordination. Designed to help you move better, feel stronger and be the best version of yourself.

  • 1 class per week, Tuesdays at 18:15
  • Outdoors, in the park behind the Daniel Moritz building
  • Suitable for all fitness levels
  • Single-session option
  • Free trial class
Book a free trial
Teams & companies

Corporate / Hi-Tech

Enquiry-based

Tailored fitness experiences designed to improve employee wellbeing, energy and team connection through structured movement and training.

  • Wellness days
  • Team-building fitness sessions
  • In-house weekly or monthly training
  • Events
Enquire on WhatsApp
Not sure which fits?

Book a free consultation and we’ll work it out together.

Free Consultation

Contact

Ready to Get Started?

Reach out for a free consultation — let’s talk, get to know each other, and build the right plan for you.

Send a Message Now