I can't say enough good things about my experience with Arzadon Fitness and their incredible 6 Month transformation program.
+9 lbs muscle, body fat 18% → 9.5%, waist 32.6″ → 29″

Personal Training
Muscle Building Training in Toronto
Our muscle building clients average +10 to +14 lbs of lean mass over 6 months — tracked bi-weekly through InBody 770 body composition scans, not scale weight. Periodized resistance training, recovery management, and data-driven nutrition built from your intake numbers. A program built from your body, not a template. Led by Jay Arzadon — CSCS, Kilo Level 3 Strength Coach, 350+ transformations since 2017.
Programs from $387/month, all-inclusive.
12-24
Week Protocol
8-18
lbs Lean Mass
4
Week Blocks
Training hard isn’t the problem. Training smart — with data behind every decision — is what separates consistent gainers from plateaus. You lift consistently. You track your workouts. But your muscle building results aren’t following. Muscle growth responds to specifics — periodized load structure, nutrition timing around your training sessions, and what your structural balance assessment reveals about which muscle groups are limiting your progress. Without that data, muscle building stalls.
Where you store fat tells you which hormonal systems are limiting your muscle building — biosignature maps the 14 sites. Read: what 14 skinfold sites reveal about your hormones →
The Science
Why muscle building stalls — and what structural testing reveals
Progressive overload only works when the right muscles are doing the work. Most people training consistently for two or more years hit a wall because structural imbalances cap the performance ceiling before volume does. Weak rotator cuffs limit bench press. Underdeveloped glutes reduce squat mechanics. Hip flexor tightness bleeds force out of every lower-body movement. The structural balance assessment identifies these limiters before training starts — not after an injury forces the conversation.
Muscle protein synthesis (MPS) requires three inputs: training volume as the mechanical stimulus, dietary protein as the anabolic trigger, and recovery as where the actual tissue remodeling happens. Sleep restriction cuts MPS by approximately 20%. Suboptimal protein timing blunts the post-training window. Our intake assessment measures metabolic rate for precise caloric targets, biosignature indicators for recovery capacity, and training history for volume tolerance. All three are addressed from week one.
The InBody 770 measures segmental lean mass by limb. If the right arm consistently lags the left, or one leg carries significantly less muscle, that asymmetry becomes the first program target. Vlad gained 14 lbs lean mass in 16 weeks and his squat increased 80 lbs. His structural assessment showed a significant posterior chain deficit. The first 4-week block focused there. But the loading work built on a foundation that didn't exist before the assessment.
Structural balance
Asymmetry is the limiter nobody measures
Strength ratios between push/pull, left/right, and upper/lower determine how much load the program can apply before injury risk rises. We measure these at intake and build the first block around the weakest link.
Progressive overload
Volume must increase in 4-week blocks
Periodization structures load in controlled phases: neuromuscular adaptation, hypertrophy, and consolidation. Without a 4-week progression structure, most programs stall at the same weight for months.
InBody 770 lean mass tracking
Muscle gained, fat stored — measured separately
Bi-weekly segmental lean mass scans show exactly how much muscle was added and whether the caloric surplus is producing fat storage alongside it. The numbers adjust the nutrition in real time.

Data-Driven Growth
Why data matters for muscle building
Most lifters track weight on the bar but ignore the metrics that actually predict muscle growth: total volume load, progressive overload rate, lean mass changes, and recovery markers.
Bi-weekly InBody scans track lean mass gains to the tenth of a pound. Strength metrics are logged every session. If the data shows you are not growing, we adjust immediately.
View AssessmentsMethodology
Our Muscle Building Approach
Structural Balance Testing
Identify strength ratios and weak links before building your program
Progressive Overload
Volume, intensity, and density tracked every session for measurable progress
Growth Nutrition
Controlled caloric surplus with 0.8–1.2g protein per lb of body weight. We explain the reasoning behind every target so you understand why the numbers are set where they are — not just what to eat, but how to read your body’s response.
InBody 770 Tracking
Lean mass gains tracked to the tenth of a pound bi-weekly
Recovery Protocol
HRV tracking, sleep coaching, and personalised supplement guidance. Biosignature assessment and optional blood testing identify deficiencies not correctable through nutrition alone — then we build a targeted supplementation plan around what your body actually needs.
12-Week Periodization
Three 4-week phases targeting different growth signals — heavy lifts, high reps, and controlled time under tension.
Client Outcomes
Real Results
Real strength and lean mass — built with progressive overload, measured every step.
9%
Body Fat
1.85×
BW Deadlift
Age 63
Stronger
“At 63 I’ve never been leaner and look noticeably muscular. The best investment you’ll ever make in your physical and mental well-being.”
