TRAIN SMART. BUILD STRENGTH. TRANSFORM YOUR BODY.
Personal training designed around your life. Work one-on-one with Isaiah, a certified coach helping busy adults build strength, lose fat, and stay consistent through personalized coaching in Leeds & Grenville or online from anywhere.
TRAIN WITH PURPOSE. SEE REAL RESULTS
Most people struggle with fitness, not because they lack motivation, but because they lack structure. Generic workout plans, crowded gyms, and inconsistent routines make it hard to stay on track. At Rumble Fitness, every program is built around your goals, your schedule, and your lifestyle so you can finally make progress that lasts.
- Personalized Coaching / Built for Real Life
Every client receives a personalized training plan built around their goals, schedule, and lifestyle so fitness becomes sustainable, not overwhelming.
WHY TRAIN WITH ISAIAH TUNGA
Personal training designed around your goals, your schedule, and your lifestyle so you can build strength, stay consistent, and achieve lasting results.
Personalized Training
Every client receives a fully customized training plan built around their goals, experience level, and lifestyle to ensure consistent and sustainable progress.
Private Coaching
Train one-on-one with focused guidance and support so you can improve your form, stay accountable, and build confidence with every session.
Flexible Training
Sessions are designed to fit your schedule, whether you train at home, outdoors, or online from anywhere in the world.
Structured Programs
Follow a clear and proven training structure that removes guesswork and keeps you moving forward with measurable progress.
Built for Busy Lives
Programs are designed specifically for busy adults who want effective workouts without spending hours in the gym.
Sustainable Results
Focus on long-term strength, health, and consistency through realistic training that fits naturally into your lifestyle.
Meet Isaiah
Rumble Fitness is built on the coaching philosophy of Isaiah, a certified personal trainer dedicated to helping busy adults build strength, improve their health, and stay consistent.
His approach is simple: fitness should fit your life, not the other way around.
Too many programs fail because they rely on extremes and unsustainable routines. That’s why Isaiah designs every program around your goals, your starting point, and your schedule, so progress feels realistic, achievable, and long-lasting.
Whether you train in person in Leeds & Grenville or online anywhere in Canada, you’ll receive a fully personalized 1-on-1 program, structured progression, and ongoing coaching with real accountability.
Through Rumble Fitness, the focus isn’t on quick fixes—it’s on helping you stay consistent, build strength, and achieve results that actually last.
Real Results From Real Clients
Rumble Fitness helps busy adults build strength, confidence, and lasting fitness through personalized coaching and structured training programs designed around real life.
Rumble Fitness is a great gym. Isaiah is an excellent coach who creates a welcoming and motivating environment. Whether it’s group training or one-on-one sessions, he provides guidance that helps you improve and stay consistent. I would definitely recommend this gym to anyone.
Isaiah has an incredible ability to adapt workouts to each individual, even in a group setting. No matter your fitness level, you feel supported and challenged at the same time. His approach makes fitness accessible, effective, and enjoyable for everyone.
I really enjoy my workouts at Rumble Fitness. The sessions push me to work harder while still being fun and motivating. The environment is welcoming, and Isaiah genuinely cares about helping you improve. Great energy, great coaching, and great results.
I’ve been attending classes at Rumble Fitness and I’m really impressed. Isaiah is a great instructor who makes workouts both fun and effective. There’s a good variety of exercises, making it suitable for all fitness levels.
Personalized Coaching Options
Select the training style that best suits your lifestyle, schedule, and goals. Each program is designed to provide structure, accountability, and measurable progress.
In-Person Training
Train one-on-one with Isaiah at your home, outdoors, or another location that works for you. Each session is tailored to your fitness level and goals.
- Personalized training sessions
- Proper form and technique coaching
- Progressive workout programming
- One-on-one accountability
Online Coaching
Get structured training and ongoing support without being tied to a location. Online coaching provides the flexibility to train from anywhere.
You receive:
- Customized training plan
- Ongoing program adjustments
- Coaching support and check-ins
- Progress tracking
Goal-Based Programs
Focused programs designed to help you achieve specific results such as fat loss, strength building, or improved overall fitness.
You receive:
- Personalized fitness plan
- Structured workout progression
- Habit and lifestyle guidance
- Clear performance tracking
Start Your Fitness Journey
If you have a question about personal training or online coaching,reach out and let’s talk about your goals. Isaiah will help you find the right training plan built around your schedule, lifestyle, and fitness level.
I just started taking classes at Rumble Fitness and I’m already loving it. From the first session, I felt encouraged, supported, and motivated to push myself. Isaiah creates a positive environment and keeps every workout engaging. Highly recommend for anyone looking for a fun and energetic workout.