Dr. Risto F.
Trained with Stuart · 18 months
−33 lbs
Weight
−7%
Body Fat
+9 lbs
Lean Mass
“Jay doesn’t just train you — he engineers your transformation. 33 lbs down, 7% body fat lost, and 9 lbs of lean muscle gained in 16 weeks.”
Dr. Alex M.
Trained with Jay · 16 weeks
−17%
Body Fat
+5 lbs
Lean Mass
0→10
Pull-Ups
“In just 12 weeks I shed 17% body fat while gaining 5 lbs of lean muscle — and went from 0 to 10 pull-ups in 18 weeks. Numbers I never thought possible.”
Krishanth K.
Trained with Stuart · 6 months
Client Story
Vlad — Tech Entrepreneur, 14 lbs of Muscle in 16 Weeks
Vlad had the mechanics down. He understood progressive overload, knew how to lift, and had been training consistently for years. What he couldn’t solve was the context around his training — international clients, late-night calls, and rarely three full meals in a day. He was advanced enough to push hard. Not recovered enough to grow.
His structural assessment showed a significant posterior chain deficit. But before we could load that pattern effectively, we had to fix the foundation — eating structure, sleep consistency, recovery capacity. Those came first. Once they stabilized, the training had something to build on.
In 16 weeks: 14 lbs of lean mass. His squat increased 80 lbs. InBody scans every two weeks showed exactly what was happening — when the surplus was producing fat instead of muscle, we adjusted. The data drove every decision.
View Vlad’s full story →Highlights
Trained 3× per week around a demanding travel schedule
Eating and sleep structure built before loading phase
Posterior chain deficit identified and addressed at intake
14 lbs lean mass gained over 16 weeks
Squat increased 80 lbs
The Protocol
What your first 12 weeks of muscle building training actually look like
Most hypertrophy programs apply the same template regardless of who's running it. Arzadon starts with a structural assessment. What we find in the first session determines which muscles get prioritized, what load progression looks like, and how much surplus is appropriate for your starting composition.
Week 1 — 90-min intake
Structural baseline
Your first session runs 90 minutes: InBody 770 body composition scan, structural balance movement screen, and strength ratio testing. We measure left/right asymmetries, push/pull balance, and hip/shoulder function. The weakest structural link becomes the first program priority — before any maximum-load work begins.
Weeks 2–6
Neural adaptation and technique
The first block builds motor patterns and establishes baseline loads across all compound movements. Caloric surplus set at 300–500 kcal above maintenance. Protein at 1g+ per lb of target bodyweight. First comparison InBody at week 4 shows lean mass gained vs fat stored — the surplus adjusts accordingly.
Weeks 7–12
Hypertrophy loading
Volume and load increase in the second block. Accessory work targets the structural deficits identified at intake. By week 12, the InBody data shows the exact lean mass gained and whether the caloric surplus was appropriately sized. Most clients gain 6–12 lbs lean mass in this 12-week window.
Training at King West, Toronto: The studio is at 460 Richmond St W, 5 minutes from King Street West and walkable from Liberty Village, the Financial District, and the Entertainment District. Early morning and evening slots available for professionals commuting from downtown or midtown.
Ready to Build?
Every program starts with a structural balance assessment. Book your free consultation to get your custom hypertrophy plan.
Also at Arzadon
Explore More Programs
Male Fat Loss
Focused on reducing body fat while building an athletic, lean physique. Strength-driven. Data-informed. Outcome-focused.
Female Fat Loss
Designed to reduce body fat while preserving strength and lean mass. Structured programming. Measured progression. Sustainable fat loss.
Hybrid Coaching
Combines in-person training sessions with remote programming for maximum flexibility and results.
Program Design
Custom training program architecture built around your goals, schedule, and assessment data. Periodized for progressive results.
Your Coach
Jay Arzadon (CSCS, Kilo Level 3) has been the direct coach on every muscle-building program at Arzadon since 2017. Not a franchise model, not a rotating trainer pool — one coach who has seen 350+ transformations, knows what works, and is in the room with you every session. When you message, he answers.
Start Building Muscle
Tell us about your goals and we'll design your hypertrophy program.
Frequently Asked Questions
How long does it take to build noticeable muscle?
Do I need to eat a lot more to build muscle?
Can I build muscle and lose fat at the same time?
What makes your hypertrophy programming different?
How much does muscle building personal training cost in Toronto?
What happens at my first appointment at Arzadon?
Where is Arzadon Fitness in Toronto?
Strength & hypertrophy clients